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| <div class="subTitle">org.apache.beam.sdk.schemas</div> |
| <h2 title="Interface SchemaProvider" class="title">Interface SchemaProvider</h2> |
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| <dd>java.io.Serializable</dd> |
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| <pre><a href="../../../../../org/apache/beam/sdk/annotations/Experimental.html" title="annotation in org.apache.beam.sdk.annotations">@Experimental</a>(<a href="../../../../../org/apache/beam/sdk/annotations/Experimental.html#value--">value</a>=<a href="../../../../../org/apache/beam/sdk/annotations/Experimental.Kind.html#SCHEMAS">SCHEMAS</a>) |
| public interface <span class="typeNameLabel">SchemaProvider</span> |
| extends java.io.Serializable</pre> |
| <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. One example use: creating a <a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html" title="interface in org.apache.beam.sdk.schemas"><code>SchemaProvider</code></a> that |
| contacts an external schema-registry service to determine the schema for a type.</div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><T> <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/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><<a href="../../../../../org/apache/beam/sdk/values/Row.html" title="class in org.apache.beam.sdk.values">Row</a>,T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html#fromRowFunction-org.apache.beam.sdk.values.TypeDescriptor-">fromRowFunction</a></span>(<a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values">TypeDescriptor</a><T> typeDescriptor)</code> |
| <div class="block">Given a type, returns a function that converts from a <a href="../../../../../org/apache/beam/sdk/values/Row.html" title="class in org.apache.beam.sdk.values"><code>Row</code></a> object to that type.</div> |
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| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html#schemaFor-org.apache.beam.sdk.values.TypeDescriptor-">schemaFor</a></span>(<a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values">TypeDescriptor</a><T> typeDescriptor)</code> |
| <div class="block">Lookup a schema for the given type.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><T> <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/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><T,<a href="../../../../../org/apache/beam/sdk/values/Row.html" title="class in org.apache.beam.sdk.values">Row</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/schemas/SchemaProvider.html#toRowFunction-org.apache.beam.sdk.values.TypeDescriptor-">toRowFunction</a></span>(<a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values">TypeDescriptor</a><T> typeDescriptor)</code> |
| <div class="block">Given a type, return a function that converts that type to a <a href="../../../../../org/apache/beam/sdk/values/Row.html" title="class in org.apache.beam.sdk.values"><code>Row</code></a> object If no schema |
| exists, returns null.</div> |
| </td> |
| </tr> |
| </table> |
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| <h4>schemaFor</h4> |
| <pre><T> <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/schemas/Schema.html" title="class in org.apache.beam.sdk.schemas">Schema</a> schemaFor(<a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values">TypeDescriptor</a><T> typeDescriptor)</pre> |
| <div class="block">Lookup a schema for the given type. If no schema exists, returns null.</div> |
| </li> |
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| <a name="toRowFunction-org.apache.beam.sdk.values.TypeDescriptor-"> |
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| <h4>toRowFunction</h4> |
| <pre><T> <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/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><T,<a href="../../../../../org/apache/beam/sdk/values/Row.html" title="class in org.apache.beam.sdk.values">Row</a>> toRowFunction(<a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values">TypeDescriptor</a><T> typeDescriptor)</pre> |
| <div class="block">Given a type, return a function that converts that type to a <a href="../../../../../org/apache/beam/sdk/values/Row.html" title="class in org.apache.beam.sdk.values"><code>Row</code></a> object If no schema |
| exists, returns null.</div> |
| </li> |
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| <h4>fromRowFunction</h4> |
| <pre><T> <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/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><<a href="../../../../../org/apache/beam/sdk/values/Row.html" title="class in org.apache.beam.sdk.values">Row</a>,T> fromRowFunction(<a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values">TypeDescriptor</a><T> typeDescriptor)</pre> |
| <div class="block">Given a type, returns a function that converts from a <a href="../../../../../org/apache/beam/sdk/values/Row.html" title="class in org.apache.beam.sdk.values"><code>Row</code></a> object to that type. If no |
| schema exists, returns null.</div> |
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