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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.cayenne.remote</a></div> |
| <h2 title="Class ClientChannel" class="title">Class ClientChannel</h2> |
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| <ul class="inheritance"> |
| <li><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">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.cayenne.remote.ClientChannel</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="../DataChannel.html" title="interface in org.apache.cayenne">DataChannel</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public class <span class="typeNameLabel">ClientChannel</span> |
| 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" class="externalLink">Object</a> |
| implements <a href="../DataChannel.html" title="interface in org.apache.cayenne">DataChannel</a></pre> |
| <div class="block">A <a href="../DataChannel.html" title="interface in org.apache.cayenne"><code>DataChannel</code></a> implementation that accesses a remote server |
| via a ClientConnection.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>1.2</dd> |
| </dl> |
| </li> |
| </ul> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#channelEventsEnabled">channelEventsEnabled</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="ClientConnection.html" title="interface in org.apache.cayenne.remote">ClientConnection</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#connection">connection</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="../graph/GraphDiffCompressor.html" title="class in org.apache.cayenne.graph">GraphDiffCompressor</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#diffCompressor">diffCompressor</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#entityResolver">entityResolver</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="../event/EventManager.html" title="interface in org.apache.cayenne.event">EventManager</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#eventManager">eventManager</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
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| <!-- --> |
| </a> |
| <h3>Fields inherited from interface org.apache.cayenne.<a href="../DataChannel.html" title="interface in org.apache.cayenne">DataChannel</a></h3> |
| <code><a href="../DataChannel.html#FLUSH_CASCADE_SYNC">FLUSH_CASCADE_SYNC</a>, <a href="../DataChannel.html#FLUSH_NOCASCADE_SYNC">FLUSH_NOCASCADE_SYNC</a>, <a href="../DataChannel.html#GRAPH_CHANGED_SUBJECT">GRAPH_CHANGED_SUBJECT</a>, <a href="../DataChannel.html#GRAPH_FLUSHED_SUBJECT">GRAPH_FLUSHED_SUBJECT</a>, <a href="../DataChannel.html#GRAPH_ROLLEDBACK_SUBJECT">GRAPH_ROLLEDBACK_SUBJECT</a>, <a href="../DataChannel.html#ROLLBACK_CASCADE_SYNC">ROLLBACK_CASCADE_SYNC</a></code></li> |
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| <tr> |
| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.cayenne.remote.ClientConnection,boolean,org.apache.cayenne.event.EventManager,boolean)">ClientChannel</a></span>​(<a href="ClientConnection.html" title="interface in org.apache.cayenne.remote">ClientConnection</a> connection, |
| boolean channelEventsEnabled, |
| <a href="../event/EventManager.html" title="interface in org.apache.cayenne.event">EventManager</a> eventManager, |
| boolean remoteEventsOptional)</code></th> |
| <td class="colLast"> </td> |
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| <h3>Method Summary</h3> |
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| <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><a href="ClientConnection.html" title="interface in org.apache.cayenne.remote">ClientConnection</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getConnection()">getConnection</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getEntityResolver()">getEntityResolver</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns EntityResolver obtained from the server.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../event/EventManager.html" title="interface in org.apache.cayenne.event">EventManager</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getEventManager()">getEventManager</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns an EventManager associated with this channel.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isChannelEventsEnabled()">isChannelEventsEnabled</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../QueryResponse.html" title="interface in org.apache.cayenne">QueryResponse</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onQuery(org.apache.cayenne.ObjectContext,org.apache.cayenne.query.Query)">onQuery</a></span>​(<a href="../ObjectContext.html" title="interface in org.apache.cayenne">ObjectContext</a> context, |
| <a href="../query/Query.html" title="interface in org.apache.cayenne.query">Query</a> query)</code></th> |
| <td class="colLast"> |
| <div class="block">Executes a query, using provided <em>context</em> to register persistent objects if |
| query returns any objects.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../graph/GraphDiff.html" title="interface in org.apache.cayenne.graph">GraphDiff</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onSync(org.apache.cayenne.ObjectContext,org.apache.cayenne.graph.GraphDiff,int)">onSync</a></span>​(<a href="../ObjectContext.html" title="interface in org.apache.cayenne">ObjectContext</a> originatingContext, |
| <a href="../graph/GraphDiff.html" title="interface in org.apache.cayenne.graph">GraphDiff</a> changes, |
| int syncType)</code></th> |
| <td class="colLast"> |
| <div class="block">Processes synchronization request from a child ObjectContext, returning a GraphDiff |
| that describes changes to objects made on the receiving end as a result of |
| synchronization.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>protected <T> T</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#send(org.apache.cayenne.remote.ClientMessage,java.lang.Class)">send</a></span>​(org.apache.cayenne.remote.ClientMessage message, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> resultClass)</code></th> |
| <td class="colLast"> |
| <div class="block">Sends a message via connector, getting a result as an instance of a specific class.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setupRemoteChannelListener()">setupRemoteChannelListener</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Starts up an EventBridge to listen for remote updates.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.<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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| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="field.detail"> |
| <!-- --> |
| </a> |
| <h3>Field Detail</h3> |
| <a id="connection"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>connection</h4> |
| <pre>protected <a href="ClientConnection.html" title="interface in org.apache.cayenne.remote">ClientConnection</a> connection</pre> |
| </li> |
| </ul> |
| <a id="eventManager"> |
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| <h4>eventManager</h4> |
| <pre>protected <a href="../event/EventManager.html" title="interface in org.apache.cayenne.event">EventManager</a> eventManager</pre> |
| </li> |
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| <a id="entityResolver"> |
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| <h4>entityResolver</h4> |
| <pre>protected <a href="../map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a> entityResolver</pre> |
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| <h4>channelEventsEnabled</h4> |
| <pre>protected boolean channelEventsEnabled</pre> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>diffCompressor</h4> |
| <pre>protected <a href="../graph/GraphDiffCompressor.html" title="class in org.apache.cayenne.graph">GraphDiffCompressor</a> diffCompressor</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a id="<init>(org.apache.cayenne.remote.ClientConnection,boolean,org.apache.cayenne.event.EventManager,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
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| <h4>ClientChannel</h4> |
| <pre>public ClientChannel​(<a href="ClientConnection.html" title="interface in org.apache.cayenne.remote">ClientConnection</a> connection, |
| boolean channelEventsEnabled, |
| <a href="../event/EventManager.html" title="interface in org.apache.cayenne.event">EventManager</a> eventManager, |
| boolean remoteEventsOptional) |
| throws <a href="../CayenneRuntimeException.html" title="class in org.apache.cayenne">CayenneRuntimeException</a></pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>remoteEventsOptional</code> - if true, failure to start an EventBridge will not |
| result in an exception.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../CayenneRuntimeException.html" title="class in org.apache.cayenne">CayenneRuntimeException</a></code></dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>3.0</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ============ METHOD DETAIL ========== --> |
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| <h3>Method Detail</h3> |
| <a id="getConnection()"> |
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| <h4>getConnection</h4> |
| <pre class="methodSignature">public <a href="ClientConnection.html" title="interface in org.apache.cayenne.remote">ClientConnection</a> getConnection()</pre> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>3.1</dd> |
| </dl> |
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| <h4>isChannelEventsEnabled</h4> |
| <pre class="methodSignature">public boolean isChannelEventsEnabled()</pre> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>3.1</dd> |
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| <a id="getEventManager()"> |
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| <h4>getEventManager</h4> |
| <pre class="methodSignature">public <a href="../event/EventManager.html" title="interface in org.apache.cayenne.event">EventManager</a> getEventManager()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../DataChannel.html#getEventManager()">DataChannel</a></code></span></div> |
| <div class="block">Returns an EventManager associated with this channel. Channel may return null if |
| EventManager is not available for any reason.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../DataChannel.html#getEventManager()">getEventManager</a></code> in interface <code><a href="../DataChannel.html" title="interface in org.apache.cayenne">DataChannel</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="onQuery(org.apache.cayenne.ObjectContext,org.apache.cayenne.query.Query)"> |
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| <h4>onQuery</h4> |
| <pre class="methodSignature">public <a href="../QueryResponse.html" title="interface in org.apache.cayenne">QueryResponse</a> onQuery​(<a href="../ObjectContext.html" title="interface in org.apache.cayenne">ObjectContext</a> context, |
| <a href="../query/Query.html" title="interface in org.apache.cayenne.query">Query</a> query)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../DataChannel.html#onQuery(org.apache.cayenne.ObjectContext,org.apache.cayenne.query.Query)">DataChannel</a></code></span></div> |
| <div class="block">Executes a query, using provided <em>context</em> to register persistent objects if |
| query returns any objects.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../DataChannel.html#onQuery(org.apache.cayenne.ObjectContext,org.apache.cayenne.query.Query)">onQuery</a></code> in interface <code><a href="../DataChannel.html" title="interface in org.apache.cayenne">DataChannel</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>context</code> - an ObjectContext that originated the query, used to |
| register result objects.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a generic response object that encapsulates result of the execution.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="onSync(org.apache.cayenne.ObjectContext,org.apache.cayenne.graph.GraphDiff,int)"> |
| <!-- --> |
| </a> |
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| <h4>onSync</h4> |
| <pre class="methodSignature">public <a href="../graph/GraphDiff.html" title="interface in org.apache.cayenne.graph">GraphDiff</a> onSync​(<a href="../ObjectContext.html" title="interface in org.apache.cayenne">ObjectContext</a> originatingContext, |
| <a href="../graph/GraphDiff.html" title="interface in org.apache.cayenne.graph">GraphDiff</a> changes, |
| int syncType)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../DataChannel.html#onSync(org.apache.cayenne.ObjectContext,org.apache.cayenne.graph.GraphDiff,int)">DataChannel</a></code></span></div> |
| <div class="block">Processes synchronization request from a child ObjectContext, returning a GraphDiff |
| that describes changes to objects made on the receiving end as a result of |
| synchronization.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../DataChannel.html#onSync(org.apache.cayenne.ObjectContext,org.apache.cayenne.graph.GraphDiff,int)">onSync</a></code> in interface <code><a href="../DataChannel.html" title="interface in org.apache.cayenne">DataChannel</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>originatingContext</code> - an ObjectContext that initiated the sync. Can be null.</dd> |
| <dd><code>changes</code> - diff from the context that initiated the sync.</dd> |
| <dd><code>syncType</code> - One of <a href="../DataChannel.html#FLUSH_NOCASCADE_SYNC"><code>DataChannel.FLUSH_NOCASCADE_SYNC</code></a>, <a href="../DataChannel.html#FLUSH_CASCADE_SYNC"><code>DataChannel.FLUSH_CASCADE_SYNC</code></a>, |
| <a href="../DataChannel.html#ROLLBACK_CASCADE_SYNC"><code>DataChannel.ROLLBACK_CASCADE_SYNC</code></a>.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getEntityResolver()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getEntityResolver</h4> |
| <pre class="methodSignature">public <a href="../map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a> getEntityResolver()</pre> |
| <div class="block">Returns EntityResolver obtained from the server. On first access, this method sends |
| a message to the server to retrieve the EntityResolver. On subsequent calls locally |
| cached resolver is used.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../DataChannel.html#getEntityResolver()">getEntityResolver</a></code> in interface <code><a href="../DataChannel.html" title="interface in org.apache.cayenne">DataChannel</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="setupRemoteChannelListener()"> |
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| <h4>setupRemoteChannelListener</h4> |
| <pre class="methodSignature">protected boolean setupRemoteChannelListener() |
| throws <a href="../CayenneRuntimeException.html" title="class in org.apache.cayenne">CayenneRuntimeException</a></pre> |
| <div class="block">Starts up an EventBridge to listen for remote updates. Returns true if the listener |
| was setup, false if not. False can be returned if the underlying connection doesn't |
| support events of if there is no EventManager available.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../CayenneRuntimeException.html" title="class in org.apache.cayenne">CayenneRuntimeException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="send(org.apache.cayenne.remote.ClientMessage,java.lang.Class)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>send</h4> |
| <pre class="methodSignature">protected <T> T send​(org.apache.cayenne.remote.ClientMessage message, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> resultClass)</pre> |
| <div class="block">Sends a message via connector, getting a result as an instance of a specific class.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../CayenneRuntimeException.html" title="class in org.apache.cayenne">CayenneRuntimeException</a></code> - if an underlying connector |
| exception occurred, or a result is not of expected type.</dd> |
| </dl> |
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