org.apache.expreval.expr.calculation
Class NumericCalculation

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.NumericCalculation

All Implemented Interfaces:

Serializable, GenericValue, NumberValue

public class NumericCalculation
extends GenericCalculation
implements NumberValue

See Also:

Serialized Form

Field Summary

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

serialVersionUID

Constructor Summary

NumericCalculation(GenericValue arg0, Operator operator, GenericValue arg1)

Method Summary

Number	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, getOptimizedValue, 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

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

applyResultToAggregateValue, asString, getFilter, getOptimizedValue, hasAColumnReference, initAggregateValue, isAColumnReference, isAConstant, isAnAggregateValue, isDefaultKeyword, reset, setExpressionContext

Constructor Detail

NumericCalculation

public NumericCalculation(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

getValue

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

Specified by:

getValue in interface GenericValue

Specified by:

getValue in interface NumberValue

Throws:

HBqlException

ResultMissingColumnException

NullColumnValueException