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Summary: Nested | Field | Method | Constr | Detail: Nested | Field | Method | Constr |
java.lang.Object
nu.xom.Node
nu.xom.ParentNode
public abstract class ParentNode
extends Node
Document
Element
Method Summary | |
void |
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Node |
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int |
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int | |
void |
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Node |
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Node |
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void |
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abstract void |
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Methods inherited from class nu.xom.Node | |
copy , detach , equals , getBaseURI , getChild , getChildCount , getDocument , getParent , getValue , hashCode , query , query , toXML |
public void appendChild(Node child)
Appends a node to the children of this node.
- Parameters:
child
- node to append to this node
public Node getChild(int position)
Returns the child of this node at the specified position. Indexes begin at 0 and count up to one less than the number of children in this node.
- Parameters:
position
- index of the node to return
- Returns:
- the node at the requested position
public int getChildCount()
Returns the number of child nodes this node contains. This is always greater than or equal to 0.
- Overrides:
- getChildCount in interface Node
- Returns:
- the number of children of this node
public int indexOf(Node child)
Returns the position of a node within the children of this node. This is a number between 0 and one less than the number of children of this node. It returns -1 ifchild
does not have this node as a parent. This method does a linear search through the node's children. On average, it executes in O(N) where N is the number of children of the node.
- Parameters:
child
- the node whose position is desired
- Returns:
- the position of the argument node among the children of this node
public void insertChild(Node child, int position)
Inserts a child node at the specified position. The child node previously at that position (if any) and all subsequent child nodes are moved up by one. That is, when inserting a node at 2, the old node at 2 is moved to 3, the old child at 3 is moved to 4, and so forth. Inserting at position 0 makes the child the first child of this node. Inserting at the positiongetChildCount()
makes the child the last child of the node. All the other methods that add a node to the tree ultimately invoke this method.
- Parameters:
child
- the node to insertposition
- where to insert the child
public Node removeChild(int position)
Removes the child of this node at the specified position. Indexes begin at 0 and count up to one less than the number of children in this node.
- Parameters:
position
- index of the node to remove
- Returns:
- the node which was removed
public Node removeChild(Node child)
Removes the specified child of this node.
- Parameters:
child
- child node to remove
- Returns:
- the node which was removed
public void replaceChild(Node oldChild, Node newChild)
Replaces an existing child with a new child node. IfoldChild
is not a child of this node, then aNoSuchChildException
is thrown.
- Parameters:
oldChild
- the node removed from the treenewChild
- the node inserted into the tree
public abstract void setBaseURI(String URI)
Sets the URI against which relative URIs in this node will be resolved. Generally, it's only necessary to set this property if it's different from a node's parent's base URI, as it may be in a document assembled from multiple entities or by XInclude. Relative URIs are not allowed here. Base URIs must be absolute. However, the base URI may be set to null or the empty string to indicate that the node has no explicit base URI. In this case, it inherits the base URI of its parent node, if any. URIs with fragment identifiers are also not allowed. The value passed to this method must be a pure URI, not a URI reference. You can also add anxml:base
attribute to an element in the same way you'd add any other namespaced attribute to an element. If an element's base URI conflicts with itsxml:base
attribute, then the value found in thexml:base
attribute is used. If the base URI is null or the empty string and there is noxml:base
attribute, then the base URI is determined by the nearest ancestor node which does have a base URI. Moving such a node from one location to another can change its base URI.
- Parameters:
URI
- the new base URI for this node