org.perfcake.validation

Class FileQueue<T extends Serializable>

java.lang.Object

org.perfcake.validation.FileQueue<T>

All Implemented Interfaces:

Iterable<T>, Collection<T>, Queue<T>

public class FileQueue<T extends Serializable>
extends Object
implements Queue<T>

Stores items persistently to specified file.

Author:

Pavel Drozd, Martin Večeřa

Field Summary

Fields

Modifier and Type	Field and Description
static int	EMPTY_POINTER
static int	HEADER_SIZE
static int	LONG_SIZE

Constructor Summary

Constructors

Constructor and Description
FileQueue(File queueFile) Creates a new FileQueue that stores items in a specified file.
FileQueue(String filename) Creates a new FileQueue that stores items in a file on a specified path.

Method Summary

Modifier and Type	Method and Description
boolean	add(T item)
boolean	addAll(Collection<? extends T> c)
void	clear()
boolean	contains(Object o)
boolean	containsAll(Collection<?> c)
T	element()
boolean	isEmpty()
Iterator<T>	iterator()
boolean	offer(T e)
T	peek()
T	poll()
T	remove()
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
int	size()
Object[]	toArray()
<U> U[]	toArray(U[] a)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

equals, hashCode, parallelStream, removeIf, spliterator, stream

Methods inherited from interface java.lang.Iterable

forEach

Field Detail

EMPTY_POINTER

public static final int EMPTY_POINTER

See Also:

Constant Field Values

LONG_SIZE

public static final int LONG_SIZE

See Also:

Constant Field Values

HEADER_SIZE

public static final int HEADER_SIZE

See Also:

Constant Field Values

Constructor Detail

FileQueue

public FileQueue(String filename)
          throws PerfCakeException

Creates a new FileQueue that stores items in a file on a specified path.

Parameters:

filename - Path to the file to store queue items.

Throws:

PerfCakeException - When it was not possible to create or open the file.

FileQueue

public FileQueue(File queueFile)
          throws PerfCakeException

Creates a new FileQueue that stores items in a specified file.

Parameters:

queueFile - File to store queue items.

Throws:

PerfCakeException - When it was not possible to create or open the file.

Method Detail

add

public boolean add(T item)

Specified by:

add in interface Collection<T extends Serializable>

Specified by:

add in interface Queue<T extends Serializable>

size

public int size()

Specified by:

size in interface Collection<T extends Serializable>

peek

public T peek()

Specified by:

peek in interface Queue<T extends Serializable>

clear

public void clear()

Specified by:

clear in interface Collection<T extends Serializable>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<T extends Serializable>

addAll

public boolean addAll(Collection<? extends T> c)

Specified by:

addAll in interface Collection<T extends Serializable>

offer

public boolean offer(T e)

Specified by:

offer in interface Queue<T extends Serializable>

remove

public T remove()

Specified by:

remove in interface Queue<T extends Serializable>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<T extends Serializable>

poll

public T poll()

Specified by:

poll in interface Queue<T extends Serializable>

element

public T element()

Specified by:

element in interface Queue<T extends Serializable>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<T extends Serializable>

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T extends Serializable>

Specified by:

iterator in interface Collection<T extends Serializable>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<T extends Serializable>

toArray

public <U> U[] toArray(U[] a)

Specified by:

toArray in interface Collection<T extends Serializable>

containsAll

public boolean containsAll(Collection<?> c)

Specified by:

containsAll in interface Collection<T extends Serializable>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<T extends Serializable>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<T extends Serializable>