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package org.apache.tapestry.contrib.tree.simple; |
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import java.util.Collection; |
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import java.util.HashSet; |
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import java.util.Iterator; |
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import java.util.Set; |
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import org.apache.tapestry.contrib.tree.model.IMutableTreeNode; |
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import org.apache.tapestry.contrib.tree.model.ITreeNode; |
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public class TreeNode implements IMutableTreeNode |
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{ |
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private static final long serialVersionUID = 677919478017303186L; |
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protected Set m_setChildren; |
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protected IMutableTreeNode m_objParentNode; |
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public TreeNode() |
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{ |
41 | 0 | this(null); |
42 | 0 | } |
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public TreeNode(IMutableTreeNode parentNode) |
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{ |
46 | 0 | super(); |
47 | 0 | m_objParentNode = parentNode; |
48 | 0 | m_setChildren = new HashSet(); |
49 | 0 | } |
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public int getChildCount() |
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{ |
53 | 0 | return m_setChildren.size(); |
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} |
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public ITreeNode getParent() |
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{ |
58 | 0 | return m_objParentNode; |
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} |
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public boolean getAllowsChildren() |
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{ |
63 | 0 | return true; |
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} |
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public boolean isLeaf() |
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{ |
68 | 0 | return m_setChildren.size() == 0 ? true : false; |
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} |
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public Collection children() |
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{ |
73 | 0 | return m_setChildren; |
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} |
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public void insert(IMutableTreeNode child) |
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{ |
78 | 0 | child.setParent(this); |
79 | 0 | m_setChildren.add(child); |
80 | 0 | } |
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public void remove(IMutableTreeNode node) |
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{ |
84 | 0 | m_setChildren.remove(node); |
85 | 0 | } |
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public void removeFromParent() |
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{ |
89 | 0 | m_objParentNode.remove(this); |
90 | 0 | m_objParentNode = null; |
91 | 0 | } |
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public void setParent(IMutableTreeNode newParent) |
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{ |
95 | 0 | m_objParentNode = newParent; |
96 | 0 | } |
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public void insert(Collection colChildren) |
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{ |
100 | 0 | for(Iterator iter = colChildren.iterator(); iter.hasNext();) |
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{ |
102 | 0 | IMutableTreeNode element = (IMutableTreeNode) iter.next(); |
103 | 0 | element.setParent(this); |
104 | 0 | m_setChildren.add(element); |
105 | 0 | } |
106 | 0 | } |
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public boolean containsChild(ITreeNode node) |
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{ |
113 | 0 | return m_setChildren.contains(node); |
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} |
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public Collection getChildren() |
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{ |
121 | 0 | return m_setChildren; |
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} |
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} |