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| <div class="subTitle">org.apache.juneau.assertions</div> |
| <h2 title="Class AssertionPredicate" class="title">Class AssertionPredicate<T></h2> |
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| <ul class="inheritance"> |
| <li>org.apache.juneau.assertions.AssertionPredicate<T></li> |
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| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - the type of input being tested.</dd> |
| </dl> |
| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true" title="class or interface in java.util.function">Predicate</a><T></dd> |
| </dl> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../org/apache/juneau/assertions/AssertionPredicate.And.html" title="class in org.apache.juneau.assertions">AssertionPredicate.And</a>, <a href="../../../../org/apache/juneau/assertions/AssertionPredicate.Not.html" title="class in org.apache.juneau.assertions">AssertionPredicate.Not</a>, <a href="../../../../org/apache/juneau/assertions/AssertionPredicate.Or.html" title="class in org.apache.juneau.assertions">AssertionPredicate.Or</a></dd> |
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| <pre>public class <a href="../../../../src-html/org/apache/juneau/assertions/AssertionPredicate.html#line.56">AssertionPredicate</a><T> |
| 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">Object</a> |
| implements <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true" title="class or interface in java.util.function">Predicate</a><T></pre> |
| <div class="block">Wrapper around a <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true" title="class or interface in java.util.function"><code>Predicate</code></a> that allows for an error message for when the predicate fails. |
| |
| <p> |
| Typically used wherever predicates are allowed for testing of <a href="../../../../org/apache/juneau/assertions/Assertion.html" title="class in org.apache.juneau.assertions"><code>Assertion</code></a> objects such as... |
| <ul> |
| <li><a href="../../../../org/apache/juneau/assertions/FluentObjectAssertion.html#is-java.util.function.Predicate-"><code>FluentObjectAssertion.is(Predicate)</code></a> |
| <li><a href="../../../../org/apache/juneau/assertions/FluentArrayAssertion.html#is-java.util.function.Predicate...-"><code>FluentArrayAssertion.is(Predicate...)</code></a> |
| <li><a href="../../../../org/apache/juneau/assertions/FluentPrimitiveArrayAssertion.html#is-java.util.function.Predicate...-"><code>FluentPrimitiveArrayAssertion.is(Predicate...)</code></a> |
| <li><a href="../../../../org/apache/juneau/assertions/FluentListAssertion.html#isEach-java.util.function.Predicate...-"><code>FluentListAssertion.isEach(Predicate...)</code></a> |
| </ul> |
| |
| <p> |
| See <a href="../../../../org/apache/juneau/assertions/AssertionPredicates.html" title="class in org.apache.juneau.assertions"><code>AssertionPredicates</code></a> for a set of predefined predicates for common use cases. |
| |
| <h5 class='section'>Example:</h5> |
| <p class='bjava'> |
| <jc>// Asserts that a bean passes a custom test.</jc> |
| <jc>// AssertionError with specified message is thrown otherwise.</jc> |
| Predicate<MyBean> <jv>predicate</jv> = <jk>new</jk> AssertionPredicate<MyBean>( |
| <jv>x</jv> -> <jv>x</jv>.getFoo().equals(<js>"bar"</js>), |
| <js>"Foo did not equal bar. Bean was=''{0}''"</js>, |
| <jsf>VALUE</jsf> |
| ); |
| <jsm>assertObject</jsm>(<jv>myBean</jv>).is(<jv>predicate</jv>); |
| </p> |
| |
| <ul class='seealso'> |
| <li class='link'><a class='doclink' href='../../../../overview-summary.html#juneau-marshall.jm.FluentAssertions'>Overview > juneau-marshall > Fluent Assertions</a> |
| <li class='extlink'><a class='doclink' target='_blank' href='https://github.com/apache/juneau/blob/master/juneau-core/juneau-marshall/src/main/java/org/apache/juneau/assertions/AssertionPredicate.java'>Source</a> |
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| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/assertions/AssertionPredicate.And.html" title="class in org.apache.juneau.assertions">AssertionPredicate.And</a><<a href="../../../../org/apache/juneau/assertions/AssertionPredicate.And.html" title="type parameter in AssertionPredicate.And">T</a>></span></code> |
| <div class="block">Encapsulates multiple predicates into a single AND operation.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/assertions/AssertionPredicate.Not.html" title="class in org.apache.juneau.assertions">AssertionPredicate.Not</a><<a href="../../../../org/apache/juneau/assertions/AssertionPredicate.Not.html" title="type parameter in AssertionPredicate.Not">T</a>></span></code> |
| <div class="block">Negates an assertion.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/assertions/AssertionPredicate.Or.html" title="class in org.apache.juneau.assertions">AssertionPredicate.Or</a><<a href="../../../../org/apache/juneau/assertions/AssertionPredicate.Or.html" title="type parameter in AssertionPredicate.Or">T</a>></span></code> |
| <div class="block">Encapsulates multiple predicates into a single OR operation.</div> |
| </td> |
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| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function">Function</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/assertions/AssertionPredicate.html#VALUE">VALUE</a></span></code> |
| <div class="block">Argument placeholder for tested value.</div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/assertions/AssertionPredicate.html#AssertionPredicate-java.util.function.Predicate-java.lang.String-java.lang.Object...-">AssertionPredicate</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true" title="class or interface in java.util.function">Predicate</a><<a href="../../../../org/apache/juneau/assertions/AssertionPredicate.html" title="type parameter in AssertionPredicate">T</a>> inner, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> message, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>... args)</code> |
| <div class="block">Constructor.</div> |
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| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/assertions/AssertionPredicate.html#getFailureMessage--">getFailureMessage</a></span>()</code> |
| <div class="block">Returns the error message from the last call to this assertion.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/juneau/assertions/AssertionPredicate.html#test-T-">test</a></span>(<a href="../../../../org/apache/juneau/assertions/AssertionPredicate.html" title="type parameter in AssertionPredicate">T</a> t)</code> </td> |
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| <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">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">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">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">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">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">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">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">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">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">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">wait</a></code></li> |
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| <h3>Methods inherited from interface java.util.function.<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true" title="class or interface in java.util.function">Predicate</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true#and-java.util.function.Predicate-" title="class or interface in java.util.function">and</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true#isEqual-java.lang.Object-" title="class or interface in java.util.function">isEqual</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true#negate--" title="class or interface in java.util.function">negate</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true#or-java.util.function.Predicate-" title="class or interface in java.util.function">or</a></code></li> |
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| <a name="VALUE"> |
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| <h4>VALUE</h4> |
| <pre>public static final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function">Function</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> <a href="../../../../src-html/org/apache/juneau/assertions/AssertionPredicate.html#line.65">VALUE</a></pre> |
| <div class="block">Argument placeholder for tested value.</div> |
| </li> |
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| <h4>AssertionPredicate</h4> |
| <pre>public <a href="../../../../src-html/org/apache/juneau/assertions/AssertionPredicate.html#line.93">AssertionPredicate</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true" title="class or interface in java.util.function">Predicate</a><<a href="../../../../org/apache/juneau/assertions/AssertionPredicate.html" title="type parameter in AssertionPredicate">T</a>> inner, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> message, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>... args)</pre> |
| <div class="block">Constructor.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>inner</code> - The predicate test.</dd> |
| <dd><code>message</code> - The error message if predicate fails. |
| <br>Supports <a href="https://docs.oracle.com/javase/8/docs/api/java/text/MessageFormat.html?is-external=true" title="class or interface in java.text"><code>MessageFormat</code></a>-style arguments.</dd> |
| <dd><code>args</code> - Optional message arguments. |
| <br>Can contain <a href="../../../../org/apache/juneau/assertions/AssertionPredicate.html#VALUE"><code>VALUE</code></a> to specify the value itself as an argument. |
| <br>Can contain <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function"><code>functions</code></a> to apply to the tested value.</dd> |
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| <h4>test</h4> |
| <pre>public boolean <a href="../../../../src-html/org/apache/juneau/assertions/AssertionPredicate.html#line.119">test</a>(<a href="../../../../org/apache/juneau/assertions/AssertionPredicate.html" title="type parameter in AssertionPredicate">T</a> t)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true#test-T-" title="class or interface in java.util.function">test</a></code> in interface <code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true" title="class or interface in java.util.function">Predicate</a><<a href="../../../../org/apache/juneau/assertions/AssertionPredicate.html" title="type parameter in AssertionPredicate">T</a>></code></dd> |
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| <h4>getFailureMessage</h4> |
| <pre>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../src-html/org/apache/juneau/assertions/AssertionPredicate.html#line.149">getFailureMessage</a>()</pre> |
| <div class="block">Returns the error message from the last call to this assertion.</div> |
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| <dd>The error message, or <jk>null</jk> if there was no failure.</dd> |
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