org.apache.expreval.expr.function
Class NumberFunction

java.lang.Object
  org.apache.expreval.expr.GenericExpression
      org.apache.expreval.expr.function.GenericFunction
          org.apache.expreval.expr.function.NumberFunction

All Implemented Interfaces:

Serializable, GenericValue, NumberValue

public class NumberFunction
extends GenericFunction
implements NumberValue

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.expreval.expr.function.GenericFunction

GenericFunction.FunctionType

Field Summary

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

serialVersionUID

Constructor Summary

NumberFunction(GenericFunction.FunctionType functionType, List<GenericValue> exprs)

Method Summary

void	applyResultToAggregateValue(AggregateValue aggVal, org.apache.hadoop.hbase.client.Result result)
Number	getValue(HConnectionImpl conn, Object object)
void	initAggregateValue(AggregateValue aggregateValue)

Methods inherited from class org.apache.expreval.expr.function.GenericFunction

asString, getFunctionName, getFunctionType, getOptimizedValue, getTypeSignature, isAConstant, isAnAggregateValue, isConstantDate, isIntervalDate, validateTypes

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

getConstantValue, getExprArg, getExpressionContext, getFilter, getGenericValueClass, getGenericValueList, getInvalidTypeMsg, getSubArgs, getValueWithCast, getValueWithCast, hasAColumnReference, isAColumnReference, 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

asString, getFilter, getOptimizedValue, hasAColumnReference, isAColumnReference, isAConstant, isAnAggregateValue, isDefaultKeyword, reset, setExpressionContext, validateTypes

Constructor Detail

NumberFunction

public NumberFunction(GenericFunction.FunctionType functionType,
                      List<GenericValue> exprs)

Method Detail

initAggregateValue

public void initAggregateValue(AggregateValue aggregateValue)
                        throws HBqlException

Specified by:

initAggregateValue in interface GenericValue

Overrides:

initAggregateValue in class GenericExpression

Throws:

HBqlException

applyResultToAggregateValue

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

Specified by:

applyResultToAggregateValue in interface GenericValue

Overrides:

applyResultToAggregateValue in class GenericExpression

Throws:

HBqlException

ResultMissingColumnException

NullColumnValueException

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