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| <div class="subTitle">org.apache.distributedlog.logsegment</div> |
| <h2 title="Interface LogSegmentMetadataStore" class="title">Interface LogSegmentMetadataStore</h2> |
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| <pre>@Beta |
| public interface <span class="typeNameLabel">LogSegmentMetadataStore</span> |
| extends <a href="http://download.oracle.com/javase/6/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></pre> |
| <div class="block">Interface for log segment metadata store. All operations that modify log segments should |
| be executed under a <code>Transaction</code>.</div> |
| </li> |
| </ul> |
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| <ul class="blockList"> |
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| <!-- ========== METHOD SUMMARY =========== --> |
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| <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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/distributedlog/logsegment/LogSegmentMetadataStore.html#createLogSegment-org.apache.distributedlog.util.Transaction-org.apache.distributedlog.LogSegmentMetadata-org.apache.distributedlog.util.Transaction.OpListener-">createLogSegment</a></span>(org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> txn, |
| <a href="../../../../org/apache/distributedlog/LogSegmentMetadata.html" title="class in org.apache.distributedlog">LogSegmentMetadata</a> segment, |
| org.apache.distributedlog.util.Transaction.OpListener<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Void.html?is-external=true" title="class or interface in java.lang">Void</a>> opListener)</code> |
| <div class="block">Create a log segment <code>segment</code> under transaction <code>txn</code>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/distributedlog/logsegment/LogSegmentMetadataStore.html#deleteLogSegment-org.apache.distributedlog.util.Transaction-org.apache.distributedlog.LogSegmentMetadata-org.apache.distributedlog.util.Transaction.OpListener-">deleteLogSegment</a></span>(org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> txn, |
| <a href="../../../../org/apache/distributedlog/LogSegmentMetadata.html" title="class in org.apache.distributedlog">LogSegmentMetadata</a> segment, |
| org.apache.distributedlog.util.Transaction.OpListener<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Void.html?is-external=true" title="class or interface in java.lang">Void</a>> opListener)</code> |
| <div class="block">Delete a log segment <code>segment</code> under transaction <code>txn</code>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a><<a href="../../../../org/apache/distributedlog/LogSegmentMetadata.html" title="class in org.apache.distributedlog">LogSegmentMetadata</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/distributedlog/logsegment/LogSegmentMetadataStore.html#getLogSegment-java.lang.String-">getLogSegment</a></span>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> logSegmentPath)</code> |
| <div class="block">Retrieve the log segment associated <code>path</code>.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a><org.apache.bookkeeper.versioning.Versioned<<a href="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://download.oracle.com/javase/6/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/distributedlog/logsegment/LogSegmentMetadataStore.html#getLogSegmentNames-java.lang.String-org.apache.distributedlog.callback.LogSegmentNamesListener-">getLogSegmentNames</a></span>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> logSegmentsPath, |
| <a href="../../../../org/apache/distributedlog/callback/LogSegmentNamesListener.html" title="interface in org.apache.distributedlog.callback">LogSegmentNamesListener</a> listener)</code> |
| <div class="block">Retrieve the list of log segments under <code>logSegmentsPath</code> and register a <i>listener</i> |
| for subsequent changes for the list of log segments.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/distributedlog/logsegment/LogSegmentMetadataStore.html#storeMaxLogSegmentSequenceNumber-org.apache.distributedlog.util.Transaction-org.apache.distributedlog.metadata.LogMetadata-org.apache.bookkeeper.versioning.Versioned-org.apache.distributedlog.util.Transaction.OpListener-">storeMaxLogSegmentSequenceNumber</a></span>(org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> txn, |
| <a href="../../../../org/apache/distributedlog/metadata/LogMetadata.html" title="class in org.apache.distributedlog.metadata">LogMetadata</a> logMetadata, |
| org.apache.bookkeeper.versioning.Versioned<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> sequenceNumber, |
| org.apache.distributedlog.util.Transaction.OpListener<org.apache.bookkeeper.versioning.Version> listener)</code> |
| <div class="block">Store the maximum log segment sequence number on <code>path</code>.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/distributedlog/logsegment/LogSegmentMetadataStore.html#storeMaxTxnId-org.apache.distributedlog.util.Transaction-org.apache.distributedlog.metadata.LogMetadataForWriter-org.apache.bookkeeper.versioning.Versioned-org.apache.distributedlog.util.Transaction.OpListener-">storeMaxTxnId</a></span>(org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> txn, |
| <a href="../../../../org/apache/distributedlog/metadata/LogMetadataForWriter.html" title="class in org.apache.distributedlog.metadata">LogMetadataForWriter</a> logMetadata, |
| org.apache.bookkeeper.versioning.Versioned<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> transactionId, |
| org.apache.distributedlog.util.Transaction.OpListener<org.apache.bookkeeper.versioning.Version> listener)</code> |
| <div class="block">Store the maximum transaction id for <code>path</code></div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/distributedlog/logsegment/LogSegmentMetadataStore.html#transaction--">transaction</a></span>()</code> |
| <div class="block">Start the transaction on changing log segment metadata store.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/distributedlog/logsegment/LogSegmentMetadataStore.html#unregisterLogSegmentListener-java.lang.String-org.apache.distributedlog.callback.LogSegmentNamesListener-">unregisterLogSegmentListener</a></span>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> logSegmentsPath, |
| <a href="../../../../org/apache/distributedlog/callback/LogSegmentNamesListener.html" title="interface in org.apache.distributedlog.callback">LogSegmentNamesListener</a> listener)</code> |
| <div class="block">Unregister a log segment <code>listener</code> on log segment changes under <code>logSegmentsPath</code>.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/distributedlog/logsegment/LogSegmentMetadataStore.html#updateLogSegment-org.apache.distributedlog.util.Transaction-org.apache.distributedlog.LogSegmentMetadata-">updateLogSegment</a></span>(org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> txn, |
| <a href="../../../../org/apache/distributedlog/LogSegmentMetadata.html" title="class in org.apache.distributedlog">LogSegmentMetadata</a> segment)</code> |
| <div class="block">Update a log segment <code>segment</code> under transaction <code>txn</code>.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.io.Closeable"> |
| <!-- --> |
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| <h3>Methods inherited from interface java.io.<a href="http://download.oracle.com/javase/6/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></h3> |
| <code><a href="http://download.oracle.com/javase/6/docs/api/java/io/Closeable.html?is-external=true#close--" title="class or interface in java.io">close</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ METHOD DETAIL ========== --> |
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| <a name="transaction--"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>transaction</h4> |
| <pre>org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> transaction()</pre> |
| <div class="block">Start the transaction on changing log segment metadata store.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>transaction of the log segment metadata store.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="storeMaxLogSegmentSequenceNumber-org.apache.distributedlog.util.Transaction-org.apache.distributedlog.metadata.LogMetadata-org.apache.bookkeeper.versioning.Versioned-org.apache.distributedlog.util.Transaction.OpListener-"> |
| <!-- --> |
| </a> |
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| <h4>storeMaxLogSegmentSequenceNumber</h4> |
| <pre>void storeMaxLogSegmentSequenceNumber(org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> txn, |
| <a href="../../../../org/apache/distributedlog/metadata/LogMetadata.html" title="class in org.apache.distributedlog.metadata">LogMetadata</a> logMetadata, |
| org.apache.bookkeeper.versioning.Versioned<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> sequenceNumber, |
| org.apache.distributedlog.util.Transaction.OpListener<org.apache.bookkeeper.versioning.Version> listener)</pre> |
| <div class="block">Store the maximum log segment sequence number on <code>path</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>txn</code> - transaction to execute for storing log segment sequence number.</dd> |
| <dd><code>logMetadata</code> - metadata of the log stream</dd> |
| <dd><code>sequenceNumber</code> - log segment sequence number to store</dd> |
| <dd><code>listener</code> - listener on the result to this operation</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="storeMaxTxnId-org.apache.distributedlog.util.Transaction-org.apache.distributedlog.metadata.LogMetadataForWriter-org.apache.bookkeeper.versioning.Versioned-org.apache.distributedlog.util.Transaction.OpListener-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>storeMaxTxnId</h4> |
| <pre>void storeMaxTxnId(org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> txn, |
| <a href="../../../../org/apache/distributedlog/metadata/LogMetadataForWriter.html" title="class in org.apache.distributedlog.metadata">LogMetadataForWriter</a> logMetadata, |
| org.apache.bookkeeper.versioning.Versioned<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> transactionId, |
| org.apache.distributedlog.util.Transaction.OpListener<org.apache.bookkeeper.versioning.Version> listener)</pre> |
| <div class="block">Store the maximum transaction id for <code>path</code></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>txn</code> - transaction to execute for storing transaction id</dd> |
| <dd><code>logMetadata</code> - metadata of the log stream</dd> |
| <dd><code>transactionId</code> - transaction id to store</dd> |
| <dd><code>listener</code> - listener on the result to this operation</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="createLogSegment-org.apache.distributedlog.util.Transaction-org.apache.distributedlog.LogSegmentMetadata-org.apache.distributedlog.util.Transaction.OpListener-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createLogSegment</h4> |
| <pre>void createLogSegment(org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> txn, |
| <a href="../../../../org/apache/distributedlog/LogSegmentMetadata.html" title="class in org.apache.distributedlog">LogSegmentMetadata</a> segment, |
| org.apache.distributedlog.util.Transaction.OpListener<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Void.html?is-external=true" title="class or interface in java.lang">Void</a>> opListener)</pre> |
| <div class="block">Create a log segment <code>segment</code> under transaction <code>txn</code>. |
| |
| NOTE: this operation shouldn't be a blocking call. and it shouldn't execute the operation |
| immediately. the operation should be executed via <code>Transaction.execute()</code></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>txn</code> - transaction to execute for this operation</dd> |
| <dd><code>segment</code> - segment to create</dd> |
| <dd><code>opListener</code> - the listener on the operation result</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="deleteLogSegment-org.apache.distributedlog.util.Transaction-org.apache.distributedlog.LogSegmentMetadata-org.apache.distributedlog.util.Transaction.OpListener-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>deleteLogSegment</h4> |
| <pre>void deleteLogSegment(org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> txn, |
| <a href="../../../../org/apache/distributedlog/LogSegmentMetadata.html" title="class in org.apache.distributedlog">LogSegmentMetadata</a> segment, |
| org.apache.distributedlog.util.Transaction.OpListener<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Void.html?is-external=true" title="class or interface in java.lang">Void</a>> opListener)</pre> |
| <div class="block">Delete a log segment <code>segment</code> under transaction <code>txn</code>. |
| |
| NOTE: this operation shouldn't be a blocking call. and it shouldn't execute the operation |
| immediately. the operation should be executed via <code>Transaction.execute()</code></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>txn</code> - transaction to execute for this operation</dd> |
| <dd><code>segment</code> - segment to delete</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="updateLogSegment-org.apache.distributedlog.util.Transaction-org.apache.distributedlog.LogSegmentMetadata-"> |
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| </a> |
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| <li class="blockList"> |
| <h4>updateLogSegment</h4> |
| <pre>void updateLogSegment(org.apache.distributedlog.util.Transaction<<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> txn, |
| <a href="../../../../org/apache/distributedlog/LogSegmentMetadata.html" title="class in org.apache.distributedlog">LogSegmentMetadata</a> segment)</pre> |
| <div class="block">Update a log segment <code>segment</code> under transaction <code>txn</code>. |
| |
| NOTE: this operation shouldn't be a blocking call. and it shouldn't execute the operation |
| immediately. the operation should be executed via <code>Transaction.execute()</code></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>txn</code> - transaction to execute for this operation</dd> |
| <dd><code>segment</code> - segment to update</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getLogSegment-java.lang.String-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getLogSegment</h4> |
| <pre><a href="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a><<a href="../../../../org/apache/distributedlog/LogSegmentMetadata.html" title="class in org.apache.distributedlog">LogSegmentMetadata</a>> getLogSegment(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> logSegmentPath)</pre> |
| <div class="block">Retrieve the log segment associated <code>path</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>logSegmentPath</code> - path to store log segment metadata</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>future of the retrieved log segment metadata</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getLogSegmentNames-java.lang.String-org.apache.distributedlog.callback.LogSegmentNamesListener-"> |
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| <h4>getLogSegmentNames</h4> |
| <pre><a href="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a><org.apache.bookkeeper.versioning.Versioned<<a href="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>>>> getLogSegmentNames(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> logSegmentsPath, |
| <a href="../../../../org/apache/distributedlog/callback/LogSegmentNamesListener.html" title="interface in org.apache.distributedlog.callback">LogSegmentNamesListener</a> listener)</pre> |
| <div class="block">Retrieve the list of log segments under <code>logSegmentsPath</code> and register a <i>listener</i> |
| for subsequent changes for the list of log segments.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>logSegmentsPath</code> - path to store list of log segments</dd> |
| <dd><code>listener</code> - log segment listener on log segment changes</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>future of the retrieved list of log segment names</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="unregisterLogSegmentListener-java.lang.String-org.apache.distributedlog.callback.LogSegmentNamesListener-"> |
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| <h4>unregisterLogSegmentListener</h4> |
| <pre>void unregisterLogSegmentListener(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> logSegmentsPath, |
| <a href="../../../../org/apache/distributedlog/callback/LogSegmentNamesListener.html" title="interface in org.apache.distributedlog.callback">LogSegmentNamesListener</a> listener)</pre> |
| <div class="block">Unregister a log segment <code>listener</code> on log segment changes under <code>logSegmentsPath</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>logSegmentsPath</code> - log segments path</dd> |
| <dd><code>listener</code> - log segment listener on log segment changes</dd> |
| </dl> |
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