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| <div class="subTitle">org.apache.drill.metastore.rdbms.transform</div> |
| <h2 title="Interface MetadataMapper" class="title">Interface MetadataMapper<U,R extends org.jooq.Record></h2> |
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| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>U</code> - Metastore component metadata type</dd> |
| <dd><code>R</code> - RDBMS table record type</dd> |
| </dl> |
| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/AbstractMetadataMapper.html" title="class in org.apache.drill.metastore.rdbms.transform">AbstractMetadataMapper</a>, <a href="../../../../../../org/apache/drill/metastore/rdbms/components/tables/TablesMetadataMapper.html" title="class in org.apache.drill.metastore.rdbms.components.tables">TablesMetadataMapper</a>, <a href="../../../../../../org/apache/drill/metastore/rdbms/components/tables/TablesMetadataMapper.FileMapper.html" title="class in org.apache.drill.metastore.rdbms.components.tables">TablesMetadataMapper.FileMapper</a>, <a href="../../../../../../org/apache/drill/metastore/rdbms/components/tables/TablesMetadataMapper.PartitionMapper.html" title="class in org.apache.drill.metastore.rdbms.components.tables">TablesMetadataMapper.PartitionMapper</a>, <a href="../../../../../../org/apache/drill/metastore/rdbms/components/tables/TablesMetadataMapper.RowGroupMapper.html" title="class in org.apache.drill.metastore.rdbms.components.tables">TablesMetadataMapper.RowGroupMapper</a>, <a href="../../../../../../org/apache/drill/metastore/rdbms/components/tables/TablesMetadataMapper.SegmentMapper.html" title="class in org.apache.drill.metastore.rdbms.components.tables">TablesMetadataMapper.SegmentMapper</a>, <a href="../../../../../../org/apache/drill/metastore/rdbms/components/tables/TablesMetadataMapper.TableMapper.html" title="class in org.apache.drill.metastore.rdbms.components.tables">TablesMetadataMapper.TableMapper</a></dd> |
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| <pre>public interface <span class="typeNameLabel">MetadataMapper<U,R extends org.jooq.Record></span></pre> |
| <div class="block">Provides various mapping, transformation methods for the given |
| RDBMS table and Metastore component metadata unit.</div> |
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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> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">U</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html#emptyUnit--">emptyUnit</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>org.jooq.Table<<a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">R</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html#table--">table</a></span>()</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>org.jooq.Condition</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html#toCondition-org.apache.drill.metastore.expressions.FilterExpression-">toCondition</a></span>(<a href="../../../../../../org/apache/drill/metastore/expressions/FilterExpression.html" title="interface in org.apache.drill.metastore.expressions">FilterExpression</a> filter)</code> |
| <div class="block">Converts Metastore filter expression into JOOQ condition instance |
| which will be used as where clause in SQL query.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><org.jooq.Condition></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html#toDeleteConditions-java.util.List-">toDeleteConditions</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">U</a>> units)</code> |
| <div class="block">Since data in Metastore is deleted by partition, extracts |
| partitions values from given list of Metastore component metadata units |
| and creates list of delete conditions based on them.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><org.jooq.Field<?>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html#toFields-java.util.List-">toFields</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/drill/metastore/MetastoreColumn.html" title="enum in org.apache.drill.metastore">MetastoreColumn</a>> columns)</code> |
| <div class="block">Matches given list of Metastore columns to the available |
| RDBMS table columns.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">R</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html#toRecord-U-">toRecord</a></span>(<a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">U</a> unit)</code> |
| <div class="block">Converts Metastore component metadata unit into RDBMS table record.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">U</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html#toUnit-org.jooq.Record-">toUnit</a></span>(org.jooq.Record record)</code> |
| <div class="block">Converts RDBMS table record into Metastore component metadata unit.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </li> |
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| <h4>table</h4> |
| <pre>org.jooq.Table<<a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">R</a>> table()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>RDBMS table instance</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="emptyUnit--"> |
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| <ul class="blockList"> |
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| <h4>emptyUnit</h4> |
| <pre><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">U</a> emptyUnit()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Metastore component metadata unit instance with all fields set to null</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toUnit-org.jooq.Record-"> |
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| <h4>toUnit</h4> |
| <pre><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">U</a> toUnit(org.jooq.Record record)</pre> |
| <div class="block">Converts RDBMS table record into Metastore component metadata unit.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>record</code> - RDBMS table record</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Metastore component metadata unit instance</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toRecord-java.lang.Object-"> |
| <!-- --> |
| </a><a name="toRecord-U-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>toRecord</h4> |
| <pre><a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">R</a> toRecord(<a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">U</a> unit)</pre> |
| <div class="block">Converts Metastore component metadata unit into RDBMS table record.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>unit</code> - Metastore component metadata unit</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>RDBMS table record instance</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toFields-java.util.List-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>toFields</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><org.jooq.Field<?>> toFields(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/drill/metastore/MetastoreColumn.html" title="enum in org.apache.drill.metastore">MetastoreColumn</a>> columns)</pre> |
| <div class="block">Matches given list of Metastore columns to the available |
| RDBMS table columns.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>columns</code> - list of Metastore columns</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>list of RDBMS table fields</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toCondition-org.apache.drill.metastore.expressions.FilterExpression-"> |
| <!-- --> |
| </a> |
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| <h4>toCondition</h4> |
| <pre>org.jooq.Condition toCondition(<a href="../../../../../../org/apache/drill/metastore/expressions/FilterExpression.html" title="interface in org.apache.drill.metastore.expressions">FilterExpression</a> filter)</pre> |
| <div class="block">Converts Metastore filter expression into JOOQ condition instance |
| which will be used as where clause in SQL query.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>filter</code> - filter expression</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>JOOQ condition instance</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toDeleteConditions-java.util.List-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
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| <h4>toDeleteConditions</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><org.jooq.Condition> toDeleteConditions(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/drill/metastore/rdbms/transform/MetadataMapper.html" title="type parameter in MetadataMapper">U</a>> units)</pre> |
| <div class="block">Since data in Metastore is deleted by partition, extracts |
| partitions values from given list of Metastore component metadata units |
| and creates list of delete conditions based on them.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>units</code> - list of Metastore component metadata units</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>list of JOOQ condition instances</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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