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| <li>Summary: </li> |
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| <div class="subTitle">org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction</div> |
| <h2 title="Class TimestampRangeTracker" class="title">Class TimestampRangeTracker</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">org.apache.beam.sdk.transforms.splittabledofn.RestrictionTracker</a><<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a>,com.google.cloud.Timestamp></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction.TimestampRangeTracker</li> |
| </ul> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.HasProgress.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.HasProgress</a></dd> |
| </dl> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/DetectNewPartitionsRangeTracker.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">DetectNewPartitionsRangeTracker</a>, <a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/ReadChangeStreamPartitionRangeTracker.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">ReadChangeStreamPartitionRangeTracker</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public class <span class="typeNameLabel">TimestampRangeTracker</span> |
| extends <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker</a><<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a>,com.google.cloud.Timestamp> |
| implements <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.HasProgress.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.HasProgress</a></pre> |
| <div class="block">A <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>RestrictionTracker</code></a> for claiming positions in a <a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction"><code>TimestampRange</code></a> in a |
| monotonically increasing fashion. |
| |
| <p>The smallest position is <code>Timestamp.MIN_VALUE</code> and the largest position is <code>Timestamp.MAX_VALUE - 1 nanosecond</code>.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
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| <h3>Nested Class Summary</h3> |
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| <li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.beam.sdk.transforms.splittabledofn.RestrictionTracker"> |
| <!-- --> |
| </a> |
| <h3>Nested classes/interfaces inherited from class org.apache.beam.sdk.transforms.splittabledofn.<a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker</a></h3> |
| <code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.HasProgress.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.HasProgress</a>, <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.IsBounded.html" title="enum in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.IsBounded</a>, <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.Progress.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.Progress</a>, <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.TruncateResult.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.TruncateResult</a><<a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.TruncateResult.html" title="type parameter in RestrictionTracker.TruncateResult">RestrictionT</a>></code></li> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.10.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> com.google.cloud.Timestamp</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRangeTracker.html#lastAttemptedPosition">lastAttemptedPosition</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.10.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> com.google.cloud.Timestamp</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRangeTracker.html#lastClaimedPosition">lastClaimedPosition</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRangeTracker.html#range">range</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
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| <h3>Constructor Summary</h3> |
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| <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/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRangeTracker.html#TimestampRangeTracker-org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction.TimestampRange-">TimestampRangeTracker</a></span>(<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a> range)</code> </td> |
| </tr> |
| </table> |
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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></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/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRangeTracker.html#checkDone--">checkDone</a></span>()</code> |
| <div class="block">Checks if the restriction has been processed successfully.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRangeTracker.html#currentRestriction--">currentRestriction</a></span>()</code> |
| <div class="block">Returns a restriction accurately describing the full range of work the current <code>DoFn.ProcessElement</code> call will do, including already completed work.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.Progress.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.Progress</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRangeTracker.html#getProgress--">getProgress</a></span>()</code> |
| <div class="block">Returns the progress made within the restriction so far.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.IsBounded.html" title="enum in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.IsBounded</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRangeTracker.html#isBounded--">isBounded</a></span>()</code> |
| <div class="block">Return the boundedness of the current restriction.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRangeTracker.html#tryClaim-com.google.cloud.Timestamp-">tryClaim</a></span>(com.google.cloud.Timestamp position)</code> |
| <div class="block">Attempts to claim the given position.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.10.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/SplitResult.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">SplitResult</a><<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRangeTracker.html#trySplit-double-">trySplit</a></span>(double fractionOfRemainder)</code> |
| <div class="block">Splits the restriction through the following algorithm:</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <li class="blockList"><a name="field.detail"> |
| <!-- --> |
| </a> |
| <h3>Field Detail</h3> |
| <a name="range"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>range</h4> |
| <pre>protected <a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a> range</pre> |
| </li> |
| </ul> |
| <a name="lastAttemptedPosition"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>lastAttemptedPosition</h4> |
| <pre>protected <a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.10.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> com.google.cloud.Timestamp lastAttemptedPosition</pre> |
| </li> |
| </ul> |
| <a name="lastClaimedPosition"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>lastClaimedPosition</h4> |
| <pre>protected <a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.10.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> com.google.cloud.Timestamp lastClaimedPosition</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a name="TimestampRangeTracker-org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction.TimestampRange-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
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| <h4>TimestampRangeTracker</h4> |
| <pre>public TimestampRangeTracker(<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a> range)</pre> |
| </li> |
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| </li> |
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| <h3>Method Detail</h3> |
| <a name="tryClaim-com.google.cloud.Timestamp-"> |
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| </a> |
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| <li class="blockList"> |
| <h4>tryClaim</h4> |
| <pre>public boolean tryClaim(com.google.cloud.Timestamp position)</pre> |
| <div class="block">Attempts to claim the given position. Depending on the position following outcomes are |
| possible: |
| |
| <ul> |
| <li>If the position is less than or equal to a previous attempted one, an <code>IllegalArgumentException</code> will be thrown |
| <li>If the position is less than the restriction range start, an <code>IllegalArgumentException</code> will be thrown |
| <li>If the position is greater than or equal to the range end, the position will not be |
| claimed |
| <li>If the position is greater or equal to the range start and less than the range end, the |
| position will be claimed |
| </ul> |
| |
| If an error is not thrown, this function will register the position as the <code>lastAttemptedPosition</code>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html#tryClaim-PositionT-">tryClaim</a></code> in class <code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker</a><<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a>,com.google.cloud.Timestamp></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>true</code> if the position was successfully claimed, <code>false</code> otherwise</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="trySplit-double-"> |
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| </a> |
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| <li class="blockList"> |
| <h4>trySplit</h4> |
| <pre>public <a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.10.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/SplitResult.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">SplitResult</a><<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a>> trySplit(double fractionOfRemainder)</pre> |
| <div class="block">Splits the restriction through the following algorithm: |
| |
| <pre> |
| currentPosition = lastAttemptedPosition == null ? (from - 1ns) : lastAttemptedPosition |
| splitPosition = currentPosition + max(1, (range.to - currentPosition) * fractionOfRemainder) |
| primary = [range.from, splitPosition) |
| residual = [splitPosition, range.to) |
| this.range = primary |
| </pre> |
| |
| If the <code>splitPosition</code> is greater than the <code>range.to</code>, <code>null</code> will be |
| returned. For checkpoints the <code>fractionOfRemainder</code> will always be zero.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html#trySplit-double-">trySplit</a></code> in class <code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker</a><<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a>,com.google.cloud.Timestamp></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fractionOfRemainder</code> - A hint as to the fraction of work the primary restriction should |
| represent based upon the current known remaining amount of work.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/SplitResult.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>SplitResult</code></a> if a split was possible or <code>null</code> if the <code>splitPosition</code> is beyond the end of the range.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="checkDone--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>checkDone</h4> |
| <pre>public void checkDone() |
| throws java.lang.IllegalStateException</pre> |
| <div class="block">Checks if the restriction has been processed successfully. If not, throws an <code>IllegalStateException</code>. |
| |
| <p>The restriction is considered processed successfully if: |
| |
| <ul> |
| <li>The range is empty (<code>range.from == range.to</code>) |
| <li>The <code>lastAttemptedPosition + 1ns >= range.to</code> |
| </ul> |
| |
| The restriction is considered not processed successfully if: |
| |
| <ul> |
| <li>No position claim was attempted for a non-empty range |
| <li>The <code>lastAttemptedPosition + 1ns < range.to</code> |
| </ul></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html#checkDone--">checkDone</a></code> in class <code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker</a><<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a>,com.google.cloud.Timestamp></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.IllegalStateException</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getProgress--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getProgress</h4> |
| <pre>public <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.Progress.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.Progress</a> getProgress()</pre> |
| <div class="block">Returns the progress made within the restriction so far. This progress is returned in a |
| normalized fashion from the interval [0, 1]. Zero means no work indicates no work (completed or |
| remaining), while 1 indicates all work (completed or remaining). |
| |
| <p>If no position was attempted, it will return <code>workCompleted</code> as 0 and <code>workRemaining</code> as 1. If a position was attempted, it will return the fraction of work completed |
| and work remaining based on the offset the position represents in the restriction range. If the |
| last position attempted was greater than the end of the restriction range, it will return |
| <code>workCompleted</code> as 1 and <code>workRemaining</code> as 0.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.HasProgress.html#getProgress--">getProgress</a></code> in interface <code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.HasProgress.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.HasProgress</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>work completed and work remaining as fractions between [0, 1]</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="currentRestriction--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>currentRestriction</h4> |
| <pre>public <a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a> currentRestriction()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html#currentRestriction--">RestrictionTracker</a></code></span></div> |
| <div class="block">Returns a restriction accurately describing the full range of work the current <code>DoFn.ProcessElement</code> call will do, including already completed work. |
| |
| <p>The current restriction returned by method may be updated dynamically due to due to |
| concurrent invocation of other methods of the <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>RestrictionTracker</code></a>, For example, <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html#trySplit-double-"><code>RestrictionTracker.trySplit(double)</code></a>. |
| |
| <p>This method is <b>required</b> to be implemented.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html#currentRestriction--">currentRestriction</a></code> in class <code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker</a><<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a>,com.google.cloud.Timestamp></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isBounded--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>isBounded</h4> |
| <pre>public <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.IsBounded.html" title="enum in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker.IsBounded</a> isBounded()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html#isBounded--">RestrictionTracker</a></code></span></div> |
| <div class="block">Return the boundedness of the current restriction. If the current restriction represents a |
| finite amount of work, it should return <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.IsBounded.html#BOUNDED"><code>RestrictionTracker.IsBounded.BOUNDED</code></a>. Otherwise, it should return |
| <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.IsBounded.html#UNBOUNDED"><code>RestrictionTracker.IsBounded.UNBOUNDED</code></a>. |
| |
| <p>It is valid to return <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.IsBounded.html#BOUNDED"><code>RestrictionTracker.IsBounded.BOUNDED</code></a> after returning <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.IsBounded.html#UNBOUNDED"><code>RestrictionTracker.IsBounded.UNBOUNDED</code></a> |
| once the end of a restriction is discovered. It is not valid to return <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.IsBounded.html#UNBOUNDED"><code>RestrictionTracker.IsBounded.UNBOUNDED</code></a> after returning <a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.IsBounded.html#BOUNDED"><code>RestrictionTracker.IsBounded.BOUNDED</code></a>. |
| |
| <p>This method is <b>required</b> to be implemented.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html#isBounded--">isBounded</a></code> in class <code><a href="../../../../../../../../../org/apache/beam/sdk/transforms/splittabledofn/RestrictionTracker.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">RestrictionTracker</a><<a href="../../../../../../../../../org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/TimestampRange.html" title="class in org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction">TimestampRange</a>,com.google.cloud.Timestamp></code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
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