org.apache.hadoop.hive.ql.exec.vector.udf
Class VectorUDFArgDesc

java.lang.Object
  org.apache.hadoop.hive.ql.exec.vector.udf.VectorUDFArgDesc

All Implemented Interfaces:

Serializable

public class VectorUDFArgDesc
extends Object
implements Serializable

Descriptor for function argument.

See Also:

Serialized Form

Constructor Summary

VectorUDFArgDesc()

Method Summary

int	getColumn()
int	getColumnNum()
ExprNodeConstantDesc	getConstExpr()
GenericUDF.DeferredObject	getDeferredJavaObject(int row, VectorizedRowBatch b, int argPosition, VectorExpressionWriter[] writers)
boolean	getIsConstant()
boolean	isConstant()
boolean	isVariable()
void	prepareConstant()
void	setColumnNum(int columnNum)
void	setConstant(ExprNodeConstantDesc expr) Set this argument to a constant value extracted from the expression tree.
void	setConstExpr(ExprNodeConstantDesc constExpr)
void	setIsConstant(boolean isConstant)
void	setVariable(int i) Set this argument to be a "variable" one which is to be taken from a specified column vector number i.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VectorUDFArgDesc

public VectorUDFArgDesc()

Method Detail

setConstant

public void setConstant(ExprNodeConstantDesc expr)

Set this argument to a constant value extracted from the expression tree.

prepareConstant

public void prepareConstant()

setVariable

public void setVariable(int i)

Set this argument to be a "variable" one which is to be taken from a specified column vector number i.

isConstant

public boolean isConstant()

isVariable

public boolean isVariable()

getColumn

public int getColumn()

getDeferredJavaObject

public GenericUDF.DeferredObject getDeferredJavaObject(int row,
                                                       VectorizedRowBatch b,
                                                       int argPosition,
                                                       VectorExpressionWriter[] writers)

getIsConstant

public boolean getIsConstant()

setIsConstant

public void setIsConstant(boolean isConstant)

getColumnNum

public int getColumnNum()

setColumnNum

public void setColumnNum(int columnNum)

getConstExpr

public ExprNodeConstantDesc getConstExpr()

setConstExpr

public void setConstExpr(ExprNodeConstantDesc constExpr)