org.apache.expreval.expr.var
Class DelegateColumn

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

All Implemented Interfaces:

Serializable, GenericValue

public class DelegateColumn
extends GenericColumn<GenericValue>

See Also:

Serialized Form

Field Summary

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

serialVersionUID

Constructor Summary

DelegateColumn(String variableName)

Method Summary

GenericColumn<? extends GenericValue>	getTypedColumn()
Object	getValue(HConnectionImpl conn, Object object)
String	getVariableName()
void	setExpressionContext(MultipleExpressionContext context)
Class<? extends GenericValue>	validateTypes(GenericValue parentExpr, boolean allowCollections)

Methods inherited from class org.apache.expreval.expr.var.GenericColumn

applyResultToAggregateValue, asString, getColumnAttrib, getExpressionContext, getFieldType, getFilter, getOptimizedValue, hasAColumnReference, initAggregateValue, isAColumnReference, isAConstant, isAnAggregateValue, isDefaultKeyword, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegateColumn

public DelegateColumn(String variableName)

Method Detail

getTypedColumn

public GenericColumn<? extends GenericValue> getTypedColumn()

getVariableName

public String getVariableName()

Overrides:

getVariableName in class GenericColumn<GenericValue>

getValue

public Object getValue(HConnectionImpl conn,
                       Object object)
                throws HBqlException,
                       ResultMissingColumnException,
                       NullColumnValueException

Throws:

HBqlException

ResultMissingColumnException

NullColumnValueException

validateTypes

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

Specified by:

validateTypes in interface GenericValue

Overrides:

validateTypes in class GenericColumn<GenericValue>

Throws:

HBqlException

setExpressionContext

public void setExpressionContext(MultipleExpressionContext context)
                          throws HBqlException

Specified by:

setExpressionContext in interface GenericValue

Overrides:

setExpressionContext in class GenericColumn<GenericValue>

Throws:

HBqlException