org.zkoss.util

Class FastReadArray<T>

java.lang.Object

org.zkoss.util.FastReadArray<T>

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class FastReadArray<T>
extends java.lang.Object
implements java.io.Serializable, java.lang.Cloneable

An array of objects that are fast to read but a bit slower to add and remove.

It is thread-safe.

Typical use:

Object[] ary = fra.toArray();
for (int j = 0; j < ary.length; ++j)
  whatever;

Since:

3.0.6

Author:

tomyeh

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FastReadArray(java.lang.Class<?> klass) Constructs an array of the specified class.

Method Summary

Methods

Modifier and Type	Method and Description
void	add(T val) Adds an object.
void	clear() Removes all of the elements for this array.
java.lang.Object	clone()
boolean	equals(java.lang.Object o)
int	hashCode()
boolean	isEmpty() Returns if it is empty.
boolean	remove(T val) Removes an object.
boolean	removeBy(java.lang.Comparable val, boolean atMostOne) Removes the object(s) that matches the specified condition.
int	size() Returns the size.
T[]	toArray() Returns the array (never null).
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

FastReadArray

public FastReadArray(java.lang.Class<?> klass)

Constructs an array of the specified class.

Method Detail

toArray

public T[] toArray()

Returns the array (never null). To read, you shall store the return value in a local variable and then iterate thru it.

Note: the return array is readonly. Don't modify the value of any element.

isEmpty

public boolean isEmpty()

Returns if it is empty.

size

public int size()

Returns the size.

clear

public void clear()

Removes all of the elements for this array.

Since:

6.0.0

add

public void add(T val)

Adds an object.

remove

public boolean remove(T val)

Removes an object.

Returns:

whether the object is removed successfully (i.e., found).

removeBy

public boolean removeBy(java.lang.Comparable val,
               boolean atMostOne)

Removes the object(s) that matches the specified condition. By match we mean Comparable.compareTo(T) returns 0. In other words, this method invokes val.compareTo() against each element in this array.

Parameters:

atMostOne - whether to remove the first matched object only. If true, only the first matched object, if any, is removed. If false, all matched object are removed.

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object