org.modeshape.jcr.query

Class BufferManager.CloseableDistinctBuffer<T>

java.lang.Object

org.modeshape.jcr.query.BufferManager.CloseableBuffer

org.modeshape.jcr.query.BufferManager.CloseableDistinctBuffer<T>

All Implemented Interfaces:

AutoCloseable, Iterable<T>, BufferManager.Buffer, BufferManager.DistinctBuffer<T>, BufferManager.Predicate<T>

Enclosing class:

BufferManager

protected final class BufferManager.CloseableDistinctBuffer<T>
extends BufferManager.CloseableBuffer
implements BufferManager.DistinctBuffer<T>

Field Summary

Fields inherited from class org.modeshape.jcr.query.BufferManager.CloseableBuffer

name, onHeap

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CloseableDistinctBuffer(String name, boolean onHeap, Set<T> buffer)

Method Summary

Modifier and Type	Method and Description
boolean	addIfAbsent(T value) Add the value to the buffer only if the buffer does not yet contain the value.
boolean	isEmpty() Determine if this buffer is empty.
Iterator<T>	iterator() Get an iterator over all of the records.
long	size() Get the size of the buffer.
String	toString()

Methods inherited from class org.modeshape.jcr.query.BufferManager.CloseableBuffer

close

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.modeshape.jcr.query.BufferManager.Buffer

close

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

CloseableDistinctBuffer

protected CloseableDistinctBuffer(String name,
                                  boolean onHeap,
                                  Set<T> buffer)

Method Detail

isEmpty

public boolean isEmpty()

Description copied from interface: BufferManager.Buffer

Determine if this buffer is empty. This may be more efficient than BufferManager.Buffer.size().

Specified by:

isEmpty in interface BufferManager.Buffer

Returns:

true if the buffer is empty, or false otherwise

size

public long size()

Description copied from interface: BufferManager.Buffer

Get the size of the buffer. This might be more expensive if the buffer is not created with the flag to keep the size.

Specified by:

size in interface BufferManager.Buffer

Returns:

the size of the buffer.

addIfAbsent

public boolean addIfAbsent(T value)

Description copied from interface: BufferManager.Predicate

Add the value to the buffer only if the buffer does not yet contain the value.

Specified by:

addIfAbsent in interface BufferManager.Predicate<T>

Parameters:

value - the value

Returns:

true if the buffer has not yet seen that value, or false otherwise

iterator

public Iterator<T> iterator()

Description copied from interface: BufferManager.DistinctBuffer

Get an iterator over all of the records.

Specified by:

iterator in interface Iterable<T>

Specified by:

iterator in interface BufferManager.DistinctBuffer<T>

Returns:

the iterator; never null

toString

public String toString()

Overrides:

toString in class Object