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Oracle® Coherence Java API Reference Release 3.6.0.0 E15725-01 |
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java.lang.Object
com.tangosol.util.Base
com.tangosol.util.BitHelper
com.tangosol.util.ExternalizableHelper
com.tangosol.util.filter.NotFilter
public class NotFilter
Filter which negates the results of another filter.
Constructor Summary | |
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NotFilter() Default constructor (necessary for the ExternalizableLite interface). |
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NotFilter(Filter filter) Construct a negation filter. |
Method Summary | |
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Filter |
applyIndex(Map mapIndexes, Set setKeys) Filter remaining keys using a Map of available indexes. |
int |
calculateEffectiveness(Map mapIndexes, Set setKeys) Given a Map of available indexes, determine if this IndexAwareFilter can use any of the indexes to assist in its processing, and if so, determine how effective the use of that index would be. |
boolean |
equals(Object o) Compare the NotFilter with another object to determine equality. |
boolean |
evaluate(Object o) Apply the test to the object. |
boolean |
evaluateEntry(Map.Entry entry) Apply the test to a Map Entry. |
Filter |
getFilter() Obtain the Filter whose results are negated by this filter. |
protected Map |
getNonPartialIndexes(Map mapIndexes) Get a Map of the available non-partial indexes form the given Map of all available indexes. |
int |
hashCode() Determine a hash value for the NotFilter object according to the general Object.hashCode() contract. |
void |
readExternal(DataInput in) Restore the contents of this object by loading the object's state from the passed DataInput object. |
void |
readExternal(PofReader in) Restore the contents of a user type instance by reading its state using the specified PofReader object. |
String |
toString() Return a human-readable description for this Filter. |
void |
writeExternal(DataOutput out) Save the contents of this object by storing the object's state into the passed DataOutput object. |
void |
writeExternal(PofWriter out) Save the contents of a POF user type instance by writing its state using the specified PofWriter object. |
Methods inherited from class com.tangosol.util.BitHelper |
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countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, toBitString, toBitString, toBitString |
Constructor Detail |
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public NotFilter()
public NotFilter(Filter filter)
filter
- the filter whose results this Filter negatesMethod Detail |
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public boolean evaluate(Object o)
evaluate
in interface Filter
o
- the object to testpublic boolean evaluateEntry(Map.Entry entry)
evaluateEntry
in interface EntryFilter
entry
- the Map Entry to evaluate; never nullpublic int calculateEffectiveness(Map mapIndexes, Set setKeys)
calculateEffectiveness
in interface IndexAwareFilter
mapIndexes
- the available MapIndex
objects keyed by the related ValueExtractor; read-onlysetKeys
- the set of keys that will be filtered; read-onlypublic Filter applyIndex(Map mapIndexes, Set setKeys)
EntryFilter
) that can complete the task using an iterating implementation. If, on the other hand, the filter does fully evaluate the remaining keys using just the index information, then it should return null to indicate that no further filtering is necessary.applyIndex
in interface IndexAwareFilter
mapIndexes
- the available MapIndex
objects keyed by the related ValueExtractor; read-onlysetKeys
- the mutable set of keys that remain to be filteredFilter
object (which may be an EntryFilter
) that can be used to process the remaining keys, or null if no additional filter processing is necessaryprotected Map getNonPartialIndexes(Map mapIndexes)
mapIndexes
- the available MapIndex
objects keyed by the related ValueExtractor; read-onlyMapIndex
objectspublic Filter getFilter()
public boolean equals(Object o)
public int hashCode()
Object.hashCode()
contract.public String toString()
public void readExternal(DataInput in) throws IOException
readExternal
in interface ExternalizableLite
in
- the DataInput stream to read data from in order to restore the state of this objectIOException
- if an I/O exception occursNotActiveException
- if the object is not in its initial state, and therefore cannot be deserialized intopublic void writeExternal(DataOutput out) throws IOException
writeExternal
in interface ExternalizableLite
out
- the DataOutput stream to write the state of this object toIOException
- if an I/O exception occurspublic void readExternal(PofReader in) throws IOException
readExternal
in interface PortableObject
in
- the PofReader from which to read the object's stateIOException
- if an I/O error occurspublic void writeExternal(PofWriter out) throws IOException
writeExternal
in interface PortableObject
out
- the PofWriter to which to write the object's stateIOException
- if an I/O error occurs
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Oracle® Coherence Java API Reference Release 3.6.0.0 E15725-01 |
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