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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.iceberg.expressions</a></div> |
| <h2 title="Class Projections" class="title">Class Projections</h2> |
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| <pre>public class <span class="typeNameLabel">Projections</span> |
| extends java.lang.Object</pre> |
| <div class="block">Utils to project expressions on rows to expressions on partitions.</div> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Projections.ProjectionEvaluator.html" title="class in org.apache.iceberg.expressions">Projections.ProjectionEvaluator</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">A class that projects expressions for a table's data rows into expressions on the table's |
| partition values, for a table's <a href="../PartitionSpec.html" title="class in org.apache.iceberg"><code>partition spec</code></a>.</div> |
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| <td class="colFirst"><code>static <a href="Projections.ProjectionEvaluator.html" title="class in org.apache.iceberg.expressions">Projections.ProjectionEvaluator</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#inclusive(org.apache.iceberg.PartitionSpec)">inclusive</a></span>​(<a href="../PartitionSpec.html" title="class in org.apache.iceberg">PartitionSpec</a> spec)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates an inclusive <code>ProjectionEvaluator</code> for the <a href="../PartitionSpec.html" title="class in org.apache.iceberg"><code>spec</code></a>, defaulting |
| to case sensitive mode.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="Projections.ProjectionEvaluator.html" title="class in org.apache.iceberg.expressions">Projections.ProjectionEvaluator</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#inclusive(org.apache.iceberg.PartitionSpec,boolean)">inclusive</a></span>​(<a href="../PartitionSpec.html" title="class in org.apache.iceberg">PartitionSpec</a> spec, |
| boolean caseSensitive)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates an inclusive <code>ProjectionEvaluator</code> for the <a href="../PartitionSpec.html" title="class in org.apache.iceberg"><code>spec</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="Projections.ProjectionEvaluator.html" title="class in org.apache.iceberg.expressions">Projections.ProjectionEvaluator</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#strict(org.apache.iceberg.PartitionSpec)">strict</a></span>​(<a href="../PartitionSpec.html" title="class in org.apache.iceberg">PartitionSpec</a> spec)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a strict <code>ProjectionEvaluator</code> for the <a href="../PartitionSpec.html" title="class in org.apache.iceberg"><code>spec</code></a>, defaulting to |
| case sensitive mode.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <a href="Projections.ProjectionEvaluator.html" title="class in org.apache.iceberg.expressions">Projections.ProjectionEvaluator</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#strict(org.apache.iceberg.PartitionSpec,boolean)">strict</a></span>​(<a href="../PartitionSpec.html" title="class in org.apache.iceberg">PartitionSpec</a> spec, |
| boolean caseSensitive)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a strict <code>ProjectionEvaluator</code> for the <a href="../PartitionSpec.html" title="class in org.apache.iceberg"><code>spec</code></a>.</div> |
| </td> |
| </tr> |
| </table> |
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| <!-- --> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
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| <h4>inclusive</h4> |
| <pre class="methodSignature">public static <a href="Projections.ProjectionEvaluator.html" title="class in org.apache.iceberg.expressions">Projections.ProjectionEvaluator</a> inclusive​(<a href="../PartitionSpec.html" title="class in org.apache.iceberg">PartitionSpec</a> spec)</pre> |
| <div class="block">Creates an inclusive <code>ProjectionEvaluator</code> for the <a href="../PartitionSpec.html" title="class in org.apache.iceberg"><code>spec</code></a>, defaulting |
| to case sensitive mode. |
| |
| <p>An evaluator is used to project expressions for a table's data rows into expressions on the |
| table's partition values. The evaluator returned by this function is inclusive and will build |
| expressions with the following guarantee: if the original expression matches a row, then the |
| projected expression will match that row's partition. |
| |
| <p>Each predicate in the expression is projected using <a href="../transforms/Transform.html#project(java.lang.String,org.apache.iceberg.expressions.BoundPredicate)"><code>Transform.project(String, |
| BoundPredicate)</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>spec</code> - a partition spec</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an inclusive projection evaluator for the partition spec</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../transforms/Transform.html#project(java.lang.String,org.apache.iceberg.expressions.BoundPredicate)"><code>Inclusive transform used for each predicate</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="inclusive(org.apache.iceberg.PartitionSpec,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>inclusive</h4> |
| <pre class="methodSignature">public static <a href="Projections.ProjectionEvaluator.html" title="class in org.apache.iceberg.expressions">Projections.ProjectionEvaluator</a> inclusive​(<a href="../PartitionSpec.html" title="class in org.apache.iceberg">PartitionSpec</a> spec, |
| boolean caseSensitive)</pre> |
| <div class="block">Creates an inclusive <code>ProjectionEvaluator</code> for the <a href="../PartitionSpec.html" title="class in org.apache.iceberg"><code>spec</code></a>. |
| |
| <p>An evaluator is used to project expressions for a table's data rows into expressions on the |
| table's partition values. The evaluator returned by this function is inclusive and will build |
| expressions with the following guarantee: if the original expression matches a row, then the |
| projected expression will match that row's partition. |
| |
| <p>Each predicate in the expression is projected using <a href="../transforms/Transform.html#project(java.lang.String,org.apache.iceberg.expressions.BoundPredicate)"><code>Transform.project(String, |
| BoundPredicate)</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>spec</code> - a partition spec</dd> |
| <dd><code>caseSensitive</code> - whether the Projection should consider case sensitivity on column names or |
| not.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an inclusive projection evaluator for the partition spec</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../transforms/Transform.html#project(java.lang.String,org.apache.iceberg.expressions.BoundPredicate)"><code>Inclusive transform used for each predicate</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="strict(org.apache.iceberg.PartitionSpec)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>strict</h4> |
| <pre class="methodSignature">public static <a href="Projections.ProjectionEvaluator.html" title="class in org.apache.iceberg.expressions">Projections.ProjectionEvaluator</a> strict​(<a href="../PartitionSpec.html" title="class in org.apache.iceberg">PartitionSpec</a> spec)</pre> |
| <div class="block">Creates a strict <code>ProjectionEvaluator</code> for the <a href="../PartitionSpec.html" title="class in org.apache.iceberg"><code>spec</code></a>, defaulting to |
| case sensitive mode. |
| |
| <p>An evaluator is used to project expressions for a table's data rows into expressions on the |
| table's partition values. The evaluator returned by this function is strict and will build |
| expressions with the following guarantee: if the projected expression matches a partition, then |
| the original expression will match all rows in that partition. |
| |
| <p>Each predicate in the expression is projected using <a href="../transforms/Transform.html#projectStrict(java.lang.String,org.apache.iceberg.expressions.BoundPredicate)"><code>Transform.projectStrict(String, |
| BoundPredicate)</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>spec</code> - a partition spec</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a strict projection evaluator for the partition spec</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../transforms/Transform.html#projectStrict(java.lang.String,org.apache.iceberg.expressions.BoundPredicate)"><code>Strict transform used for each predicate</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="strict(org.apache.iceberg.PartitionSpec,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>strict</h4> |
| <pre class="methodSignature">public static <a href="Projections.ProjectionEvaluator.html" title="class in org.apache.iceberg.expressions">Projections.ProjectionEvaluator</a> strict​(<a href="../PartitionSpec.html" title="class in org.apache.iceberg">PartitionSpec</a> spec, |
| boolean caseSensitive)</pre> |
| <div class="block">Creates a strict <code>ProjectionEvaluator</code> for the <a href="../PartitionSpec.html" title="class in org.apache.iceberg"><code>spec</code></a>. |
| |
| <p>An evaluator is used to project expressions for a table's data rows into expressions on the |
| table's partition values. The evaluator returned by this function is strict and will build |
| expressions with the following guarantee: if the projected expression matches a partition, then |
| the original expression will match all rows in that partition. |
| |
| <p>Each predicate in the expression is projected using <a href="../transforms/Transform.html#projectStrict(java.lang.String,org.apache.iceberg.expressions.BoundPredicate)"><code>Transform.projectStrict(String, |
| BoundPredicate)</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>spec</code> - a partition spec</dd> |
| <dd><code>caseSensitive</code> - whether the Projection should consider case sensitivity on column names or |
| not.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a strict projection evaluator for the partition spec</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../transforms/Transform.html#projectStrict(java.lang.String,org.apache.iceberg.expressions.BoundPredicate)"><code>Strict transform used for each predicate</code></a></dd> |
| </dl> |
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