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

Class StringGroupColConcatStringScalar

java.lang.Object

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

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

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

StringGroupColConcatCharScalar, StringGroupColConcatVarCharScalar

public class StringGroupColConcatStringScalar
extends VectorExpression

Vectorized instruction to concatenate a string column to a scalar and put the result in an output column.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

VectorExpression.Type

Field Summary

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

childExpressions, inputTypes, outputType

Constructor Summary

Constructors

Constructor and Description
StringGroupColConcatStringScalar()
StringGroupColConcatStringScalar(int colNum, byte[] value, int outputColumn)

Method Summary

Methods

Modifier and Type	Method and Description
void	evaluate(VectorizedRowBatch batch) This is the primary method to implement expression logic.
int	getColNum()
VectorExpressionDescriptor.Descriptor	getDescriptor()
int	getOutputColumn() Returns the index of the output column in the array of column vectors.
String	getOutputType() Returns type of the output column.
byte[]	getValue()
void	setColNum(int colNum)
void	setOutputColumn(int outputColumn)
void	setValue(byte[] value)

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

evaluateChildren, getChildExpressions, getInputTypes, setChildExpressions, setInputTypes, setOutputType, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

StringGroupColConcatStringScalar

public StringGroupColConcatStringScalar(int colNum,
                                byte[] value,
                                int outputColumn)

StringGroupColConcatStringScalar

public StringGroupColConcatStringScalar()

Method Detail

evaluate

public void evaluate(VectorizedRowBatch batch)

Description copied from class: VectorExpression

This is the primary method to implement expression logic.

Specified by:

evaluate in class VectorExpression

getOutputColumn

public int getOutputColumn()

Description copied from class: VectorExpression

Returns the index of the output column in the array of column vectors. If not applicable, -1 is returned.

Specified by:

getOutputColumn in class VectorExpression

Returns:

Index of the output column

getOutputType

public String getOutputType()

Description copied from class: VectorExpression

Returns type of the output column.

Overrides:

getOutputType in class VectorExpression

getColNum

public int getColNum()

setColNum

public void setColNum(int colNum)

getValue

public byte[] getValue()

setValue

public void setValue(byte[] value)

setOutputColumn

public void setOutputColumn(int outputColumn)

getDescriptor

public VectorExpressionDescriptor.Descriptor getDescriptor()

Specified by:

getDescriptor in class VectorExpression