org.apache.hadoop.hive.ql.exec.vector.expressions

Class MurmurHashStringColStringCol

java.lang.Object

org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

org.apache.hadoop.hive.ql.exec.vector.expressions.MurmurHashExpression

org.apache.hadoop.hive.ql.exec.vector.expressions.MurmurHashStringColStringCol

All Implemented Interfaces:

Serializable

public class MurmurHashStringColStringCol
extends MurmurHashExpression

Vectorized expression for hash(Column[string], Column[string]).

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

childExpressions, inputColumnNum, inputDataTypePhysicalVariations, inputTypeInfos, LOG, outputColumnNum, outputDataTypePhysicalVariation, outputTypeInfo

Constructor Summary

Constructors

Constructor and Description
MurmurHashStringColStringCol()
MurmurHashStringColStringCol(int colNumFirst, int colNumSecond, int outputColumnNum)

Method Summary

Modifier and Type	Method and Description
protected void	hash(ColumnVector inputColVector1, ColumnVector inputColVector2, LongColumnVector outputColVector, int i, ByteBuffer byteBuffer) The actual hash method for an item in the input vectors.
protected void	setArguments(VectorExpressionDescriptor.Builder builder)

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.MurmurHashExpression

evaluate, getDescriptor, vectorExpressionParameters

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

displayArrayOfUtf8ByteArrays, displayUtf8Bytes, doTransientInit, doTransientInit, evaluateChildren, getChildExpressions, getChildExpressionsForTransientInit, getColumnParamString, getDoubleValueParamString, getInputDataTypePhysicalVariations, getInputTypeInfos, getLongValueParamString, getOutputColumnNum, getOutputColumnVectorType, getOutputDataTypePhysicalVariation, getOutputTypeInfo, getParamTypeString, getTypeName, init, setChildExpressions, setInputDataTypePhysicalVariations, setInputTypeInfos, setOutputDataTypePhysicalVariation, setOutputTypeInfo, shouldConvertDecimal64ToDecimal, supportsCheckedExecution, toString, transientInit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MurmurHashStringColStringCol

public MurmurHashStringColStringCol()

MurmurHashStringColStringCol

public MurmurHashStringColStringCol(int colNumFirst,
                                    int colNumSecond,
                                    int outputColumnNum)

Method Detail

hash

protected void hash(ColumnVector inputColVector1,
                    ColumnVector inputColVector2,
                    LongColumnVector outputColVector,
                    int i,
                    ByteBuffer byteBuffer)

Description copied from class: MurmurHashExpression

The actual hash method for an item in the input vectors. This implementation is supposed to be in line with non-vectorized one (ObjectInspectorUtils.getBucketHashCode) for multiple fields. The method is abstract and is supposed to be implemented in subclasses.

Specified by:

hash in class MurmurHashExpression

setArguments

protected void setArguments(VectorExpressionDescriptor.Builder builder)

Specified by:

setArguments in class MurmurHashExpression