AbstractNode (Xtext Runtime Bundle 2.9.2 API)

java.lang.Object
- org.eclipse.xtext.nodemodel.impl.AbstractNode

All Implemented Interfaces:

Iterable<INode>, BidiIterable<INode>, BidiTreeIterable<INode>, INode

Direct Known Subclasses:

CompositeNode, LeafNode
```
public abstract class AbstractNode
extends Object
implements INode, BidiTreeIterable<INode>
```
Author:

Sebastian Zarnekow - Initial contribution and API, Mark Christiaens - Serialization support

Constructor Summary

Constructors
Constructor and Description

AbstractNode()

Constructors
Constructor and Description
`AbstractNode()`

Method Summary

Methods
Modifier and Type	Method and Description
`protected Object`	`basicGetGrammarElement()`
`protected int`	`basicGetLineOfOffset(INode rootNode, int offset)`
`protected AbstractNode`	`basicGetNextSibling()`
`protected CompositeNode`	`basicGetParent()`
`protected AbstractNode`	`basicGetPreviousSibling()`
`protected org.eclipse.emf.ecore.EObject`	`basicGetSemanticElement()`
`protected boolean`	`basicHasNextSibling()`
`protected boolean`	`basicHasPreviousSibling()`
`protected boolean`	`basicHasSiblings()`
`BidiTreeIterator<AbstractNode>`	`basicIterator()`
`protected void`	`basicSetGrammarElement(Object grammarElementOrArray)`
`protected void`	`basicSetNextSibling(AbstractNode next)`
`protected void`	`basicSetParent(CompositeNode parent)`
`protected void`	`basicSetPreviousSibling(AbstractNode prev)`
`BidiTreeIterable<INode>`	`getAsTreeIterable()` Returns a tree iterable that uses this node as its origin and root instance.
`int`	`getEndLine()` Returns the line number relative to the complete input where the node ends (one based, excluding hidden tokens).
`int`	`getEndOffset()` Returns the end offset (exclusive) of this node excluding hidden tokens.
`org.eclipse.emf.ecore.EObject`	`getGrammarElement()` Returns the grammar element that created this node.
`Iterable<ILeafNode>`	`getLeafNodes()` Returns an iterable for all contained leaf nodes.
`int`	`getLength()` Returns the length of this node excluding hidden tokens.
`INode`	`getNextSibling()` Returns the next sibling or `null`.
`int`	`getOffset()` Returns the offset of this node excluding hidden tokens.
`ICompositeNode`	`getParent()` Returns the parent of the node or `null` if and only if this is the root node.
`INode`	`getPreviousSibling()` Returns the previous sibling or `null`.
`ICompositeNode`	`getRootNode()` Returns the root node of this parse tree.
`org.eclipse.emf.ecore.EObject`	`getSemanticElement()` Returns the nearest semantic object that is associated with the subtree of this node.
`int`	`getStartLine()` Returns the line number relative to the complete input where the node begins (one based, excluding hidden tokens).
`SyntaxErrorMessage`	`getSyntaxErrorMessage()` Returns the directly associated syntax error message or `null` if none.
`String`	`getText()` Returns the parsed text that is covered by this node (including hidden tokens).
`ITextRegion`	`getTextRegion()` Returns a `region` for this node excluding hidden tokens: an `offset` of this region is the same as an `offset` of this node; and a `length` of this region is the same as a `length` of this node.
`ITextRegionWithLineInformation`	`getTextRegionWithLineInformation()` Returns a `region with line information` for this node excluding hidden tokens: an `offset` of this region is the same as an `offset` of this node; a `length` of this region is the same as a `length` of this node; a `line number` of this region is the same as a `start line` of this node; an `end line number` of this region is the same as an `end line` of this node.
`protected ITextRegionWithLineInformation`	`getTextRegionWithLineInformation(int offset, int length)`
`int`	`getTotalEndLine()` Returns the line number relative to the complete input where the node ends (one based, including hidden tokens).
`int`	`getTotalEndOffset()` Returns the end offset (exclusive) of this node including hidden tokens.
`int`	`getTotalStartLine()` Returns the line number relative to the complete input where the node begins (one based, including hidden tokens).
`ITextRegion`	`getTotalTextRegion()` Returns a `region` for this node including hidden tokens: an `offset` of this region is the same as a `total offset` of this node; and a `length` of this region is the same as a `total length` of this node.
`ITextRegionWithLineInformation`	`getTotalTextRegionWithLineInformation()` Returns a `region with line information` for this node including hidden tokens: an `offset` of this region is the same as a `total offset` of this node; a `length` of this region is the same as a `total length` of this node; a `line number` of this region is the same as a `total start line` of this node; an `end line number` of this region is the same as a `total end line` of this node.
`boolean`	`hasDirectSemanticElement()` Returns `true` if this node as a directly associated semantic element.
`boolean`	`hasNextSibling()` Returns `true` if this node is not the last child of its parent.
`boolean`	`hasPreviousSibling()` Returns `true` if this node is not the first child of its parent.
`boolean`	`hasSiblings()` Returns `true` if this node has any siblings.
`BidiTreeIterator<INode>`	`iterator()` Returns a tree iterator that can be used forwards and backwards.
`BidiTreeIterable<INode>`	`reverse()` Returns a reverse version of this iterable that can be used forwards and backwards.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.eclipse.xtext.nodemodel.INode
getTotalLength, getTotalOffset

- Constructor Detail
  - AbstractNode
```
public AbstractNode()
```
- Method Detail
  - getTextRegion
```
public ITextRegion getTextRegion()
```
    Description copied from interface: INode
    Returns a region for this node excluding hidden tokens:
    - an offset of this region is the same as an offset of this node;
    - and a length of this region is the same as a length of this node.
    This method could be more efficient than calculating an offset and a length of this node separately.
    Specified by:
    
    getTextRegion in interface INode
    
    Returns:
    a region for this node excluding hidden tokens
    Since:
    
    2.5
  - getTotalTextRegion
```
public ITextRegion getTotalTextRegion()
```
    Description copied from interface: INode
    Returns a region for this node including hidden tokens:
    - an offset of this region is the same as a total offset of this node;
    - and a length of this region is the same as a total length of this node.
    This method could be more efficient than calculating a total offset and a total length of this node separately.
    Specified by:
    
    getTotalTextRegion in interface INode
    
    Returns:
    a region for this node including hidden tokens
    Since:
    
    2.5
  - getTextRegionWithLineInformation
```
public ITextRegionWithLineInformation getTextRegionWithLineInformation()
```
    Description copied from interface: INode
    Returns a region with line information for this node excluding hidden tokens:
    - an offset of this region is the same as an offset of this node;
    - a length of this region is the same as a length of this node;
    - a line number of this region is the same as a start line of this node;
    - an end line number of this region is the same as an end line of this node.
    A line number and an end line number of the returned region are one based.
    
    This method could be more efficient than calculating an offset, a length, a start line and an end line of this node separately.
    Specified by:
    
    getTextRegionWithLineInformation in interface INode
    
    Returns:
    a region with line information for this node excluding hidden tokens
    Since:
    
    2.5
  - getTotalTextRegionWithLineInformation
```
public ITextRegionWithLineInformation getTotalTextRegionWithLineInformation()
```
    Description copied from interface: INode
    Returns a region with line information for this node including hidden tokens:
    - an offset of this region is the same as a total offset of this node;
    - a length of this region is the same as a total length of this node;
    - a line number of this region is the same as a total start line of this node;
    - an end line number of this region is the same as a total end line of this node.
    A line number and an end line number of the returned region are one based.
    
    This method could be more efficient than calculating a total offset, a total length, a total start line and a total end line of this node separately.
    Specified by:
    
    getTotalTextRegionWithLineInformation in interface INode
    
    Returns:
    a region with line information for this node including hidden tokens
    Since:
    
    2.5
  - getTextRegionWithLineInformation
```
protected ITextRegionWithLineInformation getTextRegionWithLineInformation(int offset,
                                                              int length)
```
    Since:
    
    2.5
  - getParent
```
public ICompositeNode getParent()
```
    Description copied from interface: INode
    
    Returns the parent of the node or null if and only if this is the root node.
    
    Specified by:
    
    getParent in interface INode
    
    Returns:
    the parent of this node or null.
  - basicGetParent
```
protected CompositeNode basicGetParent()
```
  - basicSetParent
```
protected void basicSetParent(CompositeNode parent)
```
  - getAsTreeIterable
```
public BidiTreeIterable<INode> getAsTreeIterable()
```
    Description copied from interface: INode
    
    Returns a tree iterable that uses this node as its origin and root instance. Its iterator will not return any siblings of this root. However, the first element returned by BidiTreeIterator.previous() or BidiTreeIterator.next() will be this instance.
    
    Specified by:
    
    getAsTreeIterable in interface INode
    
    Returns:
    a tree iterable where this node represents the root instance.
  - iterator
```
public BidiTreeIterator<INode> iterator()
```
    Description copied from interface: BidiTreeIterable
    
    Returns a tree iterator that can be used forwards and backwards.
    
    Specified by:
    
    iterator in interface Iterable<INode>
    
    Specified by:
    
    iterator in interface BidiIterable<INode>
    
    Specified by:
    
    iterator in interface BidiTreeIterable<INode>
    
    Returns:
    an iterator. Never returns null.
  - reverse
```
public BidiTreeIterable<INode> reverse()
```
    Description copied from interface: BidiTreeIterable
    Returns a reverse version of this iterable that can be used forwards and backwards. In other words, an iterator provided by the reverse iterable will delegate its hasNext() and next() invocations to BidiIterator.hasPrevious() and BidiIterator.previous() respectively.
    
    This allows clients to iterate backwards by means of the enhanced for-loop:
```
 for(T t: iterable.reverse()) {
   // do something with t
 }
 
```
    Specified by:
    
    reverse in interface BidiIterable<INode>
    
    Specified by:
    
    reverse in interface BidiTreeIterable<INode>
    
    Returns:
    the reversed iterable. Never returns null.
  - getLeafNodes
```
public Iterable<ILeafNode> getLeafNodes()
```
    Description copied from interface: INode
    
    Returns an iterable for all contained leaf nodes. Never null.
    
    Specified by:
    
    getLeafNodes in interface INode
    
    Returns:
    an iterable for all contained leaf nodes. Never null.
  - basicIterator
```
public BidiTreeIterator<AbstractNode> basicIterator()
```
  - getText
```
public String getText()
```
    Description copied from interface: INode
    
    Returns the parsed text that is covered by this node (including hidden tokens). The result is never null but may be empty.
    
    Specified by:
    
    getText in interface INode
    
    Returns:
    the parsed text that is covered by this node (including hidden tokens). Never null.
  - getTotalStartLine
```
public int getTotalStartLine()
```
    Description copied from interface: INode
    
    Returns the line number relative to the complete input where the node begins (one based, including hidden tokens).
    
    Specified by:
    
    getTotalStartLine in interface INode
    
    Returns:
    the line number relative to the complete input where the node begins.
  - basicGetLineOfOffset
```
protected int basicGetLineOfOffset(INode rootNode,
                       int offset)
```
    Since:
    
    2.0
  - getStartLine
```
public int getStartLine()
```
    Description copied from interface: INode
    
    Returns the line number relative to the complete input where the node begins (one based, excluding hidden tokens).
    
    Specified by:
    
    getStartLine in interface INode
    
    Returns:
    the line number relative to the complete input where the node begins.
  - getEndLine
```
public int getEndLine()
```
    Description copied from interface: INode
    
    Returns the line number relative to the complete input where the node ends (one based, excluding hidden tokens).
    
    Specified by:
    
    getEndLine in interface INode
    
    Returns:
    the line number relative to the complete input where the node ends.
  - getTotalEndLine
```
public int getTotalEndLine()
```
    Description copied from interface: INode
    
    Returns the line number relative to the complete input where the node ends (one based, including hidden tokens).
    
    Specified by:
    
    getTotalEndLine in interface INode
    
    Returns:
    the line number relative to the complete input where the node ends.
  - getOffset
```
public int getOffset()
```
    Description copied from interface: INode
    
    Returns the offset of this node excluding hidden tokens. If this node is a hidden leaf node or a composite node that does only contain hidden leaf nodes, the total offset is returned.
    
    Specified by:
    
    getOffset in interface INode
    
    Returns:
    the offset of this node excluding hidden tokens.
  - getLength
```
public int getLength()
```
    Description copied from interface: INode
    
    Returns the length of this node excluding hidden tokens. If this node is a hidden leaf node, the total length is returned.
    
    Specified by:
    
    getLength in interface INode
    
    Returns:
    the length of this node excluding hidden tokens.
  - getTotalEndOffset
```
public int getTotalEndOffset()
```
    Description copied from interface: INode
    
    Returns the end offset (exclusive) of this node including hidden tokens. Yields the same result as offset + length but may be more efficient.
    
    Specified by:
    
    getTotalEndOffset in interface INode
    
    Returns:
    the end offset (exclusive) of this node including hidden tokens.
  - getEndOffset
```
public int getEndOffset()
```
    Description copied from interface: INode
    
    Returns the end offset (exclusive) of this node excluding hidden tokens. Yields the same result as offset + length but may be more efficient.
    
    Specified by:
    
    getEndOffset in interface INode
    
    Returns:
    the end offset (exclusive) of this node excluding hidden tokens.
    Since:
    
    2.5
  - getRootNode
```
public ICompositeNode getRootNode()
```
    Description copied from interface: INode
    
    Returns the root node of this parse tree. Will not return null in a consistent tree.
    
    Specified by:
    
    getRootNode in interface INode
    
    Returns:
    the root node of this parse tree. Will not return null in a consistent tree.
  - getSemanticElement
```
public org.eclipse.emf.ecore.EObject getSemanticElement()
```
    Description copied from interface: INode
    
    Returns the nearest semantic object that is associated with the subtree of this node. May return null whenever the parser refused to create any objects due to unrecoverable errors. Implementations will usually walk up the node tree to find the semantic object. As the node model structure does not reflect the containment structure of the semantic object graph, clients should usually use the utilities in NodeModelUtils to obtain the semantic instance.
    
    Specified by:
    
    getSemanticElement in interface INode
    
    Returns:
    the nearest semantic object that is associated with the subtree of this node. May return null.
    See Also:
    INode.hasDirectSemanticElement(), NodeModelUtils.findActualSemanticObjectFor(INode)
  - basicGetSemanticElement
```
protected org.eclipse.emf.ecore.EObject basicGetSemanticElement()
```
  - hasDirectSemanticElement
```
public boolean hasDirectSemanticElement()
```
    Description copied from interface: INode
    
    Returns true if this node as a directly associated semantic element.
    
    Specified by:
    
    hasDirectSemanticElement in interface INode
    
    Returns:
    true if this node as a directly associated semantic element.
    See Also:
    INode.getSemanticElement()
  - getGrammarElement
```
public org.eclipse.emf.ecore.EObject getGrammarElement()
```
    Description copied from interface: INode
    
    Returns the grammar element that created this node. May return null in case of unrecoverable syntax errors. This happens usually when a keyword occurred at an unexpected offset.
    
    Specified by:
    
    getGrammarElement in interface INode
    
    Returns:
    the grammar element that created this node. May return null.
  - basicGetGrammarElement
```
protected Object basicGetGrammarElement()
```
  - basicSetGrammarElement
```
protected void basicSetGrammarElement(Object grammarElementOrArray)
```
  - getSyntaxErrorMessage
```
public SyntaxErrorMessage getSyntaxErrorMessage()
```
    Description copied from interface: INode
    
    Returns the directly associated syntax error message or null if none.
    
    Specified by:
    
    getSyntaxErrorMessage in interface INode
    
    Returns:
    the directly associated syntax error message. May return null.
  - getPreviousSibling
```
public INode getPreviousSibling()
```
    Description copied from interface: INode
    
    Returns the previous sibling or null. The result has the same parent as this node if it is not null.
    
    Specified by:
    
    getPreviousSibling in interface INode
    
    Returns:
    the previous sibling or null.
    See Also:
    INode.hasPreviousSibling(), INode.hasSiblings()
  - basicGetPreviousSibling
```
protected AbstractNode basicGetPreviousSibling()
```
  - basicSetPreviousSibling
```
protected void basicSetPreviousSibling(AbstractNode prev)
```
  - getNextSibling
```
public INode getNextSibling()
```
    Description copied from interface: INode
    
    Returns the next sibling or null. The result has the same parent as this node if it is not null.
    
    Specified by:
    
    getNextSibling in interface INode
    
    Returns:
    the next sibling or null.
    See Also:
    INode.hasNextSibling(), INode.hasSiblings()
  - basicGetNextSibling
```
protected AbstractNode basicGetNextSibling()
```
  - basicSetNextSibling
```
protected void basicSetNextSibling(AbstractNode next)
```
  - hasPreviousSibling
```
public boolean hasPreviousSibling()
```
    Description copied from interface: INode
    
    Returns true if this node is not the first child of its parent.
    
    Specified by:
    
    hasPreviousSibling in interface INode
    
    Returns:
    true if this node has a previous sibling thus INode.getPreviousSibling() will not return null.
  - basicHasPreviousSibling
```
protected boolean basicHasPreviousSibling()
```
  - hasNextSibling
```
public boolean hasNextSibling()
```
    Description copied from interface: INode
    
    Returns true if this node is not the last child of its parent.
    
    Specified by:
    
    hasNextSibling in interface INode
    
    Returns:
    true if this node has a next sibling thus INode.getNextSibling() will not return null.
  - basicHasNextSibling
```
protected boolean basicHasNextSibling()
```
  - hasSiblings
```
public boolean hasSiblings()
```
    Description copied from interface: INode
    
    Returns true if this node has any siblings.
    
    Specified by:
    
    hasSiblings in interface INode
    
    Returns:
    true if this node has any siblings.
    See Also:
    INode.hasPreviousSibling(), INode.hasNextSibling()
  - basicHasSiblings
```
protected boolean basicHasSiblings()
```

Class AbstractNode

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface org.eclipse.xtext.nodemodel.INode

Constructor Detail

AbstractNode

Method Detail

getTextRegion

getTotalTextRegion

getTextRegionWithLineInformation

getTotalTextRegionWithLineInformation

getTextRegionWithLineInformation

getParent

basicGetParent

basicSetParent

getAsTreeIterable

iterator

reverse

getLeafNodes

basicIterator

getText

getTotalStartLine

basicGetLineOfOffset

getStartLine

getEndLine

getTotalEndLine

getOffset

getLength

getTotalEndOffset

getEndOffset

getRootNode

getSemanticElement

basicGetSemanticElement

hasDirectSemanticElement

getGrammarElement

basicGetGrammarElement

basicSetGrammarElement

getSyntaxErrorMessage

getPreviousSibling

basicGetPreviousSibling

basicSetPreviousSibling

getNextSibling

basicGetNextSibling

basicSetNextSibling

hasPreviousSibling

basicHasPreviousSibling

hasNextSibling

basicHasNextSibling

hasSiblings

basicHasSiblings