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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.sis.util</a></div> |
| <h2 title="Class Utilities" class="title">Class Utilities</h2> |
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| <pre>public final class <span class="typeNameLabel">Utilities</span> |
| extends <a href="Static.html" title="class in org.apache.sis.util">Static</a></pre> |
| <div class="block">Static methods for object comparisons in different ways (deeply, approximately, <i>etc</i>).</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>0.3</dd> |
| |
| <p><font size="-1">Defined in the <code>sis-utility</code> module</font></p> |
| </dl> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#deepEquals(java.lang.Object,java.lang.Object,org.apache.sis.util.ComparisonMode)">deepEquals</a></span>​(<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> object1, |
| <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> object2, |
| <a href="ComparisonMode.html" title="enum in org.apache.sis.util">ComparisonMode</a> mode)</code></th> |
| <td class="colLast"> |
| <div class="block">Convenience method for testing two objects for equality using the given level of strictness.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#deepHashCode(java.lang.Object)">deepHashCode</a></span>​(<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> object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a hash code for the specified object, which may be an array.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <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="#deepToString(java.lang.Object)">deepToString</a></span>​(<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> object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a string representation of the specified object, which may be an array.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#equalsApproximately(java.lang.Object,java.lang.Object)">equalsApproximately</a></span>​(<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> object1, |
| <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> object2)</code></th> |
| <td class="colLast"> |
| <div class="block">Compares the specified objects for equality, ignoring metadata and slight differences |
| in numerical values.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#equalsApproximatively(java.lang.Object,java.lang.Object)">equalsApproximatively</a></span>​(<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> object1, |
| <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> object2)</code></th> |
| <td class="colLast"> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="deprecationComment">Renamed <a href="#equalsApproximately(java.lang.Object,java.lang.Object)"><code>equalsApproximately(Object, Object)</code></a>.</div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#equalsIgnoreMetadata(java.lang.Object,java.lang.Object)">equalsIgnoreMetadata</a></span>​(<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> object1, |
| <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> object2)</code></th> |
| <td class="colLast"> |
| <div class="block">Compares the specified objects for equality, ignoring metadata.</div> |
| </td> |
| </tr> |
| </table> |
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| <h3>Methods inherited from class <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></h3> |
| <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>, <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#toString()" title="class or interface in java.lang" class="externalLink">toString</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> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ METHOD DETAIL ========== --> |
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| <h3>Method Detail</h3> |
| <a id="equalsIgnoreMetadata(java.lang.Object,java.lang.Object)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>equalsIgnoreMetadata</h4> |
| <pre class="methodSignature">public static boolean equalsIgnoreMetadata​(<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> object1, |
| <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> object2)</pre> |
| <div class="block">Compares the specified objects for equality, ignoring metadata. |
| If this method returns <code>true</code>, then: |
| |
| <ul> |
| <li>If the two given objects are |
| <a href="../referencing/operation/transform/AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">math transforms</a>, |
| then transforming a set of coordinate values using one transform will produce the same |
| results than transforming the same coordinates with the other transform.</li> |
| |
| <li>If the two given objects are |
| <a href="../referencing/crs/AbstractCRS.html" title="class in org.apache.sis.referencing.crs">Coordinate Reference Systems</a> (CRS), then a call to |
| <code><a href="../referencing/CRS.html#findOperation(org.opengis.referencing.crs.CoordinateReferenceSystem,org.opengis.referencing.crs.CoordinateReferenceSystem,org.opengis.metadata.extent.GeographicBoundingBox)">findOperation</a>(crs1, crs2, null)</code> |
| will return an identity operation.</li> |
| </ul> |
| |
| If a more lenient comparison allowing slight differences in numerical values is wanted, |
| then <a href="#equalsApproximately(java.lang.Object,java.lang.Object)"><code>equalsApproximately(Object, Object)</code></a> can be used instead. |
| |
| <div class="section">Implementation note</div> |
| This is a convenience method for the following method call: |
| |
| <blockquote><pre><font color="green">return</font> <b>deepEquals</b>(object1, object2, ComparisonMode.IGNORE_METADATA);</pre></blockquote></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>object1</code> - the first object to compare (may be null).</dd> |
| <dd><code>object2</code> - the second object to compare (may be null).</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>true</code> if both objects are equal, ignoring metadata.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="#deepEquals(java.lang.Object,java.lang.Object,org.apache.sis.util.ComparisonMode)"><code>deepEquals(Object, Object, ComparisonMode)</code></a>, |
| <a href="ComparisonMode.html#IGNORE_METADATA"><code>ComparisonMode.IGNORE_METADATA</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="equalsApproximately(java.lang.Object,java.lang.Object)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>equalsApproximately</h4> |
| <pre class="methodSignature">public static boolean equalsApproximately​(<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> object1, |
| <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> object2)</pre> |
| <div class="block">Compares the specified objects for equality, ignoring metadata and slight differences |
| in numerical values. If this method returns <code>true</code>, then: |
| |
| <ul> |
| <li>If the two given objects are |
| <a href="../referencing/operation/transform/AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">math transforms</a>, |
| then transforming a set of coordinate values using one transform will produce <em>approximately</em> |
| the same results than transforming the same coordinates with the other transform.</li> |
| |
| <li>If the two given objects are |
| <a href="../referencing/crs/AbstractCRS.html" title="class in org.apache.sis.referencing.crs">Coordinate Reference Systems</a> (CRS), then a call to |
| <code><a href="../referencing/CRS.html#findOperation(org.opengis.referencing.crs.CoordinateReferenceSystem,org.opengis.referencing.crs.CoordinateReferenceSystem,org.opengis.metadata.extent.GeographicBoundingBox)">findOperation</a>(crs1, crs2, null)</code> |
| will return an operation close to identity.</li> |
| </ul> |
| |
| <div class="section">Implementation note</div> |
| This is a convenience method for the following method call: |
| |
| <blockquote><pre><font color="green">return</font> <b>deepEquals</b>(object1, object2, ComparisonMode.APPROXIMATE);</pre></blockquote></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>object1</code> - the first object to compare (may be null).</dd> |
| <dd><code>object2</code> - the second object to compare (may be null).</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>true</code> if both objects are approximately equal.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="#deepEquals(java.lang.Object,java.lang.Object,org.apache.sis.util.ComparisonMode)"><code>deepEquals(Object, Object, ComparisonMode)</code></a>, |
| <a href="ComparisonMode.html#APPROXIMATE"><code>ComparisonMode.APPROXIMATE</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="equalsApproximatively(java.lang.Object,java.lang.Object)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>equalsApproximatively</h4> |
| <pre class="methodSignature"><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang" class="externalLink">@Deprecated</a> |
| public static boolean equalsApproximatively​(<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> object1, |
| <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> object2)</pre> |
| <div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="deprecationComment">Renamed <a href="#equalsApproximately(java.lang.Object,java.lang.Object)"><code>equalsApproximately(Object, Object)</code></a>.</div> |
| </div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="https://issues.apache.org/jira/browse/SIS-440">SIS-440</a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="deepEquals(java.lang.Object,java.lang.Object,org.apache.sis.util.ComparisonMode)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>deepEquals</h4> |
| <pre class="methodSignature">public static boolean deepEquals​(<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> object1, |
| <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> object2, |
| <a href="ComparisonMode.html" title="enum in org.apache.sis.util">ComparisonMode</a> mode)</pre> |
| <div class="block">Convenience method for testing two objects for equality using the given level of strictness. |
| If at least one of the given objects implement the <a href="LenientComparable.html" title="interface in org.apache.sis.util"><code>LenientComparable</code></a> interface, then |
| the comparison is performed using the <a href="LenientComparable.html#equals(java.lang.Object,org.apache.sis.util.ComparisonMode)"><code>LenientComparable.equals(Object, ComparisonMode)</code></a> |
| method. Otherwise this method performs the same work than the |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Objects.html?is-external=true#deepEquals(java.lang.Object,java.lang.Object)" title="class or interface in java.util" class="externalLink"><code>Objects.deepEquals(Object, Object)</code></a> convenience method. |
| |
| <p>If both arguments are arrays or collections, then the elements are compared recursively.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>object1</code> - the first object to compare, or <code>null</code>.</dd> |
| <dd><code>object2</code> - the second object to compare, or <code>null</code>.</dd> |
| <dd><code>mode</code> - the strictness level of the comparison.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>true</code> if both objects are equal for the given level of strictness.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="#equalsIgnoreMetadata(java.lang.Object,java.lang.Object)"><code>equalsIgnoreMetadata(Object, Object)</code></a>, |
| <a href="#equalsApproximately(java.lang.Object,java.lang.Object)"><code>equalsApproximately(Object, Object)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="deepHashCode(java.lang.Object)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>deepHashCode</h4> |
| <pre class="methodSignature">public static int deepHashCode​(<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> object)</pre> |
| <div class="block">Returns a hash code for the specified object, which may be an array. |
| This method returns one of the following values: |
| |
| <ul> |
| <li>If the supplied object is <code>null</code>, then this method returns 0.</li> |
| <li>Otherwise if the object is an array of objects, then |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html?is-external=true#deepHashCode(java.lang.Object%5B%5D)" title="class or interface in java.util" class="externalLink"><code>Arrays.deepHashCode(Object[])</code></a> is invoked.</li> |
| <li>Otherwise if the object is an array of primitive type, then the corresponding |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html?is-external=true#hashCode(double%5B%5D)" title="class or interface in java.util" class="externalLink"><code>Arrays.hashCode(...)</code></a> method is invoked.</li> |
| <li>Otherwise <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"><code>Object.hashCode()</code></a> is invoked.</li> |
| </ul> |
| |
| This method should be invoked <strong>only</strong> if the object type is declared |
| exactly as <code>Object</code>, not as some subtype like <code>Object[]</code>, <code>String</code> or |
| <code>float[]</code>. In the later cases, use the appropriate <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html?is-external=true" title="class or interface in java.util" class="externalLink"><code>Arrays</code></a> method instead.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>object</code> - the object to compute hash code. May be <code>null</code>.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the hash code of the given object.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="deepToString(java.lang.Object)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>deepToString</h4> |
| <pre class="methodSignature">public static <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> deepToString​(<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> object)</pre> |
| <div class="block">Returns a string representation of the specified object, which may be an array. |
| This method returns one of the following values: |
| |
| <ul> |
| <li>If the object is an array of objects, then |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html?is-external=true#deepToString(java.lang.Object%5B%5D)" title="class or interface in java.util" class="externalLink"><code>Arrays.deepToString(Object[])</code></a> is invoked.</li> |
| <li>Otherwise if the object is an array of primitive type, then the corresponding |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html?is-external=true#toString(double%5B%5D)" title="class or interface in java.util" class="externalLink"><code>Arrays.toString(...)</code></a> method is invoked.</li> |
| <li>Otherwise <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true#valueOf(java.lang.Object)" title="class or interface in java.lang" class="externalLink"><code>String.valueOf(Object)</code></a> is invoked.</li> |
| </ul> |
| |
| This method should be invoked <strong>only</strong> if the object type is declared |
| exactly as <code>Object</code>, not as some subtype like <code>Object[]</code>, <code>Number</code> or |
| <code>float[]</code>. In the later cases, use the appropriate <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html?is-external=true" title="class or interface in java.util" class="externalLink"><code>Arrays</code></a> method instead.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>object</code> - the object to format as a string. May be <code>null</code>.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a string representation of the given object.</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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