Package org.apache.ignite.internal.util.lang.gridfunc

Class TransformCollectionView<T1,T2>

java.lang.Object

java.util.AbstractCollection<E>

org.apache.ignite.internal.util.GridSerializableCollection<T1>

org.apache.ignite.internal.util.lang.gridfunc.TransformCollectionView<T1,T2>

Type Parameters:

T1 - Element type after transformation.

T2 - Element type.

All Implemented Interfaces:

Serializable, Iterable<T1>, Collection<T1>

public class TransformCollectionView<T1,T2>
extends GridSerializableCollection<T1>

Light-weight view on given collection with provided predicate.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
TransformCollectionView(Collection<? extends T2> col, IgniteClosure<? super T2,T1> clos, IgnitePredicate<? super T2>... preds)

Method Summary

Modifier and Type	Method	Description
boolean	isEmpty()
Iterator<T1>	iterator()
int	size()

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, contains, containsAll, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

equals, hashCode, parallelStream, removeIf, spliterator, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Constructor Details

TransformCollectionView

@SafeVarargs
public TransformCollectionView(Collection<? extends T2> col,
 IgniteClosure<? super T2,T1> clos,
 IgnitePredicate<? super T2>... preds)

Parameters:

col - Input collection that serves as a base for the view.

clos - Transformation closure.

preds - Optional predicated. If predicates are not provided - all elements will be in the view.

Method Details

iterator

public Iterator<T1> iterator()

Specified by:

iterator in interface Collection<T1>

Specified by:

iterator in interface Iterable<T1>

Specified by:

iterator in class AbstractCollection<T1>

size

public int size()

Specified by:

size in interface Collection<T1>

Specified by:

size in class AbstractCollection<T1>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<T1>

Overrides:

isEmpty in class AbstractCollection<T1>