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## javax.accessibility
Class AccessibleRelationSet

    java.lang.Object
      javax.accessibility.AccessibleRelationSet

public class AccessibleRelationSet
extends Object

Class AccessibleRelationSet determines a component's relation set. The relation set of a component is a set of AccessibleRelation objects that describe the component's relationships with other components.

See Also:
  `AccessibleRelation`

Field Summary
`protected Vector` | `relations` Each entry in the Vector represents an AccessibleRelation.

Constructor Summary
`AccessibleRelationSet()` Creates a new empty relation set.
`AccessibleRelationSet(AccessibleRelation[] relations)` Creates a new relation with the initial set of relations contained in the array of relations passed in.

Method Summary
`boolean` | `add(AccessibleRelation relation)` Adds a new relation to the current relation set.
`void` | `addAll(AccessibleRelation[] relations)` Adds all of the relations to the existing relation set.
`void` | `clear()` Removes all the relations from the current relation set.
`boolean` | `contains(String key)` Returns whether the relation set contains a relation that matches the specified key.
`AccessibleRelation` | `get(String key)` Returns the relation that matches the specified key.
`boolean` | `remove(AccessibleRelation relation)` Removes a relation from the current relation set.
`int` | `size()` Returns the number of relations in the relation set.
`AccessibleRelation[]` | `toArray()` Returns the current relation set as an array of AccessibleRelation
`String` | `toString()` Creates a localized String representing all the relations in the set using the default locale.

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

Field Detail

### relations

    protected Vector relations

  Each entry in the Vector represents an AccessibleRelation.

  See Also:
    `add(javax.accessibility.AccessibleRelation)`, `addAll(javax.accessibility.AccessibleRelation[])`, `remove(javax.accessibility.AccessibleRelation)`, `contains(java.lang.String)`, `get(java.lang.String)`, `size()`, `toArray()`, `clear()`

Constructor Detail

### AccessibleRelationSet

    public AccessibleRelationSet()

  Creates a new empty relation set.

### AccessibleRelationSet

    public AccessibleRelationSet(AccessibleRelation[] relations)

  Creates a new relation with the initial set of relations contained in the array of relations passed in. Duplicate entries are ignored.

Parameters:
  `relations` - an array of AccessibleRelation describing the relation set.

Method Detail

### add

    public boolean add(AccessibleRelation relation)

  Adds a new relation to the current relation set. If the relation is already in the relation set, the target(s) of the specified relation is merged with the target(s) of the existing relation. Otherwise, the new relation is added to the relation set.

  Parameters:
    `relation` - the relation to add to the relation set
  Returns:
    true if relation is added to the relation set; false if the relation set is unchanged

### addAll

    public void addAll(AccessibleRelation[] relations)

  Adds all of the relations to the existing relation set. Duplicate entries are ignored.

  Parameters:
    `relations` - AccessibleRelation array describing the relation set.

### remove

    public boolean remove(AccessibleRelation relation)

  Removes a relation from the current relation set. If the relation is not in the set, the relation set will be unchanged and the return value will be false. If the relation is in the relation set, it will be removed from the set and the return value will be true.

  Parameters:
    `relation` - the relation to remove from the relation set
  Returns:
    true if the relation is in the relation set; false if the relation set is unchanged

### clear

    public void clear()

  Removes all the relations from the current relation set.

### size

    public int size()

  Returns the number of relations in the relation set.

### contains

    public boolean contains(String key)

  Returns whether the relation set contains a relation that matches the specified key.

  Parameters:
    `key` - the AccessibleRelation key
  Returns:
    true if the relation is in the relation set; otherwise false

### get

    public AccessibleRelation get(String key)

  Returns the relation that matches the specified key.

  Parameters:
    `key` - the AccessibleRelation key
  Returns:
    the relation, if one exists, that matches the specified key. Otherwise, null is returned.

### toArray

    public AccessibleRelation[] toArray()

  Returns the current relation set as an array of AccessibleRelation

  Returns:
    AccessibleRelation array contacting the current relation.

### toString

    public String toString()

  Creates a localized String representing all the relations in the set using the default locale.

  Overrides:
    `toString` in class `Object`
  Returns:
    comma separated localized String
  See Also:
    `AccessibleBundle.toDisplayString(java.lang.String, java.util.Locale)`

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.