Class ConstantColumnTransformer
- java.lang.Object
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- org.apache.iotdb.db.mpp.transformation.dag.column.ColumnTransformer
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- org.apache.iotdb.db.mpp.transformation.dag.column.leaf.LeafColumnTransformer
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- org.apache.iotdb.db.mpp.transformation.dag.column.leaf.ConstantColumnTransformer
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public class ConstantColumnTransformer extends LeafColumnTransformer
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Field Summary
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Fields inherited from class org.apache.iotdb.db.mpp.transformation.dag.column.ColumnTransformer
columnCache, referenceCount, returnType
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Constructor Summary
Constructors Constructor Description ConstantColumnTransformer(org.apache.iotdb.tsfile.read.common.type.Type returnType, org.apache.iotdb.tsfile.read.common.block.column.Column value)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidinitFromTsBlock(org.apache.iotdb.tsfile.read.common.block.TsBlock input)-
Methods inherited from class org.apache.iotdb.db.mpp.transformation.dag.column.leaf.LeafColumnTransformer
checkType, evaluate
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Methods inherited from class org.apache.iotdb.db.mpp.transformation.dag.column.ColumnTransformer
addReferenceCount, close, getColumn, getColumnCachePositionCount, getType, initializeColumnCache, isReturnTypeNumeric, tryEvaluate
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Method Detail
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initFromTsBlock
public void initFromTsBlock(org.apache.iotdb.tsfile.read.common.block.TsBlock input)
- Specified by:
initFromTsBlockin classLeafColumnTransformer
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