org.apache.expreval.expr.function
Class StringFunction

java.lang.Object
  extended by org.apache.expreval.expr.GenericExpression
      extended by org.apache.expreval.expr.function.GenericFunction
          extended by org.apache.expreval.expr.function.StringFunction
All Implemented Interfaces:
Serializable, GenericValue, StringValue

public class StringFunction
extends GenericFunction
implements StringValue

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
StringFunction(GenericFunction.FunctionType functionType, List<GenericValue> exprs)
           
 
Method Summary
 String getValue(HConnectionImpl conn, Object object)
           
 
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
applyResultToAggregateValue, getConstantValue, getExprArg, getExpressionContext, getFilter, getGenericValueClass, getGenericValueList, getInvalidTypeMsg, getSubArgs, getValueWithCast, getValueWithCast, hasAColumnReference, initAggregateValue, 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
applyResultToAggregateValue, asString, getFilter, getOptimizedValue, hasAColumnReference, initAggregateValue, isAColumnReference, isAConstant, isAnAggregateValue, isDefaultKeyword, reset, setExpressionContext, validateTypes
 

Constructor Detail

StringFunction

public StringFunction(GenericFunction.FunctionType functionType,
                      List<GenericValue> exprs)
Method Detail

getValue

public String getValue(HConnectionImpl conn,
                       Object object)
                throws HBqlException,
                       ResultMissingColumnException,
                       NullColumnValueException
Specified by:
getValue in interface GenericValue
Specified by:
getValue in interface StringValue
Throws:
HBqlException
ResultMissingColumnException
NullColumnValueException


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