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<title>org.apache.beam.sdk.schemas (Apache Beam 2.8.0-SNAPSHOT)</title>
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<h1 title="Package" class="title">Package&nbsp;org.apache.beam.sdk.schemas</h1>
<div class="docSummary">
<div class="block">Defines <a href="../../../../../org/apache/beam/sdk/schemas/Schema.html" title="class in org.apache.beam.sdk.schemas"><code>Schema</code></a> and other classes for representing schema'd
data in a <a href="../../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a>.</div>
</div>
<p>See:&nbsp;<a href="#package.description">Description</a></p>
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<div class="contentContainer">
<ul class="blockList">
<li class="blockList">
<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Interface Summary table, listing interfaces, and an explanation">
<caption><span>Interface Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Interface</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/FieldValueGetter.html" title="interface in org.apache.beam.sdk.schemas">FieldValueGetter</a>&lt;ObjectT,ValueT&gt;</td>
<td class="colLast">
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b></div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/FieldValueGetterFactory.html" title="interface in org.apache.beam.sdk.schemas">FieldValueGetterFactory</a></td>
<td class="colLast">
<div class="block">A factory interface for creating <a href="../../../../../org/apache/beam/sdk/schemas/FieldValueGetter.html" title="interface in org.apache.beam.sdk.schemas"><code>FieldValueGetter</code></a> objects
corresponding to a class.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/FieldValueSetter.html" title="interface in org.apache.beam.sdk.schemas">FieldValueSetter</a>&lt;ObjectT,ValueT&gt;</td>
<td class="colLast">
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b></div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/FieldValueSetterFactory.html" title="interface in org.apache.beam.sdk.schemas">FieldValueSetterFactory</a></td>
<td class="colLast">
<div class="block">A factory interface for creating <a href="../../../../../org/apache/beam/sdk/schemas/FieldValueSetter.html" title="interface in org.apache.beam.sdk.schemas"><code>FieldValueSetter</code></a> objects
corresponding to a class.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html" title="interface in org.apache.beam.sdk.schemas">SchemaProvider</a></td>
<td class="colLast">
<div class="block">Concrete implementations of this class allow creation of schema service objects that vend a
<a href="../../../../../org/apache/beam/sdk/schemas/Schema.html" title="class in org.apache.beam.sdk.schemas"><code>Schema</code></a> for a specific type.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/SchemaProviderRegistrar.html" title="interface in org.apache.beam.sdk.schemas">SchemaProviderRegistrar</a></td>
<td class="colLast">
<div class="block"><a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html" title="interface in org.apache.beam.sdk.schemas"><code>SchemaProvider</code></a> creators have the ability to automatically have their <a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html" title="interface in org.apache.beam.sdk.schemas"><code>schemaProvider</code></a> registered with this SDK by creating a <code>ServiceLoader</code> entry
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</li>
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<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Class Summary table, listing classes, and an explanation">
<caption><span>Class Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/DefaultSchema.DefaultSchemaProvider.html" title="class in org.apache.beam.sdk.schemas">DefaultSchema.DefaultSchemaProvider</a></td>
<td class="colLast">
<div class="block"><a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html" title="interface in org.apache.beam.sdk.schemas"><code>SchemaProvider</code></a> for default schemas.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/DefaultSchema.DefaultSchemaProviderRegistrar.html" title="class in org.apache.beam.sdk.schemas">DefaultSchema.DefaultSchemaProviderRegistrar</a></td>
<td class="colLast">
<div class="block">Registrar for default schemas.</div>
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</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/FieldAccessDescriptor.html" title="class in org.apache.beam.sdk.schemas">FieldAccessDescriptor</a></td>
<td class="colLast">
<div class="block">Used inside of a <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="class in org.apache.beam.sdk.transforms"><code>DoFn</code></a> to describe which fields in a schema
type need to be accessed for processing.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/FieldTypeDescriptors.html" title="class in org.apache.beam.sdk.schemas">FieldTypeDescriptors</a></td>
<td class="colLast">
<div class="block">Utilities for converting between <a href="../../../../../org/apache/beam/sdk/schemas/Schema.html" title="class in org.apache.beam.sdk.schemas"><code>Schema</code></a> field types and <a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values"><code>TypeDescriptor</code></a>s that
define Java objects which can represent these field types.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/GetterBasedSchemaProvider.html" title="class in org.apache.beam.sdk.schemas">GetterBasedSchemaProvider</a></td>
<td class="colLast">
<div class="block">A <a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html" title="interface in org.apache.beam.sdk.schemas"><code>SchemaProvider</code></a> base class that vends schemas and rows based on <a href="../../../../../org/apache/beam/sdk/schemas/FieldValueGetter.html" title="interface in org.apache.beam.sdk.schemas"><code>FieldValueGetter</code></a>s.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/JavaBeanSchema.html" title="class in org.apache.beam.sdk.schemas">JavaBeanSchema</a></td>
<td class="colLast">
<div class="block">A <a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html" title="interface in org.apache.beam.sdk.schemas"><code>SchemaProvider</code></a> for Java Bean objects.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/JavaFieldSchema.html" title="class in org.apache.beam.sdk.schemas">JavaFieldSchema</a></td>
<td class="colLast">
<div class="block">A <a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html" title="interface in org.apache.beam.sdk.schemas"><code>SchemaProvider</code></a> for Java POJO objects.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/Schema.html" title="class in org.apache.beam.sdk.schemas">Schema</a></td>
<td class="colLast">
<div class="block"><a href="../../../../../org/apache/beam/sdk/schemas/Schema.html" title="class in org.apache.beam.sdk.schemas"><code>Schema</code></a> describes the fields in <a href="../../../../../org/apache/beam/sdk/values/Row.html" title="class in org.apache.beam.sdk.values"><code>Row</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/Schema.Builder.html" title="class in org.apache.beam.sdk.schemas">Schema.Builder</a></td>
<td class="colLast">
<div class="block">Builder class for building <a href="../../../../../org/apache/beam/sdk/schemas/Schema.html" title="class in org.apache.beam.sdk.schemas"><code>Schema</code></a> objects.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/Schema.Field.html" title="class in org.apache.beam.sdk.schemas">Schema.Field</a></td>
<td class="colLast">
<div class="block">Field of a row.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/Schema.Field.Builder.html" title="class in org.apache.beam.sdk.schemas">Schema.Field.Builder</a></td>
<td class="colLast">
<div class="block">Builder for <a href="../../../../../org/apache/beam/sdk/schemas/Schema.Field.html" title="class in org.apache.beam.sdk.schemas"><code>Schema.Field</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/Schema.FieldType.html" title="class in org.apache.beam.sdk.schemas">Schema.FieldType</a></td>
<td class="colLast">
<div class="block">A descriptor of a single field type.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/SchemaCoder.html" title="class in org.apache.beam.sdk.schemas">SchemaCoder</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block"><a href="../../../../../org/apache/beam/sdk/schemas/SchemaCoder.html" title="class in org.apache.beam.sdk.schemas"><code>SchemaCoder</code></a> is used as the coder for types that have schemas registered.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/SchemaRegistry.html" title="class in org.apache.beam.sdk.schemas">SchemaRegistry</a></td>
<td class="colLast">
<div class="block">A <a href="../../../../../org/apache/beam/sdk/schemas/SchemaRegistry.html" title="class in org.apache.beam.sdk.schemas"><code>SchemaRegistry</code></a> allows registering <a href="../../../../../org/apache/beam/sdk/schemas/Schema.html" title="class in org.apache.beam.sdk.schemas"><code>Schema</code></a>s for a given Java <code>Class</code> or a
<a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values"><code>TypeDescriptor</code></a>.</div>
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<caption><span>Enum Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Enum</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
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<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/Schema.TypeName.html" title="enum in org.apache.beam.sdk.schemas">Schema.TypeName</a></td>
<td class="colLast">
<div class="block">An enumerated list of type constructors.</div>
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</tbody>
</table>
</li>
<li class="blockList">
<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Exception Summary table, listing exceptions, and an explanation">
<caption><span>Exception Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Exception</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
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<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/NoSuchSchemaException.html" title="class in org.apache.beam.sdk.schemas">NoSuchSchemaException</a></td>
<td class="colLast">
<div class="block">Indicates that we are missing a schema for a type.</div>
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</tbody>
</table>
</li>
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<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Annotation Types Summary table, listing annotation types, and an explanation">
<caption><span>Annotation Types Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Annotation Type</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/beam/sdk/schemas/DefaultSchema.html" title="annotation in org.apache.beam.sdk.schemas">DefaultSchema</a></td>
<td class="colLast">
<div class="block">The <a href="../../../../../org/apache/beam/sdk/schemas/DefaultSchema.html" title="annotation in org.apache.beam.sdk.schemas"><code>DefaultSchema</code></a> annotation specifies a <a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html" title="interface in org.apache.beam.sdk.schemas"><code>SchemaProvider</code></a> class to handle obtaining
a schema and row for the specified class.</div>
</td>
</tr>
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<h2 title="Package org.apache.beam.sdk.schemas Description">Package org.apache.beam.sdk.schemas Description</h2>
<div class="block">Defines <a href="../../../../../org/apache/beam/sdk/schemas/Schema.html" title="class in org.apache.beam.sdk.schemas"><code>Schema</code></a> and other classes for representing schema'd
data in a <a href="../../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a>.
<p>For further details, see the documentation for each class in this package.</div>
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