org.apache.tinkerpop.gremlin.process.traversal.traverser.util

Class IndexedTraverserSet<S,I>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<Traverser.Admin<S>>

org.apache.tinkerpop.gremlin.process.traversal.traverser.util.TraverserSet<S>

org.apache.tinkerpop.gremlin.process.traversal.traverser.util.IndexedTraverserSet<S,I>

All Implemented Interfaces:

Serializable, Iterable<Traverser.Admin<S>>, Collection<Traverser.Admin<S>>, Queue<Traverser.Admin<S>>, Set<Traverser.Admin<S>>

Direct Known Subclasses:

IndexedTraverserSet.VertexIndexedTraverserSet

public class IndexedTraverserSet<S,I>
extends TraverserSet<S>

A TraverserSet that has an index back to the object in the Traverser. Using this extension of TraverserSet can make it easier to find traversers within the set if the internal value is known. Without the index the entire TraverserSet needs to be iterated to find a particular value.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	IndexedTraverserSet.VertexIndexedTraverserSet An IndexedTraverserSet that indexes based on a Vertex traverser.

Constructor Summary

Constructors

Constructor and Description
IndexedTraverserSet(Function<S,I> indexingFunction)
IndexedTraverserSet(Function<S,I> indexingFunction, Traverser.Admin<S> traverser)

Method Summary

Modifier and Type	Method and Description
boolean	add(Traverser.Admin<S> traverser)
void	clear()
Collection<Traverser.Admin<S>>	get(I k) Gets a collection of Traverser objects that contain the specified value.
boolean	offer(Traverser.Admin<S> traverser)
Traverser.Admin<S>	remove()
boolean	remove(Object traverser)

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.traverser.util.TraverserSet

bulkSize, contains, element, get, isEmpty, iterator, peek, poll, shuffle, size, sort, spliterator, toString

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

addAll, containsAll, equals, hashCode, removeAll, retainAll, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

IndexedTraverserSet

public IndexedTraverserSet(Function<S,I> indexingFunction)

IndexedTraverserSet

public IndexedTraverserSet(Function<S,I> indexingFunction,
                           Traverser.Admin<S> traverser)

Method Detail

clear

public void clear()

Specified by:

clear in interface Collection<Traverser.Admin<S>>

Specified by:

clear in interface Set<Traverser.Admin<S>>

Overrides:

clear in class TraverserSet<S>

add

public boolean add(Traverser.Admin<S> traverser)

Specified by:

add in interface Collection<Traverser.Admin<S>>

Specified by:

add in interface Queue<Traverser.Admin<S>>

Specified by:

add in interface Set<Traverser.Admin<S>>

Overrides:

add in class TraverserSet<S>

get

public Collection<Traverser.Admin<S>> get(I k)

Gets a collection of Traverser objects that contain the specified value.

Parameters:

k - the key produced by the indexing function

Returns:

offer

public boolean offer(Traverser.Admin<S> traverser)

Specified by:

offer in interface Queue<Traverser.Admin<S>>

Overrides:

offer in class TraverserSet<S>

remove

public Traverser.Admin<S> remove()

Specified by:

remove in interface Queue<Traverser.Admin<S>>

Overrides:

remove in class TraverserSet<S>

remove

public boolean remove(Object traverser)

Specified by:

remove in interface Collection<Traverser.Admin<S>>

Specified by:

remove in interface Set<Traverser.Admin<S>>

Overrides:

remove in class TraverserSet<S>