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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.sis.parameter</a></div>
<h2 title="Class Parameters" class="title">Class Parameters</h2>
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<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></li>
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<li>Parameters</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Cloneable.html?is-external=true" title="class or interface in java.lang" class="externalLink">Cloneable</a></code>, <code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/GeneralParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">General­Parameter­Value</a></code>, <code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Value­Group</a></code></dd>
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<dl>
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="../referencing/operation/transform/ContextualParameters.html" title="class in org.apache.sis.referencing.operation.transform">Contextual­Parameters</a></code>, <code><a href="DefaultParameterValueGroup.html" title="class in org.apache.sis.parameter">Default­Parameter­Value­Group</a></code></dd>
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<pre>public abstract class <span class="typeNameLabel">Parameters</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>
implements <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValueGroup</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Cloneable.html?is-external=true" title="class or interface in java.lang" class="externalLink">Cloneable</a></pre>
<div class="block">Convenience methods for fetching parameter values despite the variations in parameter names, value types and units.
See <a href="DefaultParameterValueGroup.html" title="class in org.apache.sis.parameter"><code>Default­Parameter­Value­Group</code></a> javadoc for a description of the standard way to get and set a particular
parameter in a group. The remaining of this javadoc is specific to Apache SIS.
<div class="section">Convenience methods</div>
This class provides the following convenience static methods:
<ul>
<li><a href="#cast(org.opengis.parameter.ParameterValue,java.lang.Class)"><code>cast(…, Class)</code></a> for type safety with parameterized types.</li>
<li><a href="#getMemberName(org.opengis.parameter.ParameterDescriptor)"><code>get­Member­Name(Parameter­Descriptor)</code></a> for inter-operability between ISO 19111 and ISO 19115.</li>
<li><a href="#getValueDomain(org.opengis.parameter.ParameterDescriptor)"><code>get­Value­Domain(Parameter­Descriptor)</code></a> for information purpose.</li>
<li><a href="#copy(org.opengis.parameter.ParameterValueGroup,org.opengis.parameter.ParameterValueGroup)"><code>copy(Parameter­Value­Group, Parameter­Value­Group)</code></a> for copying values into an existing instance.</li>
</ul>
Most instance methods in this class follow the same naming pattern
than the methods provided by the <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink"><code>Parameter­Value</code></a> interface.
Those methods are themselves inspired by JDK methods:
<table class="sis">
<caption>Methods fetching parameter value</caption>
<tr><th><code>Parameters</code> method</th> <th><code>ParameterValue</code> method</th> <th>JDK methods</th></tr>
<tr><td><a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>getValue(ParameterDescriptor)</code></a></td> <td><a href="DefaultParameterValue.html#getValue()"><code>getValue()</code></a></td> <td></td></tr>
<tr><td><a href="#booleanValue(org.opengis.parameter.ParameterDescriptor)"><code>booleanValue(ParameterDescriptor)</code></a></td> <td><a href="DefaultParameterValue.html#booleanValue()"><code>booleanValue()</code></a></td> <td><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true#booleanValue()" title="class or interface in java.lang" class="externalLink"><code>Boolean.booleanValue()</code></a></td></tr>
<tr><td><a href="#intValue(org.opengis.parameter.ParameterDescriptor)"><code>intValue(ParameterDescriptor)</code></a></td> <td><a href="DefaultParameterValue.html#intValue()"><code>intValue()</code></a></td> <td><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Number.html?is-external=true#intValue()" title="class or interface in java.lang" class="externalLink"><code>Number.intValue()</code></a></td></tr>
<tr><td><a href="#intValueList(org.opengis.parameter.ParameterDescriptor)"><code>intValueList(ParameterDescriptor)</code></a></td> <td><a href="DefaultParameterValue.html#intValueList()"><code>intValueList()</code></a></td> <td></td></tr>
<tr><td><a href="#doubleValue(org.opengis.parameter.ParameterDescriptor)"><code>doubleValue(ParameterDescriptor)</code></a></td> <td><a href="DefaultParameterValue.html#doubleValue()"><code>doubleValue()</code></a></td> <td><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Number.html?is-external=true#doubleValue()" title="class or interface in java.lang" class="externalLink"><code>Number.doubleValue()</code></a></td></tr>
<tr><td><a href="#doubleValueList(org.opengis.parameter.ParameterDescriptor)"><code>doubleValueList(ParameterDescriptor)</code></a></td> <td><a href="DefaultParameterValue.html#doubleValueList()"><code>doubleValueList()</code></a></td> <td></td></tr>
<tr><td><a href="#stringValue(org.opengis.parameter.ParameterDescriptor)"><code>stringValue(ParameterDescriptor)</code></a></td> <td><a href="DefaultParameterValue.html#stringValue()"><code>stringValue()</code></a></td> <td></td></tr>
</table>
<div class="section">Fetching parameter values despite different names, types or units</div>
The common way to get a parameter is to invoke the <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true#parameter(java.lang.String)" title="class or interface in org.opengis.parameter" class="externalLink"><code>Parameter­Value­Group​.parameter(String)</code></a> method.
This <code>Parameters</code> class provides alternative ways, using a <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink"><code>Parameter­Descriptor</code></a> argument
instead than a <code>String</code> argument. Those descriptors provide additional information like the various
<a href="../referencing/AbstractIdentifiedObject.html#getAlias()">aliases</a> under which the same parameter may be known.
By using this information, <code>Parameters</code> can choose the most appropriate parameter name or alias
(by searching for a common <a href="../referencing/ImmutableIdentifier.html#getAuthority()">authority</a>)
when it delegates its work to the <code>parameter(String)</code> method.
<div class="note"><b>Example:</b>
The same parameter may be known under different names. For example the
<a href="../referencing/datum/DefaultEllipsoid.html#getSemiMajorAxis()">length of the semi-major axis of the ellipsoid</a> is commonly known as <code>"semi_major"</code>.
But that parameter can also be named <code>"semi_major_axis"</code>, <code>"earth_radius"</code> or simply <code>"a"</code>
in other libraries. When fetching parameter values, we do not always know in advance which of the above-cited
names is recognized by an arbitrary <code>Parameter­Value­Group</code> instance.</div>
<code>Parameters</code> uses also the descriptor information for applying type and unit conversions
(i.e. returned values are converted to the units of measurement specified by the given parameter descriptor).
<div class="section">Note for subclass implementers</div>
This class does not implement any method from the <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink"><code>Parameter­Value­Group</code></a> interface
(this class is not named “<code>Abstract­Parameter­Value­Group</code>” for that reason).
Extending this class or extending <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink"><code>Object</code></a> make almost no difference for implementers;
<code>Parameters</code> purpose is mostly to extend the API for users convenience.
All methods in this class get their information from the <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink"><code>Parameter­Value­Group</code></a> methods.
In addition, unless otherwise specified, methods in this class is isolated from all others:
overriding one method has no impact on other methods.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.4</dd>
<p><font size="-1">Defined in the <code>sis-referencing</code> module</font></p>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier</th>
<th class="colSecond" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
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<td class="colFirst"><code>protected </code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">Parameters</a></span>()</code></th>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#booleanValue(org.opengis.parameter.ParameterDescriptor)">booleanValue</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;&nbsp;parameter)</code></th>
<td class="colLast">
<div class="block">Returns the boolean value of the parameter identified by the given descriptor.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static &lt;T&gt;&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;T&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#cast(org.opengis.parameter.ParameterDescriptor,java.lang.Class)">cast</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;?&gt;&nbsp;descriptor,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a>&lt;T&gt;&nbsp;valueClass)</code></th>
<td class="colLast">
<div class="block">Casts the given parameter descriptor to the given type.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static &lt;T&gt;&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValue</a>&lt;T&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#cast(org.opengis.parameter.ParameterValue,java.lang.Class)">cast</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValue</a>&lt;?&gt;&nbsp;parameter,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a>&lt;T&gt;&nbsp;valueClass)</code></th>
<td class="colLast">
<div class="block">Casts the given parameter value to the given type.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static <a href="Parameters.html" title="class in org.apache.sis.parameter">Parameters</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#castOrWrap(org.opengis.parameter.ParameterValueGroup)">castOrWrap</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValueGroup</a>&nbsp;parameters)</code></th>
<td class="colLast">
<div class="block">Returns the given parameter value group as a <code>Parameters</code> instance.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="Parameters.html" title="class in org.apache.sis.parameter">Parameters</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#clone()">clone</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns a copy of this group of parameter values.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#copy(org.opengis.parameter.ParameterValueGroup,org.opengis.parameter.ParameterValueGroup)">copy</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValueGroup</a>&nbsp;values,
<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValueGroup</a>&nbsp;destination)</code></th>
<td class="colLast">
<div class="block">Copies the values of a parameter group into another parameter group.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#doubleValue(org.opengis.parameter.ParameterDescriptor)">doubleValue</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Number.html?is-external=true" title="class or interface in java.lang" class="externalLink">Number</a>&gt;&nbsp;parameter)</code></th>
<td class="colLast">
<div class="block">Returns the floating point value of the parameter identified by the given descriptor.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>double[]</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#doubleValueList(org.opengis.parameter.ParameterDescriptor)">doubleValueList</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;double[]&gt;&nbsp;parameter)</code></th>
<td class="colLast">
<div class="block">Returns the floating point values of the parameter identified by the given descriptor.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/GeneralParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">GeneralParameterDescriptor</a>[]</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getDescriptors(org.opengis.parameter.GeneralParameterValue...)">getDescriptors</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/GeneralParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">GeneralParameterValue</a>...&nbsp;parameters)</code></th>
<td class="colLast">
<div class="block">Returns the descriptors of the given parameters, in the same order.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMandatoryValue(org.opengis.parameter.ParameterDescriptor)">getMandatoryValue</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;T&gt;&nbsp;parameter)</code></th>
<td class="colLast">
<div class="block">Returns the value of the parameter identified by the given descriptor, or throws an exception if none.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>static <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/util/MemberName.html?is-external=true" title="class or interface in org.opengis.util" class="externalLink">MemberName</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMemberName(org.opengis.parameter.ParameterDescriptor)">getMemberName</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;?&gt;&nbsp;parameter)</code></th>
<td class="colLast">
<div class="block">Gets the parameter name as an instance of <code>Member­Name</code>.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>&lt;T&gt;&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValue</a>&lt;T&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOrCreate(org.opengis.parameter.ParameterDescriptor)">getOrCreate</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;T&gt;&nbsp;parameter)</code></th>
<td class="colLast">
<div class="block">Returns the parameter identified by the given descriptor.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getValue(org.opengis.parameter.ParameterDescriptor)">getValue</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;T&gt;&nbsp;parameter)</code></th>
<td class="colLast">
<div class="block">Returns the value of the parameter identified by the given descriptor, or <code>null</code> if none.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>static <a href="../measure/Range.html" title="class in org.apache.sis.measure">Range</a>&lt;?&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getValueDomain(org.opengis.parameter.ParameterDescriptor)">getValueDomain</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;?&gt;&nbsp;descriptor)</code></th>
<td class="colLast">
<div class="block">Returns the domain of valid values defined by the given descriptor, or <code>null</code> if none.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#intValue(org.opengis.parameter.ParameterDescriptor)">intValue</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Number.html?is-external=true" title="class or interface in java.lang" class="externalLink">Number</a>&gt;&nbsp;parameter)</code></th>
<td class="colLast">
<div class="block">Returns the integer value of the parameter identified by the given descriptor.</div>
</td>
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<tr id="i15" class="rowColor">
<td class="colFirst"><code>int[]</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#intValueList(org.opengis.parameter.ParameterDescriptor)">intValueList</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;int[]&gt;&nbsp;parameter)</code></th>
<td class="colLast">
<div class="block">Returns the integer values of the parameter identified by the given descriptor.</div>
</td>
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<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#print()">print</a></span>()</code></th>
<td class="colLast">
<div class="block">Prints a string representation of this group to the <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/System.html?is-external=true#out" title="class or interface in java.lang" class="externalLink">standard output stream</a>.</div>
</td>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#stringValue(org.opengis.parameter.ParameterDescriptor)">stringValue</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang" class="externalLink">CharSequence</a>&gt;&nbsp;parameter)</code></th>
<td class="colLast">
<div class="block">Returns the string value of the parameter identified by the given descriptor.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns a string representation of this group.</div>
</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>static <a href="Parameters.html" title="class in org.apache.sis.parameter">Parameters</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#unmodifiable(org.opengis.parameter.ParameterValueGroup)">unmodifiable</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValueGroup</a>&nbsp;parameters)</code></th>
<td class="colLast">
<div class="block">Returns the given parameter value group as an unmodifiable <code>Parameters</code> instance.</div>
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<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">get­Class</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hash­Code</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notify­All</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValueGroup</a></h3>
<code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true#addGroup(java.lang.String)" title="class or interface in org.opengis.parameter" class="externalLink">add­Group</a>, <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true#getDescriptor()" title="class or interface in org.opengis.parameter" class="externalLink">get­Descriptor</a>, <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true#groups(java.lang.String)" title="class or interface in org.opengis.parameter" class="externalLink">groups</a>, <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true#parameter(java.lang.String)" title="class or interface in org.opengis.parameter" class="externalLink">parameter</a>, <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true#values()" title="class or interface in org.opengis.parameter" class="externalLink">values</a></code></li>
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<h4>Parameters</h4>
<pre>protected&nbsp;Parameters()</pre>
<div class="block">For subclass constructors only.</div>
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<pre class="methodSignature">public static&nbsp;<a href="Parameters.html" title="class in org.apache.sis.parameter">Parameters</a>&nbsp;unmodifiable&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValueGroup</a>&nbsp;parameters)</pre>
<div class="block">Returns the given parameter value group as an unmodifiable <code>Parameters</code> instance.
If the given parameters is already an unmodifiable instance of <code>Parameters</code>,
then it is returned as-is. Otherwise this method copies all parameter values in a new,
unmodifiable, parameter group instance.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameters</code> - the parameters to make unmodifiable, or <code>null</code>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an unmodifiable group with the same parameters than the given group,
or <code>null</code> if the given argument was null.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.7</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="DefaultParameterValue.html#unmodifiable(org.opengis.parameter.ParameterValue)"><code>Default­Parameter­Value​.unmodifiable(Parameter­Value)</code></a></dd>
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<pre class="methodSignature">public static&nbsp;<a href="Parameters.html" title="class in org.apache.sis.parameter">Parameters</a>&nbsp;castOrWrap&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValueGroup</a>&nbsp;parameters)</pre>
<div class="block">Returns the given parameter value group as a <code>Parameters</code> instance.
If the given parameters is already an instance of <code>Parameters</code>, then it is returned as-is.
Otherwise this method returns a wrapper which delegate all method invocations to the given instance.
<p>This method provides a way to get access to the non-static <code>Parameters</code> methods, like
<a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a>, for an arbitrary <code>Parameter­Value­Group</code> instance.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameters</code> - the object to cast or wrap, or <code>null</code>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the given argument as an instance of <code>Parameters</code> (may be the same reference),
or <code>null</code> if the given argument was null.</dd>
</dl>
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<pre class="methodSignature">public static&nbsp;&lt;T&gt;&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;T&gt;&nbsp;cast&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;?&gt;&nbsp;descriptor,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a>&lt;T&gt;&nbsp;valueClass)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassCastException.html?is-external=true" title="class or interface in java.lang" class="externalLink">ClassCastException</a></pre>
<div class="block">Casts the given parameter descriptor to the given type.
An exception is thrown immediately if the parameter does not have the expected
<a href="DefaultParameterDescriptor.html#getValueClass()">value class</a>.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the expected value class.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>descriptor</code> - the descriptor to cast, or <code>null</code>.</dd>
<dd><code>value­Class</code> - the expected value class.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the descriptor casted to the given value class, or <code>null</code> if the given descriptor was null.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassCastException.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class­Cast­Exception</a></code> - if the given descriptor does not have the expected value class.</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true#cast(java.lang.Object)" title="class or interface in java.lang" class="externalLink"><code>Class​.cast(Object)</code></a></dd>
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<pre class="methodSignature">public static&nbsp;&lt;T&gt;&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValue</a>&lt;T&gt;&nbsp;cast&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValue</a>&lt;?&gt;&nbsp;parameter,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a>&lt;T&gt;&nbsp;valueClass)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassCastException.html?is-external=true" title="class or interface in java.lang" class="externalLink">ClassCastException</a></pre>
<div class="block">Casts the given parameter value to the given type.
An exception is thrown immediately if the parameter does not have the expected value class.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the expected value class.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the parameter to cast, or <code>null</code>.</dd>
<dd><code>value­Class</code> - the expected value class.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the value casted to the given type, or <code>null</code> if the given value was null.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassCastException.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class­Cast­Exception</a></code> - if the given value doesn't have the expected value class.</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true#cast(java.lang.Object)" title="class or interface in java.lang" class="externalLink"><code>Class​.cast(Object)</code></a></dd>
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<pre class="methodSignature">public static&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/GeneralParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">GeneralParameterDescriptor</a>[]&nbsp;getDescriptors&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/GeneralParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">GeneralParameterValue</a>...&nbsp;parameters)</pre>
<div class="block">Returns the descriptors of the given parameters, in the same order.
Special cases:
<ul>
<li>If the given array is <code>null</code>, then this method returns <code>null</code>.
<li>If an element of the given array is <code>null</code>, then the corresponding
element of the returned array is also <code>null</code>.</li>
</ul></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameters</code> - the parameter values from which to get the descriptors, or <code>null</code>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the descriptors of the given parameter values, or <code>null</code> if the <code>parameters</code> argument was null.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.6</dd>
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<pre class="methodSignature">public static&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/util/MemberName.html?is-external=true" title="class or interface in org.opengis.util" class="externalLink">MemberName</a>&nbsp;getMemberName&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;?&gt;&nbsp;parameter)</pre>
<div class="block">Gets the parameter name as an instance of <code>Member­Name</code>.
This method performs the following checks:
<ul>
<li>If the <a href="../referencing/AbstractIdentifiedObject.html#getName()">primary name</a> is an instance of <code>Member­Name</code>,
returns that primary name.</li>
<li>Otherwise this method searches for the first <a href="../referencing/AbstractIdentifiedObject.html#getAlias()">alias</a>
which is an instance of <code>Member­Name</code>. If found, that alias is returned.</li>
<li>If no alias is found, then this method tries to build a member name from the primary name and the
<a href="DefaultParameterDescriptor.html#getValueClass()">value class</a>, using the mapping defined in
<a href="../util/iso/DefaultTypeName.html" title="class in org.apache.sis.util.iso"><code>Default­Type­Name</code></a> javadoc.</li>
</ul>
This method can be used as a bridge between the parameter object
defined by ISO 19111 (namely <code>CC_Operation­Parameter</code>) and the one
defined by ISO 19115 (namely <code>SV_Parameter</code>).</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the parameter from which to get the name (may be <code>null</code>).</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the member name, or <code>null</code> if none.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.5</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../util/iso/Names.html#createMemberName(java.lang.CharSequence,java.lang.String,java.lang.CharSequence,java.lang.Class)"><code>Names​.create­Member­Name(Char­Sequence, String, Char­Sequence, Class)</code></a></dd>
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<pre class="methodSignature">public static&nbsp;<a href="../measure/Range.html" title="class in org.apache.sis.measure">Range</a>&lt;?&gt;&nbsp;getValueDomain&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;?&gt;&nbsp;descriptor)</pre>
<div class="block">Returns the domain of valid values defined by the given descriptor, or <code>null</code> if none.
This method performs the following operations:
<ul>
<li>If the given parameter is an instance of <code>Default­Parameter­Descriptor</code>,
delegate to <a href="DefaultParameterDescriptor.html#getValueDomain()"><code>Default­Parameter­Descriptor​.get­Value­Domain()</code></a>.</li>
<li>Otherwise builds the range from the <a href="DefaultParameterDescriptor.html#getMinimumValue()">minimum value</a>,
<a href="DefaultParameterDescriptor.html#getMaximumValue()">maximum value</a> and, if the values are numeric, from
the <a href="DefaultParameterDescriptor.html#getUnit()">unit</a>.</li>
</ul></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>descriptor</code> - the parameter descriptor, or <code>null</code>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the domain of valid values, or <code>null</code> if none.</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="DefaultParameterDescriptor.html#getValueDomain()"><code>Default­Parameter­Descriptor​.get­Value­Domain()</code></a></dd>
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<h4>getValue</h4>
<pre class="methodSignature">public&nbsp;&lt;T&gt;&nbsp;T&nbsp;getValue&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;T&gt;&nbsp;parameter)
throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterNotFoundException</a></pre>
<div class="block">Returns the value of the parameter identified by the given descriptor, or <code>null</code> if none.
This method uses the following information from the given <code>parameter</code> descriptor:
<ul>
<li>The most appropriate <a href="../referencing/AbstractIdentifiedObject.html#getName()">name</a> or
<a href="../referencing/AbstractIdentifiedObject.html#getAlias()">alias</a> to use for searching
in this <code>Parameter­Value­Group</code>, chosen as below:
<ul>
<li>a name or alias defined by the same
<a href="../referencing/ImmutableIdentifier.html#getAuthority()">authority</a>, if any;</li>
<li>an arbitrary name or alias otherwise.</li>
</ul>
</li>
<li>The <a href="DefaultParameterDescriptor.html#getDefaultValue()">default value</a>
to return if there is no value associated to the above-cited name or alias.</li>
<li>The <a href="DefaultParameterDescriptor.html#getUnit()">unit of measurement</a>
(if any) of numerical value to return.</li>
<li>The <a href="DefaultParameterDescriptor.html#getValueClass()">type</a> of value to return.</li>
</ul>
This method can be useful when the <code>Parameter­Descriptor</code> are known in advance, for example in the
implementation of some <a href="../referencing/operation/DefaultOperationMethod.html" title="class in org.apache.sis.referencing.operation">coordinate
operation method</a>. If the caller has no such <code>Parameter­Descriptor</code> at hand, then the
<a href="DefaultParameterValueGroup.html#parameter(java.lang.String)"><code>parameter(String)</code></a> method is probably more convenient.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the type of the parameter value.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the name or alias of the parameter to look for, together with the desired type and unit of value.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the requested parameter value if it exists, or the <a href="DefaultParameterDescriptor.html#getDefaultValue()">default value</a> otherwise (which may be <code>null</code>).</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Not­Found­Exception</a></code> - if the given <code>parameter</code> name or alias is not legal for this group.</dd>
<dd><code><a href="../util/UnconvertibleObjectException.html" title="class in org.apache.sis.util">Unconvertible­Object­Exception</a></code> - if the parameter value can not be converted to the expected type.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.6</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="#getMandatoryValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Mandatory­Value(Parameter­Descriptor)</code></a>,
<a href="#getOrCreate(org.opengis.parameter.ParameterDescriptor)"><code>get­Or­Create(Parameter­Descriptor)</code></a>,
<a href="DefaultParameterValueGroup.html#parameter(java.lang.String)"><code>Default­Parameter­Value­Group​.parameter(String)</code></a>,
<a href="DefaultParameterValue.html#getValue()"><code>Default­Parameter­Value​.get­Value()</code></a></dd>
</dl>
</li>
</ul>
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<pre class="methodSignature">public&nbsp;&lt;T&gt;&nbsp;T&nbsp;getMandatoryValue&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;T&gt;&nbsp;parameter)
throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterNotFoundException</a></pre>
<div class="block">Returns the value of the parameter identified by the given descriptor, or throws an exception if none.
The default implementation performs the same work than <a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a> and verifies
that the returned value is non-null.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the type of the parameter value.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the name or alias of the parameter to look for, together with the desired type and unit of value.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the requested parameter value if it exists, or the <a href="DefaultParameterDescriptor.html#getDefaultValue()">default value</a> otherwise provided that it is not <code>null</code>.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Not­Found­Exception</a></code> - if the given <code>parameter</code> name or alias is not legal for this group.</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang" class="externalLink">Illegal­State­Exception</a></code> - if the value is not defined and there is no default value.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.7</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a>,
<a href="#getOrCreate(org.opengis.parameter.ParameterDescriptor)"><code>get­Or­Create(Parameter­Descriptor)</code></a></dd>
</dl>
</li>
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<pre class="methodSignature">public&nbsp;boolean&nbsp;booleanValue&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;&nbsp;parameter)
throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterNotFoundException</a></pre>
<div class="block">Returns the boolean value of the parameter identified by the given descriptor.
See <a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a> for more information about how this
method uses the given <code>parameter</code> argument.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the name or alias of the parameter to look for.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the requested parameter value if it exists, or the <strong>non-null</strong>
<a href="DefaultParameterDescriptor.html#getDefaultValue()">default value</a> otherwise.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Not­Found­Exception</a></code> - if the given <code>parameter</code> name or alias is not legal for this group.</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang" class="externalLink">Illegal­State­Exception</a></code> - if the value is not defined and there is no default value.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.6</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="DefaultParameterValue.html#booleanValue()"><code>Default­Parameter­Value​.boolean­Value()</code></a></dd>
</dl>
</li>
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<h4>intValue</h4>
<pre class="methodSignature">public&nbsp;int&nbsp;intValue&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Number.html?is-external=true" title="class or interface in java.lang" class="externalLink">Number</a>&gt;&nbsp;parameter)
throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterNotFoundException</a></pre>
<div class="block">Returns the integer value of the parameter identified by the given descriptor.
See <a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a> for more information about how this
method uses the given <code>parameter</code> argument.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the name or alias of the parameter to look for.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the requested parameter value if it exists, or the <strong>non-null</strong>
<a href="DefaultParameterDescriptor.html#getDefaultValue()">default value</a> otherwise.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Not­Found­Exception</a></code> - if the given <code>parameter</code> name or alias is not legal for this group.</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang" class="externalLink">Illegal­State­Exception</a></code> - if the value is not defined and there is no default value.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.6</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="DefaultParameterValue.html#intValue()"><code>Default­Parameter­Value​.int­Value()</code></a></dd>
</dl>
</li>
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<pre class="methodSignature">public&nbsp;int[]&nbsp;intValueList&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;int[]&gt;&nbsp;parameter)
throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterNotFoundException</a></pre>
<div class="block">Returns the integer values of the parameter identified by the given descriptor.
See <a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a> for more information about how this
method uses the given <code>parameter</code> argument.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the name or alias of the parameter to look for.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the requested parameter values if they exist, or the <strong>non-null</strong>
<a href="DefaultParameterDescriptor.html#getDefaultValue()">default value</a> otherwise.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Not­Found­Exception</a></code> - if the given <code>parameter</code> name or alias is not legal for this group.</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang" class="externalLink">Illegal­State­Exception</a></code> - if the value is not defined and there is no default value.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.6</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="DefaultParameterValue.html#intValueList()"><code>Default­Parameter­Value​.int­Value­List()</code></a></dd>
</dl>
</li>
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<pre class="methodSignature">public&nbsp;double&nbsp;doubleValue&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Number.html?is-external=true" title="class or interface in java.lang" class="externalLink">Number</a>&gt;&nbsp;parameter)
throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterNotFoundException</a></pre>
<div class="block">Returns the floating point value of the parameter identified by the given descriptor.
See <a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a> for more information about how this method
uses the given <code>parameter</code> argument.
<p>If the given descriptor supplies a <a href="DefaultParameterDescriptor.html#getUnit()">unit of measurement</a>, then the returned value will be converted into that unit.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the name or alias of the parameter to look for.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the requested parameter value if it exists, or the <strong>non-null</strong>
<a href="DefaultParameterDescriptor.html#getDefaultValue()">default value</a> otherwise.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Not­Found­Exception</a></code> - if the given <code>parameter</code> name or alias is not legal for this group.</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang" class="externalLink">Illegal­State­Exception</a></code> - if the value is not defined and there is no default value.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.6</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="DefaultParameterValue.html#doubleValue(javax.measure.Unit)"><code>Default­Parameter­Value​.double­Value(Unit)</code></a></dd>
</dl>
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</ul>
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<pre class="methodSignature">public&nbsp;double[]&nbsp;doubleValueList&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;double[]&gt;&nbsp;parameter)
throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterNotFoundException</a></pre>
<div class="block">Returns the floating point values of the parameter identified by the given descriptor.
See <a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a> for more information about how this method
uses the given <code>parameter</code> argument.
<p>If the given descriptor supplies a <a href="DefaultParameterDescriptor.html#getUnit()">unit of measurement</a>, then the returned values will be converted into that unit.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the name or alias of the parameter to look for.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the requested parameter values if they exists, or the <strong>non-null</strong>
<a href="DefaultParameterDescriptor.html#getDefaultValue()">default value</a> otherwise.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Not­Found­Exception</a></code> - if the given <code>parameter</code> name or alias is not legal for this group.</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang" class="externalLink">Illegal­State­Exception</a></code> - if the value is not defined and there is no default value.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.6</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="DefaultParameterValue.html#doubleValueList(javax.measure.Unit)"><code>Default­Parameter­Value​.double­Value­List(Unit)</code></a></dd>
</dl>
</li>
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<pre class="methodSignature">public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;stringValue&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang" class="externalLink">CharSequence</a>&gt;&nbsp;parameter)
throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterNotFoundException</a></pre>
<div class="block">Returns the string value of the parameter identified by the given descriptor.
See <a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a> for more information about how this
method uses the given <code>parameter</code> argument.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the name or alias of the parameter to look for.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the requested parameter value if it exists, or the <strong>non-null</strong>
<a href="DefaultParameterDescriptor.html#getDefaultValue()">default value</a> otherwise.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Not­Found­Exception</a></code> - if the given <code>parameter</code> name or alias is not legal for this group.</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang" class="externalLink">Illegal­State­Exception</a></code> - if the value is not defined and there is no default value.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.6</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="DefaultParameterValue.html#stringValue()"><code>Default­Parameter­Value​.string­Value()</code></a></dd>
</dl>
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<pre class="methodSignature">public&nbsp;&lt;T&gt;&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValue</a>&lt;T&gt;&nbsp;getOrCreate&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterDescriptor.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterDescriptor</a>&lt;T&gt;&nbsp;parameter)
throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterNotFoundException</a></pre>
<div class="block">Returns the parameter identified by the given descriptor.
If the identified parameter is optional and not yet created, then it will be created now.
<p>The default implementation is equivalent to:</p>
<blockquote><pre><font color="green">return</font> <b>cast</b>(<b>parameter</b>(name), parameter.<b>getValueClass</b>());</pre></blockquote>
where <code>name</code> is a <code>parameter</code> <a href="../referencing/AbstractIdentifiedObject.html#getName()">name</a>
or <a href="../referencing/AbstractIdentifiedObject.html#getAlias()">alias</a> chosen by the same algorithm than
<a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a>.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the type of the parameter value.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameter</code> - the parameter to look for.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the requested parameter instance.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterNotFoundException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Not­Found­Exception</a></code> - if the given <code>parameter</code> name or alias is not legal for this group.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.6</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="#getValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Value(Parameter­Descriptor)</code></a>,
<a href="#getMandatoryValue(org.opengis.parameter.ParameterDescriptor)"><code>get­Mandatory­Value(Parameter­Descriptor)</code></a>,
<a href="DefaultParameterValueGroup.html#parameter(java.lang.String)"><code>Default­Parameter­Value­Group​.parameter(String)</code></a></dd>
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<pre class="methodSignature">public&nbsp;<a href="Parameters.html" title="class in org.apache.sis.parameter">Parameters</a>&nbsp;clone()</pre>
<div class="block">Returns a copy of this group of parameter values.
The default implementation performs a <em>shallow</em> copy,
but subclasses are encouraged to perform a <em>deep</em> copy.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/GeneralParameterValue.html?is-external=true#clone()" title="class or interface in org.opengis.parameter" class="externalLink">clone</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/GeneralParameterValue.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">General­Parameter­Value</a></code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true#clone()" title="class or interface in org.opengis.parameter" class="externalLink">clone</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Parameter­Value­Group</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a copy of this group of parameter values.</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="#copy(org.opengis.parameter.ParameterValueGroup,org.opengis.parameter.ParameterValueGroup)"><code>copy(Parameter­Value­Group, Parameter­Value­Group)</code></a></dd>
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<h4>copy</h4>
<pre class="methodSignature">public static&nbsp;void&nbsp;copy&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValueGroup</a>&nbsp;values,
<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/ParameterValueGroup.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">ParameterValueGroup</a>&nbsp;destination)
throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/InvalidParameterNameException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">InvalidParameterNameException</a>,
<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/InvalidParameterValueException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">InvalidParameterValueException</a></pre>
<div class="block">Copies the values of a parameter group into another parameter group.
All values in the <code>source</code> group shall be valid for the <code>destination</code> group,
but the <code>destination</code> may have more parameters.
Sub-groups are copied recursively.
<p>A typical usage of this method is for transferring values from an arbitrary implementation
to some specific implementation, or to a parameter group using a different but compatible
<a href="DefaultParameterValueGroup.html#getDescriptor()">descriptor</a>.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>values</code> - the parameters values to copy.</dd>
<dd><code>destination</code> - where to copy the values.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/InvalidParameterNameException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Invalid­Parameter­Name­Exception</a></code> - if a <code>source</code> parameter name is unknown to the <code>destination</code>.</dd>
<dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/parameter/InvalidParameterValueException.html?is-external=true" title="class or interface in org.opengis.parameter" class="externalLink">Invalid­Parameter­Value­Exception</a></code> - if the value of a <code>source</code> parameter is invalid for the <code>destination</code>.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.5</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="#clone()"><code>clone()</code></a></dd>
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<h4>toString</h4>
<pre class="methodSignature">public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;toString()</pre>
<div class="block">Returns a string representation of this group.
The default implementation delegates to <a href="ParameterFormat.html" title="class in org.apache.sis.parameter"><code>Parameter­Format</code></a>.
<p>This method is for information purpose only and may change in future SIS version.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">to­String</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></code></dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.7</dd>
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<h4>print</h4>
<pre class="methodSignature"><a href="../util/Debug.html" title="annotation in org.apache.sis.util">@Debug</a>
public&nbsp;void&nbsp;print()</pre>
<div class="block">Prints a string representation of this group to the <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/System.html?is-external=true#out" title="class or interface in java.lang" class="externalLink">standard output stream</a>.
If a <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Console.html?is-external=true" title="class or interface in java.io" class="externalLink">console</a> is attached to the running JVM (i.e. if the application
is run from the command-line and the output is not redirected to a file) and if Apache SIS thinks
that the console supports the ANSI escape codes (a.k.a. X3.64), then a syntax coloring will be applied.
<p>This is a convenience method for debugging purpose and for console applications.</p></div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.7</dd>
</dl>
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