Package com.tangosol.util

Interface Filter<T>

Type Parameters:

T - the type of the input argument to the filter

All Superinterfaces:

Serializable

All Known Subinterfaces:

EntryFilter<K,V>, IndexAwareFilter<K,V>, QueryRecorderFilter<T>

All Known Implementing Classes:

AbstractQueryRecorderFilter, AllFilter, AlwaysFilter, AndFilter, AnyFilter, ArrayFilter, BetweenFilter, CacheEventFilter, ClassFilter, ComparisonFilter, ContainsAllFilter, ContainsAnyFilter, ContainsFilter, EqualsFilter, ExtractorFilter, GreaterEqualsFilter, GreaterFilter, InetAddressHelper.RoutableFilter, InetAddressHelper.SubnetMaskFilter, InFilter, InKeySetFilter, IsNotNullFilter, IsNullFilter, KeyAssociatedFilter, KeyFilter, LessEqualsFilter, LessFilter, LikeFilter, LimitFilter, LocalCacheAsynchronousMapListener.NonSyntheticEntryFilter, MapEventFilter, MapEventTransformerFilter, NeverFilter, NonSyntheticEntryFilter, NotEqualsFilter, NotFilter, NullFilter, ObjectNameExcludeFilter, OrFilter, PartitionedCacheAsynchronousMapListener.NonSyntheticEntryFilter, PartitionedCacheSyntheticDeleteMapListener.JCacheExpiryEntryFilter, PartitionedFilter, PassThroughFilterAdapter, PredicateFilter, PresentFilter, PriorityFilter, RegexFilter, ScriptFilter, SimpleAssignmentStrategy.AnalysisContext.NotOwnedFilter, SimpleAssignmentStrategy.AnalysisContext.SafetyFilter, SimpleAssignmentStrategy.AnalysisContext.UnderloadedFilter, SimpleOverflowMap.FrontFilterConverter, ValueChangeEventFilter, WrapperQueryRecorderFilter, XorFilter

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Filter<T>
extends Serializable

Provide for "pluggable" conditional behavior.

Since:

1.0

Author:

cp 1997.09.05, as 2014.06.15

Method Summary

Modifier and Type	Method	Description
default Filter	and(Filter other)	Return a composed filter that represents a short-circuiting logical AND of this filter and another.
default LimitFilter<T>	asLimitFilter(int cPageSize)	Return a limit filter based on this filter.
default <K> KeyAssociatedFilter<T>	associatedWith(K key)	Return a key associated filter based on this filter and a specified key.
boolean	evaluate(T o)	Apply the test to the input argument.
default <K> InKeySetFilter<T>	forKeys(Set<K> setKeys)	Return a filter that will only be evaluated within specified key set.
default PartitionedFilter<T>	forPartitions(PartitionSet partitions)	Return a partitioned filter for a specified partition set.
default Filter	or(Filter other)	Return a composed predicate that represents a short-circuiting logical OR of this predicate and another.
default String	toExpression()	Return a string expression for this filter.
default Filter	xor(Filter other)	Return a composed predicate that represents a logical XOR of this predicate and another.

Method Detail

evaluate

boolean evaluate(T o)

Apply the test to the input argument.

Parameters:

o - the input argument to evaluate

Returns:

true if the input argument matches the filter, otherwise false

toExpression

default String toExpression()

Return a string expression for this filter.

Returns:

a string expression for this filter

and

default Filter and(Filter other)

Return a composed filter that represents a short-circuiting logical AND of this filter and another. When evaluating the composed filter, if this filter is false, then the other filter is not evaluated.

Any exceptions thrown during evaluation of either filter are relayed to the caller; if evaluation of this filter throws an exception, the other filter will not be evaluated.

Parameters:

other - a filter that will be logically-ANDed with this filter

Returns:

a composed filter that represents the short-circuiting logical AND of this filter and the other filter

or

default Filter or(Filter other)

Return a composed predicate that represents a short-circuiting logical OR of this predicate and another. When evaluating the composed predicate, if this predicate is true, then the other predicate is not evaluated.

Any exceptions thrown during evaluation of either predicate are relayed to the caller; if evaluation of this predicate throws an exception, the other predicate will not be evaluated.

Parameters:

other - a predicate that will be logically-ORed with this predicate

Returns:

a composed predicate that represents the short-circuiting logical OR of this predicate and the other predicate

xor

default Filter xor(Filter other)

Return a composed predicate that represents a logical XOR of this predicate and another.

Any exceptions thrown during evaluation of either predicate are relayed to the caller; if evaluation of this predicate throws an exception, the other predicate will not be evaluated.

Parameters:

other - a predicate that will be logically-XORed with this predicate

Returns:

a composed predicate that represents the logical XOR of this predicate and the other predicate

associatedWith

default <K> KeyAssociatedFilter<T> associatedWith(K key)

Return a key associated filter based on this filter and a specified key.

Type Parameters:

K - the key type

Parameters:

key - associated key

Returns:

a key associated filter

forPartitions

default PartitionedFilter<T> forPartitions(PartitionSet partitions)

Return a partitioned filter for a specified partition set.

Parameters:

partitions - the set of partitions the filter should run against

Returns:

a partitioned filter

forKeys

default <K> InKeySetFilter<T> forKeys(Set<K> setKeys)

Return a filter that will only be evaluated within specified key set.

Type Parameters:

K - the key type

Parameters:

setKeys - the set of keys to limit the filter evaluation to

Returns:

a key set-limited filter

asLimitFilter

default LimitFilter<T> asLimitFilter(int cPageSize)

Return a limit filter based on this filter.

Parameters:

cPageSize - the number of entries per page

Returns:

a limit filter