org.opencms.util
Class CmsConstantMap<K,V>

java.lang.Object
  org.opencms.util.CmsConstantMap<K,V>

Type Parameters:

K - the type of keys maintained by this map

V - the type of mapped values

All Implemented Interfaces:

java.util.Map<K,V>

public class CmsConstantMap<K,V>
extends java.lang.Object
implements java.util.Map<K,V>

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

Nested Class Summary

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

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

Field Summary

static java.util.Map<java.lang.String,java.lang.Boolean>	CONSTANT_BOOLEAN_FALSE_MAP Constant Map that always returns Boolean.FALSE.
static java.util.Map<java.lang.String,java.lang.Boolean>	CONSTANT_BOOLEAN_TRUE_MAP Constant Map that always returns Boolean.TRUE.
static java.util.Map<java.lang.String,java.util.List<CmsJspContentAccessValueWrapper>>	CONSTANT_EMPTY_LIST_MAP Constant Map that always returns an empty list.
static java.util.Map<java.lang.String,java.lang.String>	CONSTANT_EMPTY_STRING_MAP Constant Map that always returns an empty list.

Constructor Summary

CmsConstantMap(V 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<java.util.Map.Entry<K,V>>	entrySet()
boolean	equals(java.lang.Object obj)
V	get(java.lang.Object key)
int	hashCode()
boolean	isEmpty()
java.util.Set<K>	keySet()
V	put(java.lang.Object arg0, java.lang.Object arg1)
void	putAll(java.util.Map<? extends K,? extends V> arg0)
V	remove(java.lang.Object key)
int	size()
java.util.Collection<V>	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<java.lang.String,java.lang.Boolean> CONSTANT_BOOLEAN_FALSE_MAP

Constant Map that always returns Boolean.FALSE.

CONSTANT_BOOLEAN_TRUE_MAP

public static final java.util.Map<java.lang.String,java.lang.Boolean> CONSTANT_BOOLEAN_TRUE_MAP

Constant Map that always returns Boolean.TRUE.

CONSTANT_EMPTY_LIST_MAP

public static final java.util.Map<java.lang.String,java.util.List<CmsJspContentAccessValueWrapper>> CONSTANT_EMPTY_LIST_MAP

Constant Map that always returns an empty list.

CONSTANT_EMPTY_STRING_MAP

public static final java.util.Map<java.lang.String,java.lang.String> CONSTANT_EMPTY_STRING_MAP

Constant Map that always returns an empty list.

Constructor Detail

CmsConstantMap

public CmsConstantMap(V 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<K,V>

See Also:

Map.clear()

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map<K,V>

See Also:

Map.containsKey(java.lang.Object)

containsValue

public boolean containsValue(java.lang.Object value)

Specified by:

containsValue in interface java.util.Map<K,V>

See Also:

Map.containsValue(java.lang.Object)

entrySet

public java.util.Set<java.util.Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface java.util.Map<K,V>

See Also:

Map.entrySet()

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface java.util.Map<K,V>

Overrides:

equals in class java.lang.Object

See Also:

Object.equals(java.lang.Object)

get

public V get(java.lang.Object key)

Specified by:

get in interface java.util.Map<K,V>

See Also:

Map.get(java.lang.Object)

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map<K,V>

Overrides:

hashCode in class java.lang.Object

See Also:

Object.hashCode()

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map<K,V>

See Also:

Map.isEmpty()

keySet

public java.util.Set<K> keySet()

Specified by:

keySet in interface java.util.Map<K,V>

See Also:

Map.keySet()

put

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

Specified by:

put in interface java.util.Map<K,V>

See Also:

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

putAll

public void putAll(java.util.Map<? extends K,? extends V> arg0)

Specified by:

putAll in interface java.util.Map<K,V>

See Also:

Map.putAll(java.util.Map)

remove

public V remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map<K,V>

See Also:

Map.remove(java.lang.Object)

size

public int size()

Specified by:

size in interface java.util.Map<K,V>

See Also:

Map.size()

values

public java.util.Collection<V> values()

Specified by:

values in interface java.util.Map<K,V>

See Also:

Map.values()