org.apache.expreval.expr.var
Class GenericColumn<T extends GenericValue>

java.lang.Object
  org.apache.expreval.expr.var.GenericColumn<T>

All Implemented Interfaces:

Serializable, GenericValue

Direct Known Subclasses:

BooleanColumn, ByteColumn, CharColumn, DateColumn, DelegateColumn, DoubleColumn, FloatColumn, IntegerColumn, KeyColumn, LongColumn, ObjectColumn, ShortColumn, StringColumn

public abstract class GenericColumn<T extends GenericValue>
extends Object
implements GenericValue

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.apache.expreval.expr.node.GenericValue

serialVersionUID

Constructor Summary

protected

GenericColumn(ColumnAttrib attrib)

Method Summary

void	applyResultToAggregateValue(AggregateValue aggregateValue, org.apache.hadoop.hbase.client.Result result)
String	asString()
ColumnAttrib	getColumnAttrib()
protected MultipleExpressionContext	getExpressionContext()
protected FieldType	getFieldType()
org.apache.hadoop.hbase.filter.Filter	getFilter()
T	getOptimizedValue()
String	getVariableName()
boolean	hasAColumnReference()
void	initAggregateValue(AggregateValue aggregateValue)
boolean	isAColumnReference()
boolean	isAConstant()
boolean	isAnAggregateValue()
boolean	isDefaultKeyword()
void	reset()
void	setExpressionContext(MultipleExpressionContext context)
Class<? extends GenericValue>	validateTypes(GenericValue parentExpr, boolean allowCollections)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.expreval.expr.node.GenericValue

getValue

Constructor Detail

GenericColumn

protected GenericColumn(ColumnAttrib attrib)

Method Detail

getFieldType

protected FieldType getFieldType()

getColumnAttrib

public ColumnAttrib getColumnAttrib()

getVariableName

public String getVariableName()

getOptimizedValue

public T getOptimizedValue()
                                         throws HBqlException

Specified by:

getOptimizedValue in interface GenericValue

Throws:

HBqlException

isAConstant

public boolean isAConstant()

Specified by:

isAConstant in interface GenericValue

isDefaultKeyword

public boolean isDefaultKeyword()

Specified by:

isDefaultKeyword in interface GenericValue

isAnAggregateValue

public boolean isAnAggregateValue()

Specified by:

isAnAggregateValue in interface GenericValue

initAggregateValue

public void initAggregateValue(AggregateValue aggregateValue)
                        throws HBqlException

Specified by:

initAggregateValue in interface GenericValue

Throws:

HBqlException

applyResultToAggregateValue

public void applyResultToAggregateValue(AggregateValue aggregateValue,
                                        org.apache.hadoop.hbase.client.Result result)
                                 throws HBqlException

Specified by:

applyResultToAggregateValue in interface GenericValue

Throws:

HBqlException

hasAColumnReference

public boolean hasAColumnReference()

Specified by:

hasAColumnReference in interface GenericValue

isAColumnReference

public boolean isAColumnReference()

Specified by:

isAColumnReference in interface GenericValue

reset

public void reset()

Specified by:

reset in interface GenericValue

setExpressionContext

public void setExpressionContext(MultipleExpressionContext context)
                          throws HBqlException

Specified by:

setExpressionContext in interface GenericValue

Throws:

HBqlException

getExpressionContext

protected MultipleExpressionContext getExpressionContext()

validateTypes

public Class<? extends GenericValue> validateTypes(GenericValue parentExpr,
                                                   boolean allowCollections)
                                            throws HBqlException

Specified by:

validateTypes in interface GenericValue

Throws:

HBqlException

asString

public String asString()

Specified by:

asString in interface GenericValue

getFilter

public org.apache.hadoop.hbase.filter.Filter getFilter()
                                                throws HBqlException

Specified by:

getFilter in interface GenericValue

Throws:

HBqlException