org.apache.commons.digester.annotations.internal

Class RuleSetCache

java.lang.Object

org.apache.commons.digester.annotations.internal.RuleSetCache

All Implemented Interfaces:

java.io.Serializable

public final class RuleSetCache
extends java.lang.Object
implements java.io.Serializable

Simple in-memory LRU cache implementation.

Since:

2.1

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private int	cacheSize The fixed cache size.
private int	capacity The fixed cache capacity.
private java.util.Map<java.lang.Class<?>,FromAnnotationsRuleSet>	data The map that implements the LRU cache.
private float	loadFactor The fixed cache load facor.
private static long	serialVersionUID This class serialVersionUID.

Constructor Summary

Constructors

Constructor and Description
RuleSetCache()

Method Summary

Modifier and Type	Method and Description
private static void	checkKey(java.lang.Class<?> key) Verify that a key is not null.
boolean	containsKey(java.lang.Class<?> key) Returns true if this cache contains a mapping for the specified key.
FromAnnotationsRuleSet	get(java.lang.Class<?> key) Returns the value to which the specified key is cached, or null if this cache contains no mapping for the key.
void	put(java.lang.Class<?> key, FromAnnotationsRuleSet value) Associates the specified value with the specified key in this cache.

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

This class serialVersionUID.

See Also:

Constant Field Values

cacheSize

private final int cacheSize

The fixed cache size.

See Also:

Constant Field Values

loadFactor

private final float loadFactor

The fixed cache load facor.

See Also:

Constant Field Values

capacity

private final int capacity

The fixed cache capacity.

data

private final java.util.Map<java.lang.Class<?>,FromAnnotationsRuleSet> data

The map that implements the LRU cache.

Constructor Detail

RuleSetCache

public RuleSetCache()

Method Detail

containsKey

public boolean containsKey(java.lang.Class<?> key)

Returns true if this cache contains a mapping for the specified key.

Parameters:

key - key whose presence in this map is to be tested.

Returns:

true if this map contains a mapping for the specified key, false otherwise.

get

public FromAnnotationsRuleSet get(java.lang.Class<?> key)

Returns the value to which the specified key is cached, or null if this cache contains no mapping for the key. Key parameter must not be null.

Parameters:

key - the key has to be checked it is present, it must not be null.

Returns:

the value to which the specified key is cached, null if this cache contains no mapping for the key.

put

public void put(java.lang.Class<?> key,
                FromAnnotationsRuleSet value)

Associates the specified value with the specified key in this cache. Key parameter must not be null.

Parameters:

key - key with which the specified value is to be associated.

value - value to be associated with the specified key.

checkKey

private static void checkKey(java.lang.Class<?> key)

Verify that a key is not null.

Type Parameters:

T - the generic key type.

Parameters:

key - the key object.