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package org.apache.tapestry.contrib.tree.simple; |
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import java.io.Serializable; |
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import java.util.Iterator; |
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import javax.swing.tree.TreePath; |
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import org.apache.tapestry.contrib.tree.model.ITreeDataModel; |
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import org.apache.tapestry.contrib.tree.model.ITreeNode; |
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public class SimpleTreeDataModel implements ITreeDataModel, Serializable |
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{ |
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private static final long serialVersionUID = 9215832847660213349L; |
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protected ITreeNode m_objRootNode; |
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public SimpleTreeDataModel(ITreeNode objRootNode) |
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{ |
40 | 0 | super(); |
41 | 0 | m_objRootNode = objRootNode; |
42 | 0 | } |
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public Object getRoot() |
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{ |
49 | 0 | return m_objRootNode; |
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} |
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public int getChildCount(Object objParent) |
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{ |
57 | 0 | ITreeNode objParentNode = (ITreeNode) objParent; |
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59 | 0 | return objParentNode.getChildCount(); |
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} |
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public Iterator getChildren(Object objParent) |
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{ |
67 | 0 | ITreeNode objParentNode = (ITreeNode) objParent; |
68 | 0 | return objParentNode.getChildren().iterator(); |
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} |
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public Object getObject(Object objUniqueKey) |
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{ |
76 | 0 | if (objUniqueKey != null) |
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{ |
78 | 0 | TreePath objPath = (TreePath) objUniqueKey; |
79 | 0 | return objPath.getLastPathComponent(); |
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} |
81 | 0 | return null; |
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} |
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public Object getUniqueKey(Object objTarget, Object objParentUniqueKey) |
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{ |
90 | 0 | TreePath objPath = (TreePath) objParentUniqueKey; |
91 | 0 | Object objTargetUID = null; |
92 | 0 | if (objPath != null) |
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{ |
94 | 0 | objTargetUID = objPath.pathByAddingChild(objTarget); |
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} |
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else |
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{ |
98 | 0 | objTargetUID = new TreePath(objTarget); |
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} |
100 | 0 | return objTargetUID; |
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} |
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public boolean isAncestorOf(Object objTargetUniqueKey, |
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Object objParentUniqueKey) |
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{ |
110 | 0 | TreePath objParentPath = (TreePath) objParentUniqueKey; |
111 | 0 | TreePath objTargetPath = (TreePath) objTargetUniqueKey; |
112 | 0 | boolean bResult = objParentPath.isDescendant(objTargetPath); |
113 | 0 | return bResult; |
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} |
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public Object getParentUniqueKey(Object objChildUniqueKey) |
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{ |
121 | 0 | TreePath objChildPath = (TreePath) objChildUniqueKey; |
122 | 0 | TreePath objParentPath = objChildPath.getParentPath(); |
123 | 0 | if (objParentPath == null) return null; |
124 | 0 | return objParentPath.getLastPathComponent(); |
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} |
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} |