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- All Known Subinterfaces:
- MutableTreeNode
 - All Known Implementing Classes:
- AbstractDocument.AbstractElement,- AbstractDocument.BranchElement,- AbstractDocument.LeafElement,- DefaultMutableTreeNode,- DefaultStyledDocument.SectionElement,- HTMLDocument.BlockElement,- HTMLDocument.RunElement,- JTree.DynamicUtilTreeNode
 
 public interface TreeNodeDefines the requirements for an object that can be used as a tree node in a JTree.Implementations of TreeNodethat overrideequalswill typically need to overridehashCodeas well. Refer toTreeModelfor more information. For further information and examples of using tree nodes, see How to Use Tree Nodes in The Java Tutorial.
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Method SummaryAll Methods Instance Methods Abstract Methods Modifier and Type Method Description Enumeration<? extends TreeNode>children()Returns the children of the receiver as anEnumeration.booleangetAllowsChildren()Returns true if the receiver allows children.TreeNodegetChildAt(int childIndex)Returns the childTreeNodeat indexchildIndex.intgetChildCount()Returns the number of childrenTreeNodes the receiver contains.intgetIndex(TreeNode node)Returns the index ofnodein the receivers children.TreeNodegetParent()Returns the parentTreeNodeof the receiver.booleanisLeaf()Returns true if the receiver is a leaf.
 
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Method Detail- 
getChildAtTreeNode getChildAt(int childIndex) Returns the childTreeNodeat indexchildIndex.- Parameters:
- childIndex- index of child
- Returns:
- the child node at given index
 
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getChildCountint getChildCount() Returns the number of childrenTreeNodes the receiver contains.- Returns:
- the number of children the receiver contains
 
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getParentTreeNode getParent() Returns the parentTreeNodeof the receiver.- Returns:
- the parent of the receiver
 
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getIndexint getIndex(TreeNode node) Returns the index ofnodein the receivers children. If the receiver does not containnode, -1 will be returned.- Parameters:
- node- node to be loked for
- Returns:
- index of specified node
 
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getAllowsChildrenboolean getAllowsChildren() Returns true if the receiver allows children.- Returns:
- whether the receiver allows children
 
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isLeafboolean isLeaf() Returns true if the receiver is a leaf.- Returns:
- whether the receiver is a leaf
 
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childrenEnumeration<? extends TreeNode> children() Returns the children of the receiver as anEnumeration.- Returns:
- the children of the receiver as an Enumeration
 
 
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