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## org.apache.struts2.util
Class AttributeMap

    java.lang.Object
      org.apache.struts2.util.AttributeMap

All Implemented Interfaces:
  java.util.Map

    public class AttributeMap

extends java.lang.Object
implements java.util.Map

A Map that holds 4 levels of scope.

The scopes are the ones known in the web world.:

- Page scope
- Request scope
- Session scope
- Application scope

A object is searched in the order above, starting from page and ending at application scope.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map
`java.util.Map.Entry<K,V>`

Field Summary
`protected static java.lang.String` | `UNSUPPORTED`

Constructor Summary
`AttributeMap(java.util.Map context)`

Method Summary
`void` | `clear()`
`boolean` | `containsKey(java.lang.Object key)`
`boolean` | `containsValue(java.lang.Object value)`
`java.util.Set` | `entrySet()`
`java.lang.Object` | `get(java.lang.Object key)`
`boolean` | `isEmpty()`
`java.util.Set` | `keySet()`
`java.lang.Object` | `put(java.lang.Object key, java.lang.Object value)`
`void` | `putAll(java.util.Map t)`
`java.lang.Object` | `remove(java.lang.Object key)`
`int` | `size()`
`java.util.Collection` | `values()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface java.util.Map
`equals, hashCode`

Field Detail

### UNSUPPORTED

    protected static final java.lang.String UNSUPPORTED

See Also:
  Constant Field Values

Constructor Detail

### AttributeMap

    public AttributeMap(java.util.Map context)

Method Detail

### isEmpty

    public boolean isEmpty()

  Specified by:
    `isEmpty` in interface `java.util.Map`

### clear

    public void clear()

  Specified by:
    `clear` in interface `java.util.Map`

### containsKey

    public boolean containsKey(java.lang.Object key)

  Specified by:
    `containsKey` in interface `java.util.Map`

### containsValue

    public boolean containsValue(java.lang.Object value)

  Specified by:
    `containsValue` in interface `java.util.Map`

### entrySet

    public java.util.Set entrySet()

  Specified by:
    `entrySet` in interface `java.util.Map`

### get

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

  Specified by:
    `get` in interface `java.util.Map`

### keySet

    public java.util.Set keySet()

  Specified by:
    `keySet` in interface `java.util.Map`

### put

    public java.lang.Object put(java.lang.Object key,
                                java.lang.Object value)

  Specified by:
    `put` in interface `java.util.Map`

### putAll

    public void putAll(java.util.Map t)

  Specified by:
    `putAll` in interface `java.util.Map`

### remove

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

  Specified by:
    `remove` in interface `java.util.Map`

### size

    public int size()

  Specified by:
    `size` in interface `java.util.Map`

### values

    public java.util.Collection values()

  Specified by:
    `values` in interface `java.util.Map`

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