org.apache.expreval.expr.calculation
Class DelegateCalculation

java.lang.Object
  org.apache.expreval.expr.GenericExpression
      org.apache.expreval.expr.DelegateStmt<GenericCalculation>
          org.apache.expreval.expr.calculation.GenericCalculation
              org.apache.expreval.expr.calculation.DelegateCalculation

All Implemented Interfaces:

Serializable, GenericValue

public class DelegateCalculation
extends GenericCalculation

See Also:

Serialized Form

Field Summary

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

serialVersionUID

Constructor Summary

DelegateCalculation(GenericValue arg0, Operator operator, GenericValue arg1)

Method Summary

GenericValue	getOptimizedValue()
Object	getValue(HConnectionImpl conn, Object object)
Class<? extends GenericValue>	validateTypes(GenericValue parentExpr, boolean allowCollections)

Methods inherited from class org.apache.expreval.expr.calculation.GenericCalculation

asString, getOperator

Methods inherited from class org.apache.expreval.expr.DelegateStmt

getTypedExpr, setTypedExpr

Methods inherited from class org.apache.expreval.expr.GenericExpression

applyResultToAggregateValue, getConstantValue, getExprArg, getExpressionContext, getFilter, getGenericValueClass, getGenericValueList, getInvalidTypeMsg, getSubArgs, getTypeSignature, getValueWithCast, getValueWithCast, hasAColumnReference, initAggregateValue, isAColumnReference, isAConstant, isAnAggregateValue, isDefaultKeyword, newSingleColumnValueFilter, optimizeAllArgs, reset, setArg, setExpressionContext, useDecimal, validateNumericArgTypes, validateNumericTypes, validateParentClass

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegateCalculation

public DelegateCalculation(GenericValue arg0,
                           Operator operator,
                           GenericValue arg1)

Method Detail

validateTypes

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

Specified by:

validateTypes in interface GenericValue

Overrides:

validateTypes in class GenericExpression

Throws:

HBqlException

getOptimizedValue

public GenericValue getOptimizedValue()
                               throws HBqlException

Specified by:

getOptimizedValue in interface GenericValue

Overrides:

getOptimizedValue in class GenericExpression

Throws:

HBqlException

getValue

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

Throws:

HBqlException

ResultMissingColumnException

NullColumnValueException