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| <div class="subTitle">org.apache.ignite.cache.query</div> |
| <h2 title="Class ContinuousQuery" class="title">Class ContinuousQuery<span class='angle_bracket'><</span>K,V<span class='angle_bracket'>></span></h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/ignite/cache/query/Query.html" title="class in org.apache.ignite.cache.query">org.apache.ignite.cache.query.Query</a><span class='angle_bracket'><</span>javax.cache.Cache.Entry<span class='angle_bracket'><</span>K,V<span class='angle_bracket'>></span><span class='angle_bracket'>></span></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html" title="class in org.apache.ignite.cache.query">org.apache.ignite.cache.query.AbstractContinuousQuery</a><span class='angle_bracket'><</span>K,V<span class='angle_bracket'>></span></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.ignite.cache.query.ContinuousQuery<span class='angle_bracket'><</span>K,V<span class='angle_bracket'>></span></li> |
| </ul> |
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| <dt>All Implemented Interfaces:</dt> |
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| </dl> |
| <hr> |
| <br> |
| <pre>public final class <span class="typeNameLabel">ContinuousQuery<span class='angle_bracket'><</span>K,V<span class='angle_bracket'>></span></span> |
| extends <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html" title="class in org.apache.ignite.cache.query">AbstractContinuousQuery</a><span class='angle_bracket'><</span>K,V<span class='angle_bracket'>></span></pre> |
| <div class="block">API for configuring continuous cache queries. |
| <p> |
| Continuous queries allow registering a remote filter and a local listener |
| for cache updates. If an update event passes the filter, it will be sent to |
| the node that executed the query, and local listener will be notified. |
| <p> |
| Additionally, you can execute an initial query to get currently existing data. |
| Query can be of any type (SQL, TEXT or SCAN) and can be set via <a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#setInitialQuery-org.apache.ignite.cache.query.Query-"><code>setInitialQuery(Query)</code></a> |
| method. |
| <p> |
| Query can be executed either on all nodes in topology using <a href="../../../../../org/apache/ignite/IgniteCache.html#query-org.apache.ignite.cache.query.Query-"><code>IgniteCache.query(Query)</code></a> |
| method, or only on the local node, if <a href="../../../../../org/apache/ignite/cache/query/Query.html#setLocal-boolean-"><code>Query.setLocal(boolean)</code></a> parameter is set to <code>true</code>. |
| Note that if the query is distributed and a new node joins, it will get the remote |
| filter for the query during discovery process before it actually joins a topology, |
| so no updates will be missed. |
| <h1 class="header">Example</h1> |
| As an example, suppose we have a cache with <code>'Person'</code> objects and we need |
| to query for all people with salary above 1000. |
| <p> |
| Here is the <code>Person</code> class: |
| <pre name="code" class="java"> |
| public class Person { |
| // Name. |
| private String name; |
| |
| // Salary. |
| private double salary; |
| |
| ... |
| } |
| </pre> |
| <p> |
| You can create and execute a continuous query like so: |
| <pre name="code" class="java"> |
| // Create a new continuous query. |
| ContinuousQuery<Long, Person> qry = new ContinuousQuery<>(); |
| |
| // Initial iteration query will return all people with salary above 1000. |
| qry.setInitialQuery(new ScanQuery<>((id, p) -> p.getSalary() > 1000)); |
| |
| |
| // Callback that is called locally when update notifications are received. |
| // It simply prints out information about all created or modified records. |
| qry.setLocalListener((evts) -> { |
| for (CacheEntryEvent<? extends Long, ? extends Person> e : evts) { |
| Person p = e.getValue(); |
| |
| System.out.println(p.getFirstName() + " " + p.getLastName() + "'s salary is " + p.getSalary()); |
| } |
| }); |
| |
| // The continuous listener will be notified for people with salary above 1000. |
| qry.setRemoteFilter(evt -> evt.getValue().getSalary() > 1000); |
| |
| // Execute the query and get a cursor that iterates through the initial data. |
| QueryCursor<Cache.Entry<Long, Person>> cur = cache.query(qry); |
| </pre> |
| This will execute query on all nodes that have the cache you are working with and |
| listener will start receiving notifications for cache updates. |
| <p> |
| To stop receiving updates call <a href="../../../../../org/apache/ignite/cache/query/QueryCursor.html#close--"><code>QueryCursor.close()</code></a> method: |
| <pre name="code" class="java"> |
| cur.close(); |
| </pre> |
| Note that this works even if you didn't provide the initial query. Cursor will |
| be empty in this case, but it will still unregister listeners when <a href="../../../../../org/apache/ignite/cache/query/QueryCursor.html#close--"><code>QueryCursor.close()</code></a> |
| is called. |
| <p> |
| <a href="../../../../../org/apache/ignite/lang/IgniteAsyncCallback.html" title="annotation in org.apache.ignite.lang"><code>IgniteAsyncCallback</code></a> annotation is supported for <code>CacheEntryEventFilter</code> |
| (see <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#setRemoteFilterFactory-javax.cache.configuration.Factory-"><code>AbstractContinuousQuery.setRemoteFilterFactory(Factory)</code></a>) and <code>CacheEntryUpdatedListener</code> |
| (see <a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#setLocalListener-javax.cache.event.CacheEntryUpdatedListener-"><code>setLocalListener(CacheEntryUpdatedListener)</code></a>). |
| If a filter and/or listener are annotated with <a href="../../../../../org/apache/ignite/lang/IgniteAsyncCallback.html" title="annotation in org.apache.ignite.lang"><code>IgniteAsyncCallback</code></a> then the annotated callback |
| is executed in an async callback pool (see <a href="../../../../../org/apache/ignite/configuration/IgniteConfiguration.html#getAsyncCallbackPoolSize--"><code>IgniteConfiguration.getAsyncCallbackPoolSize()</code></a>) |
| and a notification order is kept the same as an update order for a given cache key.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/ignite/cache/query/ContinuousQueryWithTransformer.html" title="class in org.apache.ignite.cache.query"><code>ContinuousQueryWithTransformer</code></a>, |
| <a href="../../../../../org/apache/ignite/lang/IgniteAsyncCallback.html" title="annotation in org.apache.ignite.lang"><code>IgniteAsyncCallback</code></a>, |
| <a href="../../../../../org/apache/ignite/configuration/IgniteConfiguration.html#getAsyncCallbackPoolSize--"><code>IgniteConfiguration.getAsyncCallbackPoolSize()</code></a>, |
| <a href="../../../../../serialized-form.html#org.apache.ignite.cache.query.ContinuousQuery">Serialized Form</a></dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
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| <!-- =========== FIELD SUMMARY =========== --> |
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| <h3>Field Summary</h3> |
| <ul class="blockList"> |
| <li class="blockList"><a name="fields.inherited.from.class.org.apache.ignite.cache.query.AbstractContinuousQuery"> |
| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.ignite.cache.query.<a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html" title="class in org.apache.ignite.cache.query">AbstractContinuousQuery</a></h3> |
| <code><a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#DFLT_AUTO_UNSUBSCRIBE">DFLT_AUTO_UNSUBSCRIBE</a>, <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#DFLT_PAGE_SIZE">DFLT_PAGE_SIZE</a>, <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#DFLT_TIME_INTERVAL">DFLT_TIME_INTERVAL</a></code></li> |
| </ul> |
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| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#ContinuousQuery--">ContinuousQuery</a></span>()</code> |
| <div class="block">Creates new continuous query.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance 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="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>javax.cache.event.CacheEntryUpdatedListener<span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#getLocalListener--">getLocalListener</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/ignite/cache/CacheEntryEventSerializableFilter.html" title="interface in org.apache.ignite.cache">CacheEntryEventSerializableFilter</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#getRemoteFilter--">getRemoteFilter</a></span>()</code> |
| <div class="block">Gets remote filter.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#setAutoUnsubscribe-boolean-">setAutoUnsubscribe</a></span>(boolean autoUnsubscribe)</code> |
| <div class="block">Sets automatic unsubscribe flag.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#setInitialQuery-org.apache.ignite.cache.query.Query-">setInitialQuery</a></span>(<a href="../../../../../org/apache/ignite/cache/query/Query.html" title="class in org.apache.ignite.cache.query">Query</a><span class='angle_bracket'><</span>javax.cache.Cache.Entry<span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span><span class='angle_bracket'>></span> initQry)</code> |
| <div class="block">Sets initial query.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#setLocal-boolean-">setLocal</a></span>(boolean loc)</code> |
| <div class="block">Sets whether this query should be executed on a local node only.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#setLocalListener-javax.cache.event.CacheEntryUpdatedListener-">setLocalListener</a></span>(javax.cache.event.CacheEntryUpdatedListener<span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> locLsnr)</code> |
| <div class="block">Sets a local callback.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#setPageSize-int-">setPageSize</a></span>(int pageSize)</code> |
| <div class="block">Sets optional page size, if <code>0</code>, then default is used.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#setRemoteFilter-org.apache.ignite.cache.CacheEntryEventSerializableFilter-">setRemoteFilter</a></span>(<a href="../../../../../org/apache/ignite/cache/CacheEntryEventSerializableFilter.html" title="interface in org.apache.ignite.cache">CacheEntryEventSerializableFilter</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> rmtFilter)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="block"><span class="deprecationComment">Use <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#setRemoteFilterFactory-javax.cache.configuration.Factory-"><code>AbstractContinuousQuery.setRemoteFilterFactory(Factory)</code></a> instead.</span></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html#setTimeInterval-long-">setTimeInterval</a></span>(long timeInterval)</code> |
| <div class="block">Sets time interval.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.org.apache.ignite.cache.query.AbstractContinuousQuery"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.ignite.cache.query.<a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html" title="class in org.apache.ignite.cache.query">AbstractContinuousQuery</a></h3> |
| <code><a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#getInitialQuery--">getInitialQuery</a>, <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#getRemoteFilterFactory--">getRemoteFilterFactory</a>, <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#getTimeInterval--">getTimeInterval</a>, <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#isAutoUnsubscribe--">isAutoUnsubscribe</a>, <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#isIncludeExpired--">isIncludeExpired</a>, <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#setIncludeExpired-boolean-">setIncludeExpired</a>, <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#setRemoteFilterFactory-javax.cache.configuration.Factory-">setRemoteFilterFactory</a></code></li> |
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| <h3>Methods inherited from class org.apache.ignite.cache.query.<a href="../../../../../org/apache/ignite/cache/query/Query.html" title="class in org.apache.ignite.cache.query">Query</a></h3> |
| <code><a href="../../../../../org/apache/ignite/cache/query/Query.html#getPageSize--">getPageSize</a>, <a href="../../../../../org/apache/ignite/cache/query/Query.html#isLocal--">isLocal</a>, <a href="../../../../../org/apache/ignite/cache/query/Query.html#prepare-int:A-">prepare</a>, <a href="../../../../../org/apache/ignite/cache/query/Query.html#toString--">toString</a></code></li> |
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| <code><a href="http://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="http://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="http://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="http://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="http://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="http://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="http://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="http://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="http://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="http://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>Constructor Detail</h3> |
| <a name="ContinuousQuery--"> |
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| <h4>ContinuousQuery</h4> |
| <pre>public ContinuousQuery()</pre> |
| <div class="block">Creates new continuous query.</div> |
| </li> |
| </ul> |
| </li> |
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| <h3>Method Detail</h3> |
| <a name="setInitialQuery-org.apache.ignite.cache.query.Query-"> |
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| <h4>setInitialQuery</h4> |
| <pre>public <a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> setInitialQuery(<a href="../../../../../org/apache/ignite/cache/query/Query.html" title="class in org.apache.ignite.cache.query">Query</a><span class='angle_bracket'><</span>javax.cache.Cache.Entry<span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span><span class='angle_bracket'>></span> initQry)</pre> |
| <div class="block">Sets initial query. |
| <p> |
| This query will be executed before continuous listener is registered |
| which allows to iterate through entries which already existed at the |
| time continuous query is executed.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#setInitialQuery-org.apache.ignite.cache.query.Query-">setInitialQuery</a></code> in class <code><a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html" title="class in org.apache.ignite.cache.query">AbstractContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>initQry</code> - Initial query.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>this</code> for chaining.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setLocalListener-javax.cache.event.CacheEntryUpdatedListener-"> |
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| <h4>setLocalListener</h4> |
| <pre>public <a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> setLocalListener(javax.cache.event.CacheEntryUpdatedListener<span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> locLsnr)</pre> |
| <div class="block">Sets a local callback. This callback is called only on local node when new updates are received. |
| <p> |
| The callback predicate accepts ID of the node from where updates are received and a collection |
| of the received entries. Note that for removed entries values will be <code>null</code>. |
| <p> |
| If the predicate returns <code>false</code>, query execution will be cancelled. |
| <p> |
| <b>WARNING:</b> all operations that involve any kind of JVM-local or distributed locking (e.g., |
| synchronization or transactional cache operations), should be executed asynchronously without |
| blocking the thread that called the callback. Otherwise, you can get deadlocks. |
| <p> |
| If local listener are annotated with <a href="../../../../../org/apache/ignite/lang/IgniteAsyncCallback.html" title="annotation in org.apache.ignite.lang"><code>IgniteAsyncCallback</code></a> then it is executed in an async callback pool |
| (see <a href="../../../../../org/apache/ignite/configuration/IgniteConfiguration.html#getAsyncCallbackPoolSize--"><code>IgniteConfiguration.getAsyncCallbackPoolSize()</code></a>) that allow to perform a cache operations.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>locLsnr</code> - Local callback.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>this</code> for chaining.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/ignite/lang/IgniteAsyncCallback.html" title="annotation in org.apache.ignite.lang"><code>IgniteAsyncCallback</code></a>, |
| <a href="../../../../../org/apache/ignite/configuration/IgniteConfiguration.html#getAsyncCallbackPoolSize--"><code>IgniteConfiguration.getAsyncCallbackPoolSize()</code></a>, |
| <a href="../../../../../org/apache/ignite/cache/query/ContinuousQueryWithTransformer.html#setLocalListener-org.apache.ignite.cache.query.ContinuousQueryWithTransformer.EventListener-"><code>ContinuousQueryWithTransformer.setLocalListener(EventListener)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getLocalListener--"> |
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| <h4>getLocalListener</h4> |
| <pre>public javax.cache.event.CacheEntryUpdatedListener<span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> getLocalListener()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Local listener.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setRemoteFilter-org.apache.ignite.cache.CacheEntryEventSerializableFilter-"> |
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| <h4>setRemoteFilter</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a> |
| public <a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> setRemoteFilter(<a href="../../../../../org/apache/ignite/cache/CacheEntryEventSerializableFilter.html" title="interface in org.apache.ignite.cache">CacheEntryEventSerializableFilter</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> rmtFilter)</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> <span class="deprecationComment">Use <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#setRemoteFilterFactory-javax.cache.configuration.Factory-"><code>AbstractContinuousQuery.setRemoteFilterFactory(Factory)</code></a> instead.</span></div> |
| <div class="block">Sets optional key-value filter. This filter is called before entry is sent to the master node. |
| <p> |
| <b>WARNING:</b> all operations that involve any kind of JVM-local or distributed locking |
| (e.g., synchronization or transactional cache operations), should be executed asynchronously |
| without blocking the thread that called the filter. Otherwise, you can get deadlocks. |
| <p> |
| If remote filter are annotated with <a href="../../../../../org/apache/ignite/lang/IgniteAsyncCallback.html" title="annotation in org.apache.ignite.lang"><code>IgniteAsyncCallback</code></a> then it is executed in async callback |
| pool (see <a href="../../../../../org/apache/ignite/configuration/IgniteConfiguration.html#getAsyncCallbackPoolSize--"><code>IgniteConfiguration.getAsyncCallbackPoolSize()</code></a>) that allow to perform a cache operations.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rmtFilter</code> - Key-value filter.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>this</code> for chaining.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/ignite/lang/IgniteAsyncCallback.html" title="annotation in org.apache.ignite.lang"><code>IgniteAsyncCallback</code></a>, |
| <a href="../../../../../org/apache/ignite/configuration/IgniteConfiguration.html#getAsyncCallbackPoolSize--"><code>IgniteConfiguration.getAsyncCallbackPoolSize()</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getRemoteFilter--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getRemoteFilter</h4> |
| <pre>public <a href="../../../../../org/apache/ignite/cache/CacheEntryEventSerializableFilter.html" title="interface in org.apache.ignite.cache">CacheEntryEventSerializableFilter</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> getRemoteFilter()</pre> |
| <div class="block">Gets remote filter.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Remote filter.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setTimeInterval-long-"> |
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| <li class="blockList"> |
| <h4>setTimeInterval</h4> |
| <pre>public <a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> setTimeInterval(long timeInterval)</pre> |
| <div class="block">Sets time interval. |
| <p> |
| When a cache update happens, entry is first put into a buffer. Entries from buffer will |
| be sent to the master node only if the buffer is full (its size can be provided via <a href="../../../../../org/apache/ignite/cache/query/Query.html#setPageSize-int-"><code>Query.setPageSize(int)</code></a> |
| method) or time provided via this method is exceeded. |
| <p> |
| Default time interval is <code>0</code> which means that |
| time check is disabled and entries will be sent only when buffer is full.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#setTimeInterval-long-">setTimeInterval</a></code> in class <code><a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html" title="class in org.apache.ignite.cache.query">AbstractContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>timeInterval</code> - Time interval.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>this</code> for chaining.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setAutoUnsubscribe-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setAutoUnsubscribe</h4> |
| <pre>public <a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> setAutoUnsubscribe(boolean autoUnsubscribe)</pre> |
| <div class="block">Sets automatic unsubscribe flag. |
| <p> |
| This flag indicates that query filters on remote nodes should be |
| automatically unregistered if master node (node that initiated the query) leaves topology. If this flag is |
| <code>false</code>, filters will be unregistered only when the query is cancelled from master node, and won't ever be |
| unregistered if master node leaves grid. |
| <p> |
| Default value for this flag is <code>true</code>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#setAutoUnsubscribe-boolean-">setAutoUnsubscribe</a></code> in class <code><a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html" title="class in org.apache.ignite.cache.query">AbstractContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>autoUnsubscribe</code> - Automatic unsubscription flag.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>this</code> for chaining.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setPageSize-int-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setPageSize</h4> |
| <pre>public <a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> setPageSize(int pageSize)</pre> |
| <div class="block">Sets optional page size, if <code>0</code>, then default is used.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/ignite/cache/query/Query.html#setPageSize-int-">setPageSize</a></code> in class <code><a href="../../../../../org/apache/ignite/cache/query/Query.html" title="class in org.apache.ignite.cache.query">Query</a><span class='angle_bracket'><</span>javax.cache.Cache.Entry<span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span><span class='angle_bracket'>></span></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>pageSize</code> - Optional page size.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>this</code> for chaining.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setLocal-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>setLocal</h4> |
| <pre>public <a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="class in org.apache.ignite.cache.query">ContinuousQuery</a><span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span> setLocal(boolean loc)</pre> |
| <div class="block">Sets whether this query should be executed on a local node only. |
| |
| Note: backup event queues are not kept for local continuous queries. It may lead to loss of notifications in case |
| of node failures. Use <a href="../../../../../org/apache/ignite/cache/query/AbstractContinuousQuery.html#setRemoteFilterFactory-javax.cache.configuration.Factory-"><code>AbstractContinuousQuery.setRemoteFilterFactory(Factory)</code></a> to register cache event listeners |
| on all cache nodes, if delivery guarantee is required.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/ignite/cache/query/Query.html#setLocal-boolean-">setLocal</a></code> in class <code><a href="../../../../../org/apache/ignite/cache/query/Query.html" title="class in org.apache.ignite.cache.query">Query</a><span class='angle_bracket'><</span>javax.cache.Cache.Entry<span class='angle_bracket'><</span><a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">K</a>,<a href="../../../../../org/apache/ignite/cache/query/ContinuousQuery.html" title="type parameter in ContinuousQuery">V</a><span class='angle_bracket'>></span><span class='angle_bracket'>></span></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>loc</code> - Local flag.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>this</code> for chaining.</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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