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| <div class="subTitle">org.apache.hadoop.hbase.coprocessor</div> |
| <h2 title="Interface CoprocessorHost.ObserverGetter" class="title">Interface CoprocessorHost.ObserverGetter<C,O></h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><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><C,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a><O>></dd> |
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| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/coprocessor/CoprocessorHost.html" title="class in org.apache.hadoop.hbase.coprocessor">CoprocessorHost</a><<a href="../../../../../org/apache/hadoop/hbase/coprocessor/CoprocessorHost.html" title="type parameter in CoprocessorHost">C</a> extends <a href="../../../../../org/apache/hadoop/hbase/Coprocessor.html" title="interface in org.apache.hadoop.hbase">Coprocessor</a>,<a href="../../../../../org/apache/hadoop/hbase/coprocessor/CoprocessorHost.html" title="type parameter in CoprocessorHost">E</a> extends <a href="../../../../../org/apache/hadoop/hbase/CoprocessorEnvironment.html" title="interface in org.apache.hadoop.hbase">CoprocessorEnvironment</a><<a href="../../../../../org/apache/hadoop/hbase/coprocessor/CoprocessorHost.html" title="type parameter in CoprocessorHost">C</a>>></dd> |
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| <dd>This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.</dd> |
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| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/FunctionalInterface.html?is-external=true" title="class or interface in java.lang">@FunctionalInterface</a> |
| public static interface <a href="../../../../../src-html/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.html#line.503">CoprocessorHost.ObserverGetter</a><C,O> |
| extends <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><C,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a><O>></pre> |
| <div class="block">Implementations defined function to get an observer of type <code>O</code> from a coprocessor of |
| type <code>C</code>. Concrete implementations of CoprocessorHost define one getter for each |
| observer they can handle. For e.g. RegionCoprocessorHost will use 3 getters, one for |
| each of RegionObserver, EndpointObserver and BulkLoadObserver. |
| These getters are used by <code>ObserverOperation</code> to get appropriate observer from the |
| coprocessor.</div> |
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| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true#andThen-java.util.function.Function-" title="class or interface in java.util.function">andThen</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true#apply-T-" title="class or interface in java.util.function">apply</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true#compose-java.util.function.Function-" title="class or interface in java.util.function">compose</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true#identity--" title="class or interface in java.util.function">identity</a></code></li> |
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