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| <pre>public final class <span class="typeNameLabel">CoderHelpers</span> |
| extends java.lang.Object</pre> |
| <div class="block">Serialization utility class.</div> |
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| <h3>Method Summary</h3> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static 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> |
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| <td class="colFirst"><code>static <T> T</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/coders/CoderHelpers.html#fromByteArray-byte:A-org.apache.beam.sdk.coders.Coder-">fromByteArray</a></span>(byte[] serialized, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><T> coder)</code> |
| <div class="block">Utility method for deserializing a byte array using the specified coder.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <T> java.lang.Iterable<T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/coders/CoderHelpers.html#fromByteArrays-java.util.Collection-org.apache.beam.sdk.coders.Coder-">fromByteArrays</a></span>(java.util.Collection<byte[]> serialized, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><T> coder)</code> |
| <div class="block">Utility method for deserializing a Iterable of byte arrays using the specified coder.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <K,V> org.apache.spark.api.java.function.PairFunction<scala.Tuple2<<a href="../../../../../../org/apache/beam/runners/spark/util/ByteArray.html" title="class in org.apache.beam.runners.spark.util">ByteArray</a>,byte[]>,K,V></code></td> |
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| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><V> valueCoder)</code> |
| <div class="block">A function wrapper for converting a byte array pair to a key-value pair.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <T> org.apache.spark.api.java.function.Function<byte[],T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/coders/CoderHelpers.html#fromByteFunction-org.apache.beam.sdk.coders.Coder-">fromByteFunction</a></span>(<a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><T> coder)</code> |
| <div class="block">A function wrapper for converting a byte array to an object.</div> |
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| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <K,V> org.apache.spark.api.java.function.PairFunction<scala.Tuple2<<a href="../../../../../../org/apache/beam/runners/spark/util/ByteArray.html" title="class in org.apache.beam.runners.spark.util">ByteArray</a>,java.lang.Iterable<byte[]>>,K,java.lang.Iterable<V>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/coders/CoderHelpers.html#fromByteFunctionIterable-org.apache.beam.sdk.coders.Coder-org.apache.beam.sdk.coders.Coder-">fromByteFunctionIterable</a></span>(<a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><K> keyCoder, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><V> valueCoder)</code> |
| <div class="block">A function wrapper for converting a byte array pair to a key-value pair, where values are |
| <code>Iterable</code>.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static <T> byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/coders/CoderHelpers.html#toByteArray-T-org.apache.beam.sdk.coders.Coder-">toByteArray</a></span>(T value, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><T> coder)</code> |
| <div class="block">Utility method for serializing an object using the specified coder.</div> |
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| <td class="colFirst"><code>static <T> java.util.List<byte[]></code></td> |
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| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><T> coder)</code> |
| <div class="block">Utility method for serializing a Iterable of values using the specified coder.</div> |
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| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static <K,V> org.apache.spark.api.java.function.PairFunction<scala.Tuple2<K,V>,<a href="../../../../../../org/apache/beam/runners/spark/util/ByteArray.html" title="class in org.apache.beam.runners.spark.util">ByteArray</a>,byte[]></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/coders/CoderHelpers.html#toByteFunction-org.apache.beam.sdk.coders.Coder-org.apache.beam.sdk.coders.Coder-">toByteFunction</a></span>(<a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><K> keyCoder, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><V> valueCoder)</code> |
| <div class="block">A function wrapper for converting a key-value pair to a byte array pair.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static <T> org.apache.spark.api.java.function.Function<T,byte[]></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/coders/CoderHelpers.html#toByteFunction-org.apache.beam.sdk.coders.Coder-">toByteFunction</a></span>(<a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><T> coder)</code> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
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| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - type of value that is serialized</dd> |
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| <dd><code>value</code> - Value to serialize.</dd> |
| <dd><code>coder</code> - Coder to serialize with.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Byte array representing serialized object.</dd> |
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| <dd><code>T</code> - type of value that is serialized</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>values</code> - Values to serialize.</dd> |
| <dd><code>coder</code> - Coder to serialize with.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>List of bytes representing serialized objects.</dd> |
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| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - Type of object to be returned.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>serialized</code> - bytearray to be deserialized.</dd> |
| <dd><code>coder</code> - Coder to deserialize with.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Deserialized object.</dd> |
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| <pre>public static <T> java.lang.Iterable<T> fromByteArrays(java.util.Collection<byte[]> serialized, |
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| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - Type of object to be returned.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>serialized</code> - bytearrays to be deserialized.</dd> |
| <dd><code>coder</code> - Coder to deserialize with.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Iterable of deserialized objects.</dd> |
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| <pre>public static <T> org.apache.spark.api.java.function.Function<T,byte[]> toByteFunction(<a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><T> coder)</pre> |
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| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - The type of the object being serialized.</dd> |
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| <dd><code>coder</code> - Coder to serialize with.</dd> |
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| <dd>A function that accepts an object and returns its coder-serialized form.</dd> |
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| <pre>public static <T> org.apache.spark.api.java.function.Function<byte[],T> fromByteFunction(<a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><T> coder)</pre> |
| <div class="block">A function wrapper for converting a byte array to an object.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - The type of the object being deserialized.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>coder</code> - Coder to deserialize with.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A function that accepts a byte array and returns its corresponding object.</dd> |
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| <pre>public static <K,V> org.apache.spark.api.java.function.PairFunction<scala.Tuple2<K,V>,<a href="../../../../../../org/apache/beam/runners/spark/util/ByteArray.html" title="class in org.apache.beam.runners.spark.util">ByteArray</a>,byte[]> toByteFunction(<a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><K> keyCoder, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><V> valueCoder)</pre> |
| <div class="block">A function wrapper for converting a key-value pair to a byte array pair.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>K</code> - The type of the key being serialized.</dd> |
| <dd><code>V</code> - The type of the value being serialized.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>keyCoder</code> - Coder to serialize keys.</dd> |
| <dd><code>valueCoder</code> - Coder to serialize values.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A function that accepts a key-value pair and returns a pair of byte arrays.</dd> |
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| </li> |
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| <pre>public static <K,V> org.apache.spark.api.java.function.PairFunction<scala.Tuple2<<a href="../../../../../../org/apache/beam/runners/spark/util/ByteArray.html" title="class in org.apache.beam.runners.spark.util">ByteArray</a>,byte[]>,K,V> fromByteFunction(<a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><K> keyCoder, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><V> valueCoder)</pre> |
| <div class="block">A function wrapper for converting a byte array pair to a key-value pair.</div> |
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| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>K</code> - The type of the key being deserialized.</dd> |
| <dd><code>V</code> - The type of the value being deserialized.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>keyCoder</code> - Coder to deserialize keys.</dd> |
| <dd><code>valueCoder</code> - Coder to deserialize values.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A function that accepts a pair of byte arrays and returns a key-value pair.</dd> |
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| </li> |
| </ul> |
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| <pre>public static <K,V> org.apache.spark.api.java.function.PairFunction<scala.Tuple2<<a href="../../../../../../org/apache/beam/runners/spark/util/ByteArray.html" title="class in org.apache.beam.runners.spark.util">ByteArray</a>,java.lang.Iterable<byte[]>>,K,java.lang.Iterable<V>> fromByteFunctionIterable(<a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><K> keyCoder, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><V> valueCoder)</pre> |
| <div class="block">A function wrapper for converting a byte array pair to a key-value pair, where values are |
| <code>Iterable</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>K</code> - The type of the key being deserialized.</dd> |
| <dd><code>V</code> - The type of the value being deserialized.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>keyCoder</code> - Coder to deserialize keys.</dd> |
| <dd><code>valueCoder</code> - Coder to deserialize values.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A function that accepts a pair of byte arrays and returns a key-value pair.</dd> |
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