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The interface that defines a suitable data model for a TreeView component
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Method Summary | |
int |
getChildCount(java.lang.Object objParent)
Returns the number of children of parent node. |
java.util.Iterator |
getChildren(java.lang.Object objParent)
Get an iterator to the Collection of children belonging to the parent node object |
java.lang.Object |
getObject(java.lang.Object objUniqueKey)
Get the actual node object based on some identifier (for example an UUID) |
java.lang.Object |
getParentUniqueKey(java.lang.Object objChildUniqueKey)
Get the unique identifier of the parent of an object |
java.lang.Object |
getRoot()
Returns the root node of the tree |
java.lang.Object |
getUniqueKey(java.lang.Object objTarget,
java.lang.Object objParentUniqueKey)
Get the unique identifier (UUID) of the node object with a certain parent node |
boolean |
isAncestorOf(java.lang.Object objChildUniqueKey,
java.lang.Object objParentUniqueKey)
Check to see (on the basis of some node object identifier) whether the parent node is indeed the parent of the object |
Method Detail |
public java.lang.Object getRoot()
public int getChildCount(java.lang.Object objParent)
objParent
- is the parent object whose nr of children are soughtpublic java.util.Iterator getChildren(java.lang.Object objParent)
objParent
- is the parent object whose children are requestedpublic java.lang.Object getObject(java.lang.Object objUniqueKey)
objUniqueKey
- is the unique identifier of the node object being retrieved
public java.lang.Object getUniqueKey(java.lang.Object objTarget, java.lang.Object objParentUniqueKey)
objTarget
- is the Object whose identifier is requiredobjParentUniqueKey
- is the unique id of the parent of objTarget
public java.lang.Object getParentUniqueKey(java.lang.Object objChildUniqueKey)
objChildUniqueKey
- is the identifier of the Object for which the parent identifier is sought
public boolean isAncestorOf(java.lang.Object objChildUniqueKey, java.lang.Object objParentUniqueKey)
objChildUniqueKey
- is the identifier of the object whose parent is being checkedobjParentUniqueKey
- is the identifier of the parent which is to be checked against
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