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

Class ConstantVectorExpression

java.lang.Object

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

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

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

FilterConstantBooleanVectorExpression

public class ConstantVectorExpression
extends VectorExpression

Constant is represented as a vector with repeating values.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected long	longValue

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
ConstantVectorExpression()
ConstantVectorExpression(int outputColumnNum, byte[] value, TypeInfo outputTypeInfo)
ConstantVectorExpression(int outputColumnNum, double value, TypeInfo outputTypeInfo)
ConstantVectorExpression(int outputColumnNum, HiveChar value, TypeInfo outputTypeInfo)
ConstantVectorExpression(int outputColumnNum, HiveDecimal value, TypeInfo outputTypeInfo)
ConstantVectorExpression(int outputColumnNum, HiveIntervalDayTime value, TypeInfo outputTypeInfo)
ConstantVectorExpression(int outputColumnNum, HiveVarchar value, TypeInfo outputTypeInfo)
ConstantVectorExpression(int outputColumnNum, long value, TypeInfo outputTypeInfo)
ConstantVectorExpression(int outputColumnNum, Timestamp value, TypeInfo outputTypeInfo)
ConstantVectorExpression(int outputColumnNum, TypeInfo outputTypeInfo, boolean isNull)

Method Summary

Modifier and Type	Method and Description
static ConstantVectorExpression	create(int outputColumnNum, Object constantValue, TypeInfo outputTypeInfo)
static ConstantVectorExpression	createStruct(int outputColumnNum, Object value, TypeInfo outputTypeInfo)
void	evaluate(VectorizedRowBatch vrg) This is the primary method to implement expression logic.
byte[]	getBytesValue()
HiveDecimal	getDecimalValue()
VectorExpressionDescriptor.Descriptor	getDescriptor()
double	getDoubleValue()
HiveIntervalDayTime	getIntervalDayTimeValue()
boolean	getIsNullValue()
long	getLongValue()
Timestamp	getTimestampValue()
Object	getValue()
void	setBytesValue(byte[] bytesValue)
void	setDecimalValue(HiveDecimal decimalValue)
void	setDoubleValue(double doubleValue)
void	setIntervalDayTimeValue(HiveIntervalDayTime intervalDayTimeValue)
void	setLongValue(long longValue)
void	setStructValue(Object structValue)
void	setTimestampValue(Timestamp timestampValue)
String	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

Field Detail

longValue

protected long longValue

Constructor Detail

ConstantVectorExpression

public ConstantVectorExpression()

ConstantVectorExpression

public ConstantVectorExpression(int outputColumnNum,
                                long value,
                                TypeInfo outputTypeInfo)
                         throws HiveException

Throws:

HiveException

ConstantVectorExpression

public ConstantVectorExpression(int outputColumnNum,
                                double value,
                                TypeInfo outputTypeInfo)
                         throws HiveException

Throws:

HiveException

ConstantVectorExpression

public ConstantVectorExpression(int outputColumnNum,
                                byte[] value,
                                TypeInfo outputTypeInfo)
                         throws HiveException

Throws:

HiveException

ConstantVectorExpression

public ConstantVectorExpression(int outputColumnNum,
                                HiveChar value,
                                TypeInfo outputTypeInfo)
                         throws HiveException

Throws:

HiveException

ConstantVectorExpression

public ConstantVectorExpression(int outputColumnNum,
                                HiveVarchar value,
                                TypeInfo outputTypeInfo)
                         throws HiveException

Throws:

HiveException

ConstantVectorExpression

public ConstantVectorExpression(int outputColumnNum,
                                HiveDecimal value,
                                TypeInfo outputTypeInfo)
                         throws HiveException

Throws:

HiveException

ConstantVectorExpression

public ConstantVectorExpression(int outputColumnNum,
                                Timestamp value,
                                TypeInfo outputTypeInfo)
                         throws HiveException

Throws:

HiveException

ConstantVectorExpression

public ConstantVectorExpression(int outputColumnNum,
                                HiveIntervalDayTime value,
                                TypeInfo outputTypeInfo)
                         throws HiveException

Throws:

HiveException

ConstantVectorExpression

public ConstantVectorExpression(int outputColumnNum,
                                TypeInfo outputTypeInfo,
                                boolean isNull)
                         throws HiveException

Throws:

HiveException

Method Detail

createStruct

public static ConstantVectorExpression createStruct(int outputColumnNum,
                                                    Object value,
                                                    TypeInfo outputTypeInfo)
                                             throws HiveException

Throws:

HiveException

create

public static ConstantVectorExpression create(int outputColumnNum,
                                              Object constantValue,
                                              TypeInfo outputTypeInfo)
                                       throws HiveException

Throws:

HiveException

evaluate

public void evaluate(VectorizedRowBatch vrg)

Description copied from class: VectorExpression

This is the primary method to implement expression logic.

Specified by:

evaluate in class VectorExpression

getLongValue

public long getLongValue()

setLongValue

public void setLongValue(long longValue)

getDoubleValue

public double getDoubleValue()

setDoubleValue

public void setDoubleValue(double doubleValue)

getBytesValue

public byte[] getBytesValue()

setBytesValue

public void setBytesValue(byte[] bytesValue)

setDecimalValue

public void setDecimalValue(HiveDecimal decimalValue)

getDecimalValue

public HiveDecimal getDecimalValue()

setTimestampValue

public void setTimestampValue(Timestamp timestampValue)

getTimestampValue

public Timestamp getTimestampValue()

setIntervalDayTimeValue

public void setIntervalDayTimeValue(HiveIntervalDayTime intervalDayTimeValue)

getIntervalDayTimeValue

public HiveIntervalDayTime getIntervalDayTimeValue()

getValue

public Object getValue()

setStructValue

public void setStructValue(Object structValue)
                    throws HiveException

Throws:

HiveException

vectorExpressionParameters

public String vectorExpressionParameters()

Specified by:

vectorExpressionParameters in class VectorExpression

getDescriptor

public VectorExpressionDescriptor.Descriptor getDescriptor()

Specified by:

getDescriptor in class VectorExpression

getIsNullValue

public boolean getIsNullValue()