Package 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:

Map<K,V>

public class CmsConstantMap<K,V>
extends Object
implements 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

Map.Entry<K extends Object,V extends Object>

Field Summary

Fields

Modifier and Type	Field	Description
static final Map<String,Boolean>	CONSTANT_BOOLEAN_FALSE_MAP	Constant Map that always returns Boolean.FALSE.
static final Map<String,Boolean>	CONSTANT_BOOLEAN_TRUE_MAP	Constant Map that always returns Boolean.TRUE.
static final Map<String,List<CmsJspContentAccessValueWrapper>>	CONSTANT_EMPTY_LIST_MAP	Constant Map that always returns an empty list.
static final Map<String,String>	CONSTANT_EMPTY_STRING_MAP	Constant Map that always returns an empty list.

Constructor Summary

Constructors

Constructor	Description
CmsConstantMap(V constant)	Creates a new constant Map.

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
boolean	equals(Object obj)
V	get(Object key)
int	hashCode()
boolean	isEmpty()
Set<K>	keySet()
V	put(Object arg0, Object arg1)
void	putAll(Map<? extends K,? extends V> arg0)
V	remove(Object key)
int	size()
Collection<V>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Field Details

CONSTANT_BOOLEAN_FALSE_MAP

public static final Map<String,Boolean> CONSTANT_BOOLEAN_FALSE_MAP

Constant Map that always returns Boolean.FALSE.

CONSTANT_BOOLEAN_TRUE_MAP

public static final Map<String,Boolean> CONSTANT_BOOLEAN_TRUE_MAP

Constant Map that always returns Boolean.TRUE.

CONSTANT_EMPTY_LIST_MAP

public static final Map<String,List<CmsJspContentAccessValueWrapper>> CONSTANT_EMPTY_LIST_MAP

Constant Map that always returns an empty list.

CONSTANT_EMPTY_STRING_MAP

public static final Map<String,String> CONSTANT_EMPTY_STRING_MAP

Constant Map that always returns an empty list.

Constructor Details

CmsConstantMap

public CmsConstantMap(V constant)

Creates a new constant Map.

Parameters:

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

Method Details

clear

public void clear()

Specified by:

clear in interface Map<K,V>

See Also:

• Map.clear()

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

See Also:

• Map.containsKey(java.lang.Object)

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

See Also:

• Map.containsValue(java.lang.Object)

entrySet

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

Specified by:

entrySet in interface Map<K,V>

See Also:

• Map.entrySet()

equals

public boolean equals(Object obj)

Specified by:

equals in interface Map<K,V>

Overrides:

equals in class Object

See Also:

• Object.equals(java.lang.Object)

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

See Also:

• Map.get(java.lang.Object)

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,V>

Overrides:

hashCode in class Object

See Also:

• Object.hashCode()

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

See Also:

• Map.isEmpty()

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

See Also:

• Map.keySet()

put

public V put(Object arg0,
 Object arg1)

Specified by:

put in interface Map<K,V>

See Also:

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

putAll

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

Specified by:

putAll in interface Map<K,V>

See Also:

• Map.putAll(java.util.Map)

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

See Also:

• Map.remove(java.lang.Object)

size

public int size()

Specified by:

size in interface Map<K,V>

See Also:

• Map.size()

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

See Also:

• Map.values()