org.gridgain.grid.lang
Class GridPredicate3<E1,E2,E3>

java.lang.Object
  org.gridgain.grid.lang.GridMetadataAwareAdapter
      org.gridgain.grid.lang.GridLambdaAdapter
          org.gridgain.grid.lang.GridPredicate3<E1,E2,E3>

Type Parameters:

E1 - Type of the first free variable, i.e. the element the closure is called on.

E2 - Type of the second free variable, i.e. the element the closure is called on.

E3 - Type of the third free variable, i.e. the element the closure is called on.

All Implemented Interfaces:

Serializable, Cloneable, GridMetadataAware, GridPeerDeployAware, GridLambda

Direct Known Subclasses:

GridJexlPredicate3, GridPredicate3X, P3

public abstract class GridPredicate3<E1,E2,E3>
extends GridLambdaAdapter

Defines predicate construct. Predicate like closure is a first-class function that is defined with (or closed over) its free variables that are bound to the closure scope at execution.

This form of predicate is essentially a syntactic "sugar" providing shorter syntax for:

 ...
 GridPredicate<GridTuple3<E1, E2, E3>>
 ...
 

Type Alias

To provide for more terse code you can use a typedef P3 class or various factory methods in GridFunc class. Note, however, that since typedefs in Java rely on inheritance you should not use these type aliases in signatures.

Thread Safety

Note that this interface does not impose or assume any specific thread-safety by its implementations. Each implementation can elect what type of thread-safety it provides, if any.

Wiki & Forum:

Wiki
Forum

See Also:

P3, GridFunc, Serialized Form

Constructor Summary

GridPredicate3()

Method Summary

<A> GridClosure3<E1,E2,E3,A>	andThen(GridClosure<Boolean,A> c) Gets closure that applies given closure over the result of this predicate.
GridInClosure3<E1,E2,E3>	andThen(GridInClosure<Boolean> c) Gets closure that applies given closure over the result of this predicate.
GridPredicate3<E1,E2,E3>	andThen(GridPredicate<Boolean> c) Gets predicate that applies given predicate over the result of this predicate.
abstract boolean	apply(E1 e1, E2 e2, E3 e3) Predicate body.
GridPredicate2<E2,E3>	curry(E1 e1) Curries this predicate with given values.
GridPredicate<E3>	curry(E1 e1, E2 e2) Curries this predicate with given values.
GridAbsPredicate	curry(E1 e1, E2 e2, E3 e3) Curries this predicate with given values.

Methods inherited from class org.gridgain.grid.lang.GridLambdaAdapter

classLoader, deployClass, peerDeployLike, withMeta

Methods inherited from class org.gridgain.grid.lang.GridMetadataAwareAdapter

addMeta, addMetaIfAbsent, addMetaIfAbsent, allMeta, clone, copyMeta, copyMeta, hasMeta, hasMeta, meta, putMetaIfAbsent, putMetaIfAbsent, readExternalMeta, removeMeta, removeMeta, replaceMeta, writeExternalMeta

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.gridgain.grid.GridMetadataAware

addMeta, addMetaIfAbsent, addMetaIfAbsent, allMeta, copyMeta, copyMeta, hasMeta, hasMeta, meta, putMetaIfAbsent, putMetaIfAbsent, removeMeta, removeMeta, replaceMeta

Constructor Detail

GridPredicate3

public GridPredicate3()

Method Detail

apply

public abstract boolean apply(E1 e1,
                              E2 e2,
                              E3 e3)

Predicate body.

Parameters:

e1 - First bound free variable, i.e. the element the closure is called or closed on.

e2 - Second bound free variable, i.e. the element the closure is called or closed on.

e3 - Third bound free variable, i.e. the element the closure is called or closed on.

Returns:

Return value.

curry

public GridPredicate2<E2,E3> curry(E1 e1)

Curries this predicate with given values. When result predicate is called it will be executed with given values.

Parameters:

e1 - Value to curry with.

Returns:

Curried or partially applied predicate with given values.

curry

public GridPredicate<E3> curry(E1 e1,
                               E2 e2)

Curries this predicate with given values. When result predicate is called it will be executed with given values.

Parameters:

e1 - Value to curry with.

e2 - Value to curry with.

Returns:

Curried or partially applied predicate with given values.

curry

public GridAbsPredicate curry(E1 e1,
                              E2 e2,
                              E3 e3)

Curries this predicate with given values. When result predicate is called it will be executed with given values.

Parameters:

e1 - Value to curry with.

e2 - Value to curry with.

e3 - Value to curry with.

Returns:

Curried or partially applied predicate with given values.

andThen

public <A> GridClosure3<E1,E2,E3,A> andThen(GridClosure<Boolean,A> c)

Gets closure that applies given closure over the result of this predicate.

Type Parameters:

A - Return type of new closure.

Parameters:

c - Closure.

Returns:

New closure.

andThen

public GridInClosure3<E1,E2,E3> andThen(GridInClosure<Boolean> c)

Gets closure that applies given closure over the result of this predicate.

Parameters:

c - Closure.

Returns:

New closure.

andThen

public GridPredicate3<E1,E2,E3> andThen(GridPredicate<Boolean> c)

Gets predicate that applies given predicate over the result of this predicate.

Parameters:

c - Predicate.

Returns:

New predicate.