htsjdk.samtools.util

Class PeekableIterator<Object>

java.lang.Object

htsjdk.samtools.util.PeekableIterator<Object>

All Implemented Interfaces:

CloseableIterator<Object>, java.io.Closeable, java.lang.AutoCloseable, java.util.Iterator<Object>

Direct Known Subclasses:

SamPairUtil.SetMateInfoIterator

public class PeekableIterator<Object>
extends java.lang.Object
implements CloseableIterator<Object>

Generic Closable Iterator that allows you to peek at the next value before calling next

Constructor Summary

Constructors

Constructor and Description
PeekableIterator(java.util.Iterator<Object> iterator) Constructs a new iterator that wraps the supplied iterator.

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Closes the underlying iterator.
boolean	hasNext() True if there are more items, in which case both next() and peek() will return a value.
Object	next() Returns the next object and advances the iterator.
Object	peek() Returns the next object but does not advance the iterator.
void	remove() Unsupported Operation.

Methods inherited from class java.lang.Object

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

Constructor Detail

PeekableIterator

public PeekableIterator(java.util.Iterator<Object> iterator)

Constructs a new iterator that wraps the supplied iterator.

Method Detail

close

public void close()

Closes the underlying iterator.

Specified by:

close in interface CloseableIterator<Object>

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

hasNext

public boolean hasNext()

True if there are more items, in which case both next() and peek() will return a value.

Specified by:

hasNext in interface java.util.Iterator<Object>

next

public Object next()

Returns the next object and advances the iterator.

Specified by:

next in interface java.util.Iterator<Object>

peek

public Object peek()

Returns the next object but does not advance the iterator. Subsequent calls to peek() and next() will return the same object.

remove

public void remove()

Unsupported Operation.

Specified by:

remove in interface java.util.Iterator<Object>