org.opencms.util
Class CmsConstantMap

java.lang.Object
  org.opencms.util.CmsConstantMap

All Implemented Interfaces:

java.util.Map

public class CmsConstantMap
extends java.lang.Object
implements java.util.Map

Returns the constant Object the map was initialized with for all get(Object) calls, regardless of what the actual key is.

Since:

7.0.2

Version:

$Revision: 1.5 $

Author:

Alexander Kandzior

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Field Summary

static java.util.Map	CONSTANT_BOOLEAN_FALSE_MAP Constant Map that always returns Boolean.FALSE.
static java.util.Map	CONSTANT_BOOLEAN_TRUE_MAP Constant Map that always returns Boolean.TRUE.
static java.util.Map	CONSTANT_EMPTY_LIST_MAP Constant Map that always returns an empty list.

Constructor Summary

CmsConstantMap(java.lang.Object constant)
Creates a new constant Map.

Method Summary

void	clear()
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object value)
java.util.Set	entrySet()
boolean	equals(java.lang.Object obj)
java.lang.Object	get(java.lang.Object key)
int	hashCode()
boolean	isEmpty()
java.util.Set	keySet()
java.lang.Object	put(java.lang.Object arg0, java.lang.Object arg1)
void	putAll(java.util.Map arg0)
java.lang.Object	remove(java.lang.Object key)
int	size()
java.util.Collection	values()

Methods inherited from class java.lang.Object

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

Field Detail

CONSTANT_BOOLEAN_FALSE_MAP

public static final java.util.Map CONSTANT_BOOLEAN_FALSE_MAP

Constant Map that always returns Boolean.FALSE.

CONSTANT_BOOLEAN_TRUE_MAP

public static final java.util.Map CONSTANT_BOOLEAN_TRUE_MAP

Constant Map that always returns Boolean.TRUE.

CONSTANT_EMPTY_LIST_MAP

public static final java.util.Map CONSTANT_EMPTY_LIST_MAP

Constant Map that always returns an empty list.

Constructor Detail

CmsConstantMap

public CmsConstantMap(java.lang.Object constant)

Creates a new constant Map.

Parameters:

constant - the constant to return for all get(Object) calls.

Method Detail

clear

public void clear()

Specified by:

clear in interface java.util.Map

See Also:

Map.clear()

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map

See Also:

Map.containsKey(java.lang.Object)

containsValue

public boolean containsValue(java.lang.Object value)

Specified by:

containsValue in interface java.util.Map

See Also:

Map.containsValue(java.lang.Object)

entrySet

public java.util.Set entrySet()

Specified by:

entrySet in interface java.util.Map

See Also:

Map.entrySet()

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface java.util.Map

Overrides:

equals in class java.lang.Object

See Also:

Object.equals(java.lang.Object)

get

public java.lang.Object get(java.lang.Object key)

Specified by:

get in interface java.util.Map

See Also:

Map.get(java.lang.Object)

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map

Overrides:

hashCode in class java.lang.Object

See Also:

Object.hashCode()

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map

See Also:

Map.isEmpty()

keySet

public java.util.Set keySet()

Specified by:

keySet in interface java.util.Map

See Also:

Map.keySet()

put

public java.lang.Object put(java.lang.Object arg0,
                            java.lang.Object arg1)

Specified by:

put in interface java.util.Map

See Also:

Map.put(java.lang.Object, java.lang.Object)

putAll

public void putAll(java.util.Map arg0)

Specified by:

putAll in interface java.util.Map

See Also:

Map.putAll(java.util.Map)

remove

public java.lang.Object remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map

See Also:

Map.remove(java.lang.Object)

size

public int size()

Specified by:

size in interface java.util.Map

See Also:

Map.size()

values

public java.util.Collection values()

Specified by:

values in interface java.util.Map

See Also:

Map.values()