org.apache.sis.referencing/org/apache/sis/parameter/ParameterBuilder.html - sis-site - Git at Google

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 <div class="sub-title"><span class="module-label-in-type">Module</span>&nbsp;<a href="../../../../module-summary.html">org.apache.sis.referencing</a></div>
 <div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.sis.parameter</a></div>
 <h1 title="Class ParameterBuilder" class="title">Class ParameterBuilder</h1>
 </div>
 <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>
 <div class="inheritance"><a href="../referencing/Builder.html" title="class in org.apache.sis.referencing">Builder</a>&lt;<a href="ParameterBuilder.html" title="class in org.apache.sis.parameter">ParameterBuilder</a>&gt;
 <div class="inheritance">ParameterBuilder</div>
 </div>
 </div>
 <section class="class-description" id="class-description">
 <hr>
 <div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">ParameterBuilder</span>
 <span class="extends-implements">extends <a href="../referencing/Builder.html" title="class in org.apache.sis.referencing">Builder</a>&lt;<a href="ParameterBuilder.html" title="class in org.apache.sis.parameter">ParameterBuilder</a>&gt;</span></div>
 <div class="block">Helper class for <a href="DefaultParameterDescriptor.html" title="class in org.apache.sis.parameter">parameter descriptor</a> instantiations.
  This builder can be helpful to operation or process <em>providers</em> (e.g. map projection
  implementers). Operation <em>users</em> do not need this builder since they can invoke
  <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html#createValue()" title="class or interface in org.opengis.parameter" class="external-link"><code>ParameterDescriptor.createValue()</code></a> on the descriptor provided by the implementer.

  <h2 id="identification-properties-heading">Identification properties</h2>
  The following properties are cleared after a call to any <code>createXXX(…)</code> method,
  since those properties are specific to the each parameter. Other properties like codespace,
  version and multiplicity are left unchanged because they may be shared by many parameters.

  <ul class="verbose">
    <li><b><a href="../referencing/AbstractIdentifiedObject.html#getName()">Names</a>:</b>
    each parameter must have a name, which can be specified by any of the <a href="../referencing/Builder.html#addName(java.lang.CharSequence)"><code>addName(…)</code></a> methods. Parameters can optionally have an arbitrary number of aliases, which are also specified
    by the <code>addName(…)</code> methods. Each call after the first one adds an alias.</li>

    <li><b><a href="../referencing/AbstractIdentifiedObject.html#getIdentifiers()">Identifiers</a>:</b>
    parameters can also have an arbitrary number of identifiers, which are specified by any of the
    <a href="../referencing/Builder.html#addIdentifier(java.lang.String)"><code>addIdentifier(…)</code></a> methods. Like names, more than one identifier can be
    added by invoking the method many time.</li>

    <li><b><a href="../referencing/AbstractIdentifiedObject.html#getRemarks()">Remarks</a>:</b>
    parameters can have at most one remark, which is specified by the <code>setRemarks(…)</code> method.</li>
  </ul>


  <h2 id="usage-example-heading">Usage example</h2>
  Parameter descriptors are typically grouped in a <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link"><code>ParameterDescriptorGroup</code></a>.
  All parameters usually have the same namespace, which can be declared only once.
  The following example creates parameters for <cite>"Mercator (variant A)"</cite>
  projection method (EPSG:9804), previously known as <cite>"Mercator (1SP)"</cite>,
  centered by default on (0°,0°) with no scale factor and no false easting/northing.
  The projection is valid from 80°S to 84°N and on all the longitude range (±180°).
  In this example, the <cite>"Longitude of natural origin"</cite> parameter is giving different aliases
  for illustrating the case of different software libraries or standards using different conventions.


 <div class="snippet-container"><button class="copy snippet-copy" aria-label="Copy snippet" onclick="copySnippet(this)"><span data-copied="Copied!">Copy</span><img src="../../../../../copy.svg" alt="Copy snippet"></button>
 <pre class="snippet"><code class="language-java">public class MyOperation {
     public static final ParameterDescriptorGroup PARAMETERS;
     static {
         ParameterBuilder builder = new ParameterBuilder();
         builder.setCodeSpace(Citations.EPSG, "EPSG")                   // The default namespace to be used below.
                .setRequired(true);                                     // All parameters will be considered mandatory.

         // Constructs the list of parameters.
         ParameterDescriptor&lt;?&gt;[] parameters = {
             builder.addName("Latitude of natural origin")              // Name in the default namespace ("EPSG" in this example).
                    .createBounded( -80,  +84, 0, Units.DEGREE),        // Latitude of Mercator projection cannot go to the poles.

             builder.addIdentifier("8802")                              // Primary key in default namespace ("EPSG" in this example).
                    .addName("Longitude of natural origin")             // Primary name in default namespace ("EPSG" in this example).
                    .addName(Citations.OGC, "central_meridian")         // First alias in "OGC" namespace.
                    .addName(Citations.GEOTIFF, "NatOriginLong")        // Second alias in "GeoTIFF" namespace.
                    .createBounded(-180, +180, 0, Units.DEGREE),        // Projection is valid on all the longitude range (±180°).

             builder.addName("Scale factor at natural origin")
                    .createStrictlyPositive(1, Units.UNITY),

             builder.addName("False easting")
                    .create(0, Units.METRE),

             builder.addName("False northing")
                    .create(0, Units.METRE)
         };

         // Put all above parameters in a group.
         PARAMETERS = ParameterDescriptorGroup group = builder
                 .addIdentifier("9804")                                 // Defined in implicit "EPSG" namespace.
                 .addName      ("Mercator (variant A)")                 // Defined in implicit "EPSG" namespace.
                 .addName      ("Mercator (1SP)")                       // Defined in implicit "EPSG" namespace.
                 .addName      (Citations.OGC, "Mercator_1SP")          // "OGC" namespace explicitly shown by toString().
                 .addName      (Citations.GEOTIFF, "CT_Mercator")       // "GeoTIFF" namespace explicitly shown by toString().
                 .addIdentifier(Citations.GEOTIFF, "7")
                 .setRemarks   ("The “Mercator (1SP)” method name was used prior to October 2010.")
                 .createGroupForMapProjection(parameters);
     }
 }
 </code></pre>
 </div>
 </div>
 <dl class="notes">
 <dt>Since:</dt>
 <dd>0.4</dd>
 </dl>
 </section>
 <section class="summary">
 <ul class="summary-list">
 <!-- =========== FIELD SUMMARY =========== -->
 <li>
 <section class="field-summary" id="field-summary">
 <h2>Field Summary</h2>
 <div class="inherited-list">
 <h3 id="fields-inherited-from-class-Builder">Fields inherited from class&nbsp;<a href="../referencing/Builder.html" title="class in org.apache.sis.referencing">Builder</a></h3>
 <code><a href="../referencing/Builder.html#properties">properties</a></code></div>
 </section>
 </li>
 <!-- ======== CONSTRUCTOR SUMMARY ======== -->
 <li>
 <section class="constructor-summary" id="constructor-summary">
 <h2>Constructor Summary</h2>
 <div class="caption"><span>Constructors</span></div>
 <div class="summary-table two-column-summary">
 <div class="table-header col-first">Constructor</div>
 <div class="table-header col-last">Description</div>
 <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">ParameterBuilder</a>()</code></div>
 <div class="col-last even-row-color">
 <div class="block">Creates a new builder.</div>
 </div>
 <div class="col-constructor-name odd-row-color"><code><a href="#%3Cinit%3E(org.opengis.parameter.GeneralParameterDescriptor)" class="member-name-link">ParameterBuilder</a><wbr>(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/GeneralParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">GeneralParameterDescriptor</a>&nbsp;descriptor)</code></div>
 <div class="col-last odd-row-color">
 <div class="block">Creates a new builder initialized to properties of the given object.</div>
 </div>
 </div>
 </section>
 </li>
 <!-- ========== METHOD SUMMARY =========== -->
 <li>
 <section class="method-summary" id="method-summary">
 <h2>Method Summary</h2>
 <div id="method-summary-table">
 <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
 <div id="method-summary-table.tabpanel" role="tabpanel">
 <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
 <div class="table-header col-first">Modifier and Type</div>
 <div class="table-header col-second">Method</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a><wbr>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&gt;</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#create(double,javax.measure.Unit)" class="member-name-link">create</a><wbr>(double&nbsp;defaultValue,
  <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html" title="class or interface in javax.measure" class="external-link">Unit</a>&lt;?&gt;&nbsp;unit)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor for floating point values without domain restriction.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>&lt;T&gt;&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a><wbr>&lt;T&gt;</code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#create(java.lang.Class,T)" class="member-name-link">create</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a>&lt;T&gt;&nbsp;valueClass,
  T&nbsp;defaultValue)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor for values of the given type without domain restriction.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a><wbr>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&gt;</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createBounded(double,double,double,javax.measure.Unit)" class="member-name-link">createBounded</a><wbr>(double&nbsp;minimumValue,
  double&nbsp;maximumValue,
  double&nbsp;defaultValue,
  <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html" title="class or interface in javax.measure" class="external-link">Unit</a>&lt;?&gt;&nbsp;unit)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor for floating point values restricted to the given domain.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a><wbr>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>&gt;</code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createBounded(int,int,int)" class="member-name-link">createBounded</a><wbr>(int&nbsp;minimumValue,
  int&nbsp;maximumValue,
  int&nbsp;defaultValue)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor for integer values restricted to the given domain.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>&lt;T extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link">Comparable</a>&lt;? super T&gt;&gt;<br><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a><wbr>&lt;T&gt;</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createBounded(java.lang.Class,T,T,T)" class="member-name-link">createBounded</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a>&lt;T&gt;&nbsp;valueClass,
  T&nbsp;minimumValue,
  T&nbsp;maximumValue,
  T&nbsp;defaultValue)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor for values of the given type restricted to the given domain.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>&lt;T extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link">Comparable</a>&lt;? super T&gt;&gt;<br><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a><wbr>&lt;T&gt;</code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createBounded(org.apache.sis.measure.Range,T)" class="member-name-link">createBounded</a><wbr>(<a href="../../../../../org.apache.sis.util/org/apache/sis/measure/Range.html" title="class in org.apache.sis.measure">Range</a>&lt;T&gt;&nbsp;valueDomain,
  T&nbsp;defaultValue)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor for values in the domain represented by the given <code>Range</code> object.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>&lt;T&gt;&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a><wbr>&lt;T&gt;</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createEnumerated(java.lang.Class,T%5B%5D,T)" class="member-name-link">createEnumerated</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a>&lt;T&gt;&nbsp;valueClass,
  T[]&nbsp;validValues,
  T&nbsp;defaultValue)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor for a parameter restricted to a set of valid values.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createGroup(int,int,org.opengis.parameter.GeneralParameterDescriptor...)" class="member-name-link">createGroup</a><wbr>(int&nbsp;minimumOccurs,
  int&nbsp;maximumOccurs,
  <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/GeneralParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">GeneralParameterDescriptor</a>...&nbsp;parameters)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor group for the given multiplicity and parameters.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createGroup(org.opengis.parameter.GeneralParameterDescriptor...)" class="member-name-link">createGroup</a><wbr>(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/GeneralParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">GeneralParameterDescriptor</a>...&nbsp;parameters)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor group for the given parameters.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createGroupForMapProjection(org.opengis.parameter.ParameterDescriptor...)" class="member-name-link">createGroupForMapProjection</a><wbr>(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a>&lt;?&gt;...&nbsp;parameters)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor group for a map projection.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createGroupWithSameParameters(org.opengis.parameter.ParameterDescriptorGroup)" class="member-name-link">createGroupWithSameParameters</a><wbr>(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a>&nbsp;parameters)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor group with the same parameters than another group.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a><wbr>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&gt;</code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createStrictlyPositive(double,javax.measure.Unit)" class="member-name-link">createStrictlyPositive</a><wbr>(double&nbsp;defaultValue,
  <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html" title="class or interface in javax.measure" class="external-link">Unit</a>&lt;?&gt;&nbsp;unit)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates a descriptor for floating point values greater than zero.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="ParameterBuilder.html" title="class in org.apache.sis.parameter">ParameterBuilder</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#setRequired(boolean)" class="member-name-link">setRequired</a><wbr>(boolean&nbsp;required)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Sets whether the parameter is mandatory or optional.</div>
 </div>
 </div>
 </div>
 </div>
 <div class="inherited-list">
 <h3 id="methods-inherited-from-class-Builder">Methods inherited from class&nbsp;<a href="../referencing/Builder.html" title="class in org.apache.sis.referencing">Builder</a></h3>
 <code><a href="../referencing/Builder.html#addIdentifier(java.lang.String)">addIdentifier</a>, <a href="../referencing/Builder.html#addIdentifier(org.opengis.metadata.citation.Citation,java.lang.String)">addIdentifier</a>, <a href="../referencing/Builder.html#addIdentifier(org.opengis.referencing.ReferenceIdentifier)">addIdentifier</a>, <a href="../referencing/Builder.html#addName(java.lang.CharSequence)">addName</a>, <a href="../referencing/Builder.html#addName(org.opengis.metadata.citation.Citation,java.lang.CharSequence)">addName</a>, <a href="../referencing/Builder.html#addName(org.opengis.referencing.ReferenceIdentifier)">addName</a>, <a href="../referencing/Builder.html#addName(org.opengis.util.GenericName)">addName</a>, <a href="../referencing/Builder.html#addNameAndIdentifier(org.opengis.metadata.citation.Citation,org.opengis.referencing.IdentifiedObject)">addNameAndIdentifier</a>, <a href="../referencing/Builder.html#addNamesAndIdentifiers(org.opengis.referencing.IdentifiedObject)">addNamesAndIdentifiers</a>, <a href="../referencing/Builder.html#onCreate(boolean)">onCreate</a>, <a href="../referencing/Builder.html#reidentify(org.opengis.metadata.citation.Citation,java.lang.String...)">reidentify</a>, <a href="../referencing/Builder.html#rename(org.opengis.metadata.citation.Citation,java.lang.CharSequence...)">rename</a>, <a href="../referencing/Builder.html#setCodeSpace(org.opengis.metadata.citation.Citation,java.lang.String)">setCodeSpace</a>, <a href="../referencing/Builder.html#setDeprecated(boolean)">setDeprecated</a>, <a href="../referencing/Builder.html#setDescription(java.lang.CharSequence)">setDescription</a>, <a href="../referencing/Builder.html#setRemarks(java.lang.CharSequence)">setRemarks</a>, <a href="../referencing/Builder.html#setVersion(java.lang.String)">setVersion</a></code></div>
 <div class="inherited-list">
 <h3 id="methods-inherited-from-class-Object">Methods inherited from class&nbsp;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
 <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
 </section>
 </li>
 </ul>
 </section>
 <section class="details">
 <ul class="details-list">
 <!-- ========= CONSTRUCTOR DETAIL ======== -->
 <li>
 <section class="constructor-details" id="constructor-detail">
 <h2>Constructor Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="&lt;init&gt;()">
 <h3>ParameterBuilder</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">ParameterBuilder</span>()</div>
 <div class="block">Creates a new builder.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="&lt;init&gt;(org.opengis.parameter.GeneralParameterDescriptor)">
 <h3>ParameterBuilder</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">ParameterBuilder</span><wbr><span class="parameters">(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/GeneralParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">GeneralParameterDescriptor</a>&nbsp;descriptor)</span></div>
 <div class="block">Creates a new builder initialized to properties of the given object.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>descriptor</code> - the descriptor from which to inherit properties, or <code>null</code>.</dd>
 <dt>Since:</dt>
 <dd>0.6</dd>
 </dl>
 </section>
 </li>
 </ul>
 </section>
 </li>
 <!-- ============ METHOD DETAIL ========== -->
 <li>
 <section class="method-details" id="method-detail">
 <h2>Method Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="setRequired(boolean)">
 <h3>setRequired</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="ParameterBuilder.html" title="class in org.apache.sis.parameter">ParameterBuilder</a></span>&nbsp;<span class="element-name">setRequired</span><wbr><span class="parameters">(boolean&nbsp;required)</span></div>
 <div class="block">Sets whether the parameter is mandatory or optional.
  This property determines the <a href="AbstractParameterDescriptor.html#getMinimumOccurs()">minimum number
  of times</a> that values are required, which will be 0 for an optional parameter and 1 for a mandatory one.

  <p><b>Default value:</b>
  If this method is never invoked, then the default value is <code>false</code>.</p>

  <p><b>Lifetime:</b>
  this property is kept unchanged until this <code>setRequired(…)</code> method is invoked again.</p>

  <h4 id="api-note-heading">API note</h4>
  The <a href="AbstractParameterDescriptor.html#getMaximumOccurs()"><code>maximum number of occurrences</code></a> is fixed to 1 and cannot be changed with this builder
  (except for <a href="#createGroup(int,int,org.opengis.parameter.GeneralParameterDescriptor...)">parameters group</a>)
  because <a href="DefaultParameterValueGroup.html#parameter(java.lang.String)"><code>DefaultParameterValueGroup.parameter(String)</code></a> can return only one value.
  Allowing to return more than one value would complicate the API for an uncommon case.
  If nevertheless a maximum number of occurrences greater than 1 is really desired, Apache SIS supports
  this feature but users have to create the <a href="DefaultParameterDescriptor.html" title="class in org.apache.sis.parameter"><code>DefaultParameterDescriptor</code></a> instance themselves.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>required</code> - <code>true</code> for a mandatory parameter, or <code>false</code> for an optional one.</dd>
 <dt>Returns:</dt>
 <dd><code>this</code>, for method call chaining.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="create(java.lang.Class,T)">
 <h3 id="create(java.lang.Class,java.lang.Object)">create</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="type-parameters">&lt;T&gt;</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a>&lt;T&gt;</span>&nbsp;<span class="element-name">create</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a>&lt;T&gt;&nbsp;valueClass,
  T&nbsp;defaultValue)</span></div>
 <div class="block">Creates a descriptor for values of the given type without domain restriction.</div>
 <dl class="notes">
 <dt>Type Parameters:</dt>
 <dd><code>T</code> - the compile-time type of the <code>valueClass</code> argument.</dd>
 <dt>Parameters:</dt>
 <dd><code>valueClass</code> - the class that describe the type of the parameter values.</dd>
 <dd><code>defaultValue</code> - the default value for the parameter, or <code>null</code> if none.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor for the given default value and unit.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="create(double,javax.measure.Unit)">
 <h3>create</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&gt;</span>&nbsp;<span class="element-name">create</span><wbr><span class="parameters">(double&nbsp;defaultValue,
  <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html" title="class or interface in javax.measure" class="external-link">Unit</a>&lt;?&gt;&nbsp;unit)</span></div>
 <div class="block">Creates a descriptor for floating point values without domain restriction.
  All <code>double</code> values are considered valid.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>defaultValue</code> - the default value for the parameter, or <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html#NaN" title="class or interface in java.lang" class="external-link"><code>Double.NaN</code></a> if none.</dd>
 <dd><code>unit</code> - the default unit, or <code>null</code> if none.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor for the given default value and unit.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createStrictlyPositive(double,javax.measure.Unit)">
 <h3>createStrictlyPositive</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&gt;</span>&nbsp;<span class="element-name">createStrictlyPositive</span><wbr><span class="parameters">(double&nbsp;defaultValue,
  <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html" title="class or interface in javax.measure" class="external-link">Unit</a>&lt;?&gt;&nbsp;unit)</span></div>
 <div class="block">Creates a descriptor for floating point values greater than zero.
  The zero value is not considered valid. There is no maximal value.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>defaultValue</code> - the default value for the parameter, or <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html#NaN" title="class or interface in java.lang" class="external-link"><code>Double.NaN</code></a> if none.</dd>
 <dd><code>unit</code> - the default unit, or <code>null</code> if none.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor for the given default value and unit.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createBounded(double,double,double,javax.measure.Unit)">
 <h3>createBounded</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&gt;</span>&nbsp;<span class="element-name">createBounded</span><wbr><span class="parameters">(double&nbsp;minimumValue,
  double&nbsp;maximumValue,
  double&nbsp;defaultValue,
  <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html" title="class or interface in javax.measure" class="external-link">Unit</a>&lt;?&gt;&nbsp;unit)</span></div>
 <div class="block">Creates a descriptor for floating point values restricted to the given domain.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>minimumValue</code> - the minimum parameter value (inclusive), or <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html#NEGATIVE_INFINITY" title="class or interface in java.lang" class="external-link"><code>Double.NEGATIVE_INFINITY</code></a> if none.</dd>
 <dd><code>maximumValue</code> - the maximum parameter value (inclusive), or <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html#POSITIVE_INFINITY" title="class or interface in java.lang" class="external-link"><code>Double.POSITIVE_INFINITY</code></a> if none.</dd>
 <dd><code>defaultValue</code> - the default value for the parameter, or <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html#NaN" title="class or interface in java.lang" class="external-link"><code>Double.NaN</code></a> if none.</dd>
 <dd><code>unit</code> - the unit for default, minimum and maximum values, or <code>null</code> if none.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor for the given domain of values.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createBounded(int,int,int)">
 <h3>createBounded</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>&gt;</span>&nbsp;<span class="element-name">createBounded</span><wbr><span class="parameters">(int&nbsp;minimumValue,
  int&nbsp;maximumValue,
  int&nbsp;defaultValue)</span></div>
 <div class="block">Creates a descriptor for integer values restricted to the given domain.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>minimumValue</code> - the minimum parameter value (inclusive).</dd>
 <dd><code>maximumValue</code> - the maximum parameter value (inclusive).</dd>
 <dd><code>defaultValue</code> - the default value for the parameter.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor for the given domain of values.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createBounded(java.lang.Class,T,T,T)">
 <h3 id="createBounded(java.lang.Class,java.lang.Comparable,java.lang.Comparable,java.lang.Comparable)">createBounded</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="type-parameters">&lt;T extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link">Comparable</a>&lt;? super T&gt;&gt;</span>
 <span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a>&lt;T&gt;</span>&nbsp;<span class="element-name">createBounded</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a>&lt;T&gt;&nbsp;valueClass,
  T&nbsp;minimumValue,
  T&nbsp;maximumValue,
  T&nbsp;defaultValue)</span></div>
 <div class="block">Creates a descriptor for values of the given type restricted to the given domain.</div>
 <dl class="notes">
 <dt>Type Parameters:</dt>
 <dd><code>T</code> - the compile-time type of the <code>valueClass</code> argument.</dd>
 <dt>Parameters:</dt>
 <dd><code>valueClass</code> - the class that describe the type of the parameter values.</dd>
 <dd><code>minimumValue</code> - the minimum parameter value (inclusive), or <code>null</code> if none.</dd>
 <dd><code>maximumValue</code> - the maximum parameter value (inclusive), or <code>null</code> if none.</dd>
 <dd><code>defaultValue</code> - the default value for the parameter, or <code>null</code> if none.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor for the given domain of values.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createBounded(org.apache.sis.measure.Range,T)">
 <h3 id="createBounded(org.apache.sis.measure.Range,java.lang.Comparable)">createBounded</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="type-parameters">&lt;T extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link">Comparable</a>&lt;? super T&gt;&gt;</span>
 <span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a>&lt;T&gt;</span>&nbsp;<span class="element-name">createBounded</span><wbr><span class="parameters">(<a href="../../../../../org.apache.sis.util/org/apache/sis/measure/Range.html" title="class in org.apache.sis.measure">Range</a>&lt;T&gt;&nbsp;valueDomain,
  T&nbsp;defaultValue)</span></div>
 <div class="block">Creates a descriptor for values in the domain represented by the given <code>Range</code> object.
  This method allows to specify whether the minimum and maximum values are inclusive or not.</div>
 <dl class="notes">
 <dt>Type Parameters:</dt>
 <dd><code>T</code> - the type of the parameter values.</dd>
 <dt>Parameters:</dt>
 <dd><code>valueDomain</code> - the minimum value, maximum value and unit of measurement.</dd>
 <dd><code>defaultValue</code> - the default value for the parameter, or <code>null</code> if none.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor for the given domain of values.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createEnumerated(java.lang.Class,T[],T)">
 <h3 id="createEnumerated(java.lang.Class,java.lang.Object[],java.lang.Object)">createEnumerated</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="type-parameters">&lt;T&gt;</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a>&lt;T&gt;</span>&nbsp;<span class="element-name">createEnumerated</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a>&lt;T&gt;&nbsp;valueClass,
  T[]&nbsp;validValues,
  T&nbsp;defaultValue)</span></div>
 <div class="block">Creates a descriptor for a parameter restricted to a set of valid values.
  The descriptor has no minimal or maximal value and no unit.

  <p>The <code>validValues</code> property is mostly for restricting values to
  a <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/util/CodeList.html" title="class or interface in org.opengis.util" class="external-link">code list</a> or <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Enum.html" title="class or interface in java.lang" class="external-link">enumeration</a> subset.
  It is not necessary to provide this property when all values from the code list or enumeration are valid.</p></div>
 <dl class="notes">
 <dt>Type Parameters:</dt>
 <dd><code>T</code> - the compile-time type of the <code>valueClass</code> argument.</dd>
 <dt>Parameters:</dt>
 <dd><code>valueClass</code> - the class that describe the type of the parameter values.</dd>
 <dd><code>validValues</code> - a finite set of valid values (usually from a code list or enumeration)
                        or <code>null</code> if it doesn't apply.</dd>
 <dd><code>defaultValue</code> - the default value for the parameter, or <code>null</code> if none.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor for the given set of valid values.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createGroup(int,int,org.opengis.parameter.GeneralParameterDescriptor...)">
 <h3>createGroup</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a></span>&nbsp;<span class="element-name">createGroup</span><wbr><span class="parameters">(int&nbsp;minimumOccurs,
  int&nbsp;maximumOccurs,
  <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/GeneralParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">GeneralParameterDescriptor</a>...&nbsp;parameters)</span></div>
 <div class="block">Creates a descriptor group for the given multiplicity and parameters.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>minimumOccurs</code> - the <a href="AbstractParameterDescriptor.html#getMinimumOccurs()">minimum</a>
                         number of times that values for this parameter group are required.</dd>
 <dd><code>maximumOccurs</code> - the <a href="AbstractParameterDescriptor.html#getMaximumOccurs()">maximum</a>
                         number of times that values for this parameter group are required.</dd>
 <dd><code>parameters</code> - the <a href="DefaultParameterDescriptorGroup.html#descriptors()">parameter descriptors</a>
                         for the group to create.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor group.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createGroup(org.opengis.parameter.GeneralParameterDescriptor...)">
 <h3>createGroup</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a></span>&nbsp;<span class="element-name">createGroup</span><wbr><span class="parameters">(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/GeneralParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">GeneralParameterDescriptor</a>...&nbsp;parameters)</span></div>
 <div class="block">Creates a descriptor group for the given parameters. This is a convenience method for
  <a href="#createGroup(int,int,org.opengis.parameter.GeneralParameterDescriptor...)"><code>createGroup(int, int, GeneralParameterDescriptor[])</code></a> with a multiplicity of [0 … 1]
  or [1 … 1] depending on the value given to the last call to <a href="#setRequired(boolean)"><code>setRequired(boolean)</code></a>.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>parameters</code> - the <a href="DefaultParameterDescriptorGroup.html#descriptors()">parameter descriptors</a>
          for the group to create.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor group.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createGroupWithSameParameters(org.opengis.parameter.ParameterDescriptorGroup)">
 <h3>createGroupWithSameParameters</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a></span>&nbsp;<span class="element-name">createGroupWithSameParameters</span><wbr><span class="parameters">(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a>&nbsp;parameters)</span></div>
 <div class="block">Creates a descriptor group with the same parameters than another group. This is a convenience constructor
  for operations that expect the same parameters than another operation, but perform a different process.

  <h4 id="example-heading">Example</h4>
  The various <cite>"Coordinate Frame Rotation"</cite> variants (EPSG codes 1032, 1038 and 9607)
  expect the same parameters than their <cite>"Position Vector transformation"</cite> counterpart
  (EPSG codes 1033, 1037 and 9606) but perform the rotation in the opposite direction.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>parameters</code> - the existing group from which to copy the parameters.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor group.</dd>
 <dt>Since:</dt>
 <dd>0.7</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createGroupForMapProjection(org.opengis.parameter.ParameterDescriptor...)">
 <h3>createGroupForMapProjection</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a></span>&nbsp;<span class="element-name">createGroupForMapProjection</span><wbr><span class="parameters">(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptor.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptor</a>&lt;?&gt;...&nbsp;parameters)</span></div>
 <div class="block">Creates a descriptor group for a map projection. This method automatically adds mandatory parameters
  for the <cite>semi-major</cite> and <cite>semi-minor axis length</cite>. Those parameters are usually
  not explicitly included in parameter definitions since the axis lengths can be inferred from the
  <a href="../referencing/datum/DefaultEllipsoid.html" title="class in org.apache.sis.referencing.datum">ellipsoid</a>.
  However, <a href="../referencing/operation/transform/DefaultMathTransformFactory.html" title="class in org.apache.sis.referencing.operation.transform"><code>DefaultMathTransformFactory</code></a> needs them.

  <p>In addition, this method adds hidden parameters for alternative ways to express some standard parameters.
  Those hidden parameters never appear in the <a href="DefaultParameterDescriptorGroup.html#descriptors()">list
  of parameters</a>. However, when one of those parameters is read or written, the work will be delegated to the
  standard parameters.</p>

  <table class="sis">
    <caption>Parameters automatically added by this method</caption>
    <tr><th>Name</th>                         <th>Visibility</th> <th>Comment</th></tr>
    <tr><td><code>"semi_major"</code></td>         <td>Always</td>     <td>Standard parameter defined by WKT 1.</td></tr>
    <tr><td><code>"semi_minor"</code></td>         <td>Always</td>     <td>Standard parameter defined by WKT 1.</td></tr>
    <tr><td><code>"earth_radius"</code></td>       <td>Hidden</td>     <td>Mapped to <code>"semi_major"</code> and <code>"semi_minor"</code> parameters.</td></tr>
    <tr><td><code>"inverse_flattening"</code></td> <td>Hidden</td>     <td>Computed from the <code>"semi_major"</code> and <code>"semi_minor"</code> parameters.</td></tr>
    <tr><td><code>"standard_parallel"</code></td>  <td>Hidden</td>
      <td>Array of 1 or 2 elements mapped to <code>"standard_parallel_1"</code> and <code>"standard_parallel_2"</code>.</td></tr>
  </table>

  <b>Notes:</b>
  <ul>
    <li>The <code>"standard_parallel"</code> parameter descriptor is added only if the <code>parameters</code> argument
        contains <code>"standard_parallel_1"</code> and <code>"standard_parallel_2"</code> descriptors.</li>
    <li>When the <code>"earth_radius"</code> parameter is read, its value is the
        <a href="../referencing/datum/DefaultEllipsoid.html#getAuthalicRadius()">authalic radius</a>
        computed from the semi-major and semi-minor axis lengths.</li>
  </ul>

  Map projection parameter groups always have a <a href="AbstractParameterDescriptor.html#getMinimumOccurs()">minimum</a> and <a href="AbstractParameterDescriptor.html#getMaximumOccurs()">maximum occurrence</a> of 1,
  regardless the value given to <a href="#setRequired(boolean)"><code>setRequired(boolean)</code></a>.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>parameters</code> - the <a href="DefaultParameterDescriptorGroup.html#descriptors()">parameter descriptors</a>
          for the group to create.</dd>
 <dt>Returns:</dt>
 <dd>the parameter descriptor group for a map projection.</dd>
 <dt>Since:</dt>
 <dd>0.6</dd>
 </dl>
 </section>
 </li>
 </ul>
 </section>
 </li>
 </ul>
 </section>
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