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| <h2 title="Class MetricsUtil" class="title">Class MetricsUtil</h2> |
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| <pre>public class <span class="typeNameLabel">MetricsUtil</span> |
| extends java.lang.Object</pre> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/MetricsUtil.ReadableColMetricsStruct.html" title="class in org.apache.iceberg">MetricsUtil.ReadableColMetricsStruct</a></span></code> |
| <div class="block">A struct of readable metric values for a primitive column</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/MetricsUtil.ReadableMetricColDefinition.html" title="class in org.apache.iceberg">MetricsUtil.ReadableMetricColDefinition</a></span></code> |
| <div class="block">Fixed definition of a readable metric column, ie a mapping of a raw metric to a readable metric</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/MetricsUtil.ReadableMetricsStruct.html" title="class in org.apache.iceberg">MetricsUtil.ReadableMetricsStruct</a></span></code> |
| <div class="block">A struct, consisting of all <a href="../../../org/apache/iceberg/MetricsUtil.ReadableColMetricsStruct.html" title="class in org.apache.iceberg"><code>MetricsUtil.ReadableColMetricsStruct</code></a> for all primitive columns of the |
| table</div> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static java.util.List<<a href="../../../org/apache/iceberg/MetricsUtil.ReadableMetricColDefinition.html" title="class in org.apache.iceberg">MetricsUtil.ReadableMetricColDefinition</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/MetricsUtil.html#READABLE_METRIC_COLS">READABLE_METRIC_COLS</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/MetricsUtil.html#READABLE_METRICS">READABLE_METRICS</a></span></code> </td> |
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| <td class="colFirst"><code>static java.util.Map<java.lang.Integer,java.lang.Long></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/MetricsUtil.html#createNanValueCounts-java.util.stream.Stream-org.apache.iceberg.MetricsConfig-org.apache.iceberg.Schema-">createNanValueCounts</a></span>(java.util.stream.Stream<<a href="../../../org/apache/iceberg/FieldMetrics.html" title="class in org.apache.iceberg">FieldMetrics</a><?>> fieldMetrics, |
| <a href="../../../org/apache/iceberg/MetricsConfig.html" title="class in org.apache.iceberg">MetricsConfig</a> metricsConfig, |
| <a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> inputSchema)</code> |
| <div class="block">Construct mapping relationship between column id to NaN value counts from input metrics and |
| metrics config.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../org/apache/iceberg/MetricsModes.MetricsMode.html" title="interface in org.apache.iceberg">MetricsModes.MetricsMode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/MetricsUtil.html#metricsMode-org.apache.iceberg.Schema-org.apache.iceberg.MetricsConfig-int-">metricsMode</a></span>(<a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> inputSchema, |
| <a href="../../../org/apache/iceberg/MetricsConfig.html" title="class in org.apache.iceberg">MetricsConfig</a> metricsConfig, |
| int fieldId)</code> |
| <div class="block">Extract MetricsMode for the given field id from metrics config.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/MetricsUtil.html#readableMetricsSchema-org.apache.iceberg.Schema-org.apache.iceberg.Schema-">readableMetricsSchema</a></span>(<a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> dataTableSchema, |
| <a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> metadataTableSchema)</code> |
| <div class="block">Calculates a dynamic schema for readable_metrics to add to metadata tables.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../org/apache/iceberg/MetricsUtil.ReadableMetricsStruct.html" title="class in org.apache.iceberg">MetricsUtil.ReadableMetricsStruct</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/MetricsUtil.html#readableMetricsStruct-org.apache.iceberg.Schema-org.apache.iceberg.ContentFile-org.apache.iceberg.types.Types.StructType-">readableMetricsStruct</a></span>(<a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> schema, |
| <a href="../../../org/apache/iceberg/ContentFile.html" title="interface in org.apache.iceberg">ContentFile</a><?> file, |
| <a href="../../../org/apache/iceberg/types/Types.StructType.html" title="class in org.apache.iceberg.types">Types.StructType</a> projectedSchema)</code> |
| <div class="block">Return a readable metrics struct row from file metadata</div> |
| </td> |
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| <!-- --> |
| </a> |
| <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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| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
| <a name="READABLE_METRIC_COLS"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>READABLE_METRIC_COLS</h4> |
| <pre>public static final java.util.List<<a href="../../../org/apache/iceberg/MetricsUtil.ReadableMetricColDefinition.html" title="class in org.apache.iceberg">MetricsUtil.ReadableMetricColDefinition</a>> READABLE_METRIC_COLS</pre> |
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| <h4>READABLE_METRICS</h4> |
| <pre>public static final java.lang.String READABLE_METRICS</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../constant-values.html#org.apache.iceberg.MetricsUtil.READABLE_METRICS">Constant Field Values</a></dd> |
| </dl> |
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| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createNanValueCounts</h4> |
| <pre>public static java.util.Map<java.lang.Integer,java.lang.Long> createNanValueCounts(java.util.stream.Stream<<a href="../../../org/apache/iceberg/FieldMetrics.html" title="class in org.apache.iceberg">FieldMetrics</a><?>> fieldMetrics, |
| <a href="../../../org/apache/iceberg/MetricsConfig.html" title="class in org.apache.iceberg">MetricsConfig</a> metricsConfig, |
| <a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> inputSchema)</pre> |
| <div class="block">Construct mapping relationship between column id to NaN value counts from input metrics and |
| metrics config.</div> |
| </li> |
| </ul> |
| <a name="metricsMode-org.apache.iceberg.Schema-org.apache.iceberg.MetricsConfig-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>metricsMode</h4> |
| <pre>public static <a href="../../../org/apache/iceberg/MetricsModes.MetricsMode.html" title="interface in org.apache.iceberg">MetricsModes.MetricsMode</a> metricsMode(<a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> inputSchema, |
| <a href="../../../org/apache/iceberg/MetricsConfig.html" title="class in org.apache.iceberg">MetricsConfig</a> metricsConfig, |
| int fieldId)</pre> |
| <div class="block">Extract MetricsMode for the given field id from metrics config.</div> |
| </li> |
| </ul> |
| <a name="readableMetricsSchema-org.apache.iceberg.Schema-org.apache.iceberg.Schema-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>readableMetricsSchema</h4> |
| <pre>public static <a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> readableMetricsSchema(<a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> dataTableSchema, |
| <a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> metadataTableSchema)</pre> |
| <div class="block">Calculates a dynamic schema for readable_metrics to add to metadata tables. The type will be |
| the struct <a href="../../../org/apache/iceberg/MetricsUtil.ReadableColMetricsStruct.html" title="class in org.apache.iceberg"><code>MetricsUtil.ReadableColMetricsStruct</code></a>, composed of <a href="../../../org/apache/iceberg/MetricsUtil.ReadableMetricsStruct.html" title="class in org.apache.iceberg"><code>MetricsUtil.ReadableMetricsStruct</code></a> for all |
| primitive columns in the data table</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dataTableSchema</code> - schema of data table</dd> |
| <dd><code>metadataTableSchema</code> - schema of existing metadata table (to ensure id uniqueness)</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>schema of readable_metrics struct</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="readableMetricsStruct-org.apache.iceberg.Schema-org.apache.iceberg.ContentFile-org.apache.iceberg.types.Types.StructType-"> |
| <!-- --> |
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| <h4>readableMetricsStruct</h4> |
| <pre>public static <a href="../../../org/apache/iceberg/MetricsUtil.ReadableMetricsStruct.html" title="class in org.apache.iceberg">MetricsUtil.ReadableMetricsStruct</a> readableMetricsStruct(<a href="../../../org/apache/iceberg/Schema.html" title="class in org.apache.iceberg">Schema</a> schema, |
| <a href="../../../org/apache/iceberg/ContentFile.html" title="interface in org.apache.iceberg">ContentFile</a><?> file, |
| <a href="../../../org/apache/iceberg/types/Types.StructType.html" title="class in org.apache.iceberg.types">Types.StructType</a> projectedSchema)</pre> |
| <div class="block">Return a readable metrics struct row from file metadata</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>schema</code> - schema of original data table</dd> |
| <dd><code>file</code> - content file with metrics</dd> |
| <dd><code>projectedSchema</code> - user requested projection</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><a href="../../../org/apache/iceberg/MetricsUtil.ReadableMetricsStruct.html" title="class in org.apache.iceberg"><code>MetricsUtil.ReadableMetricsStruct</code></a></dd> |
| </dl> |
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