| java.lang.Object
 org.apache.jorphan.collections.SearchByClass
| SearchByClass | | public class SearchByClass implements HashTreeTraverser(Code) | | Useful for finding all nodes in the tree that represent objects of a
particular type. For instance, if your tree contains all strings, and a few
StringBuffer objects, you can use the SearchByClass traverser to find all the
StringBuffer objects in your tree.
Usage is simple. Given a
HashTree object "tree", and a SearchByClass
object:
HashTree tree = new HashTree();
// ... tree gets filled with objects
SearchByClass searcher = new SearchByClass(StringBuffer.class);
tree.traverse(searcher);
Iterator iter = searcher.getSearchResults().iterator();
while (iter.hasNext()) {
StringBuffer foundNode = (StringBuffer) iter.next();
HashTree subTreeOfFoundNode = searcher.getSubTree(foundNode);
// .... do something with node and subTree...
}
See Also: HashTree
See Also: HashTreeTraverser
author:
Michael Stover (mstover1 at apache.org)
version:
$Revision: 493784 $ |
| Constructor Summary | |
| public | SearchByClass()
Creates an instance of SearchByClass. | | public | SearchByClass(Class searchClass)
Creates an instance of SearchByClass, and sets the Class to be searched
for. |
| SearchByClass | | public SearchByClass()(Code) | | Creates an instance of SearchByClass. However, without setting the Class
to search for, it will be a useless object.
|
| SearchByClass | | public SearchByClass(Class searchClass)(Code) | | Creates an instance of SearchByClass, and sets the Class to be searched
for.
Parameters:
searchClass - |
| getSearchResults | | public Collection getSearchResults()(Code) | | After traversing the HashTree, call this method to get a collection of
the nodes that were found.
Collection All found nodes of the requested type |
| getSubTree | | public HashTree getSubTree(Object root)(Code) | | Given a specific found node, this method will return the sub tree of that
node.
Parameters:
root - the node for which the sub tree is requested HashTree |
| processPath | | public void processPath()(Code) | | |
| subtractNode | | public void subtractNode()(Code) | | |
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