org.apache.expreval.expr.nullcomp
Class GenericNullCompare

java.lang.Object
  extended by org.apache.expreval.expr.GenericExpression
      extended by org.apache.expreval.expr.DelegateStmt<T>
          extended by org.apache.expreval.expr.NotValue<GenericNullCompare>
              extended by org.apache.expreval.expr.nullcomp.GenericNullCompare
All Implemented Interfaces:
Serializable, BooleanValue, GenericValue
Direct Known Subclasses:
BooleanNullCompare, ByteNullCompare, DateNullCompare, DelegateNullCompare, NumberNullCompare, ObjectNullCompare, StringNullCompare

public abstract class GenericNullCompare
extends NotValue<GenericNullCompare>
implements BooleanValue

See Also:
Serialized Form

Field Summary
 
Fields inherited from interface org.apache.expreval.expr.node.GenericValue
serialVersionUID
 
Constructor Summary
protected GenericNullCompare(ExpressionType type, boolean not, GenericValue arg0)
           
 
Method Summary
 String asString()
           
 Boolean getValue(HConnectionImpl conn, Object object)
           
 
Methods inherited from class org.apache.expreval.expr.NotValue
isNot, notAsString
 
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, validateTypes
 
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, getFilter, getOptimizedValue, hasAColumnReference, initAggregateValue, isAColumnReference, isAConstant, isAnAggregateValue, isDefaultKeyword, reset, setExpressionContext, validateTypes
 

Constructor Detail

GenericNullCompare

protected GenericNullCompare(ExpressionType type,
                             boolean not,
                             GenericValue arg0)
Method Detail

asString

public String asString()
Specified by:
asString in interface GenericValue
Overrides:
asString in class GenericExpression

getValue

public Boolean getValue(HConnectionImpl conn,
                        Object object)
                 throws HBqlException,
                        ResultMissingColumnException
Specified by:
getValue in interface BooleanValue
Specified by:
getValue in interface GenericValue
Throws:
HBqlException
ResultMissingColumnException


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