Oracle® Coherence Java API Reference
v3.5

E14977-01

com.tangosol.util.filter
Class IsNullFilter

java.lang.Object
  extended by com.tangosol.util.Base
      extended by com.tangosol.util.BitHelper
          extended by com.tangosol.util.ExternalizableHelper
              extended by com.tangosol.util.filter.ExtractorFilter
                  extended by com.tangosol.util.filter.ComparisonFilter
                      extended by com.tangosol.util.filter.EqualsFilter
                          extended by com.tangosol.util.filter.IsNullFilter
All Implemented Interfaces:
ExternalizableLite, PortableObject, Filter, EntryFilter, IndexAwareFilter, java.io.Serializable

public class IsNullFilter
extends EqualsFilter

Filter which compares the result of a method invocation with null.

Author:
cp/gg 2002.10.27

Field Summary
 
Fields inherited from class com.tangosol.util.filter.ComparisonFilter
m_oValue
 
Fields inherited from class com.tangosol.util.filter.ExtractorFilter
EVAL_COST, m_extractor
 
Constructor Summary
IsNullFilter()
          Default constructor (necessary for the ExternalizableLite interface).
IsNullFilter(java.lang.String sMethod)
          Construct a IsNullFilter for testing equality to null.
 
Method Summary
 
Methods inherited from class com.tangosol.util.filter.EqualsFilter
applyIndex, calculateEffectiveness, evaluateExtracted
 
Methods inherited from class com.tangosol.util.filter.ComparisonFilter
calculateIteratorEffectiveness, calculateMatchEffectiveness, calculateRangeEffectiveness, equals, getValue, hashCode, readExternal, readExternal, toString, writeExternal, writeExternal
 
Methods inherited from class com.tangosol.util.filter.ExtractorFilter
evaluate, evaluateEntry, extract, getValueExtractor
 
Methods inherited from class com.tangosol.util.BitHelper
countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, toBitString, toBitString, toBitString
 
Methods inherited from interface com.tangosol.util.filter.EntryFilter
evaluateEntry
 
Methods inherited from interface com.tangosol.util.Filter
evaluate
 

Constructor Detail

IsNullFilter

public IsNullFilter()
Default constructor (necessary for the ExternalizableLite interface).


IsNullFilter

public IsNullFilter(java.lang.String sMethod)
Construct a IsNullFilter for testing equality to null.

Parameters:
sMethod - the name of the method to invoke via reflection

Oracle® Coherence Java API Reference
v3.5

E14977-01

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