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## com.singularsys.jep.parser
Class SimpleNode

    java.lang.Object
      com.singularsys.jep.parser.SimpleNode

All Implemented Interfaces:
  Node

Direct Known Subclasses:
  ASTConstant, ASTFunNode, ASTStart, ASTVarNode

    public abstract class SimpleNode

extends java.lang.Object
implements Node

Nested Class Summary

Nested classes/interfaces inherited from interface com.singularsys.jep.parser.Node
`Node.HookKey`

Field Summary
`protected Node[]` | `children`
`protected int` | `id`
`protected Node.HookKey[]` | `keys`
`protected Node` | `parent`
`protected Parser` | `parser`
`protected java.lang.Object[]` | `vals`

Constructor Summary
`SimpleNode(int i)`
`SimpleNode(Parser p, int i)`

Method Summary
`java.util.Iterator<Node>` | `childIterator()` Returns an Iterator which iterates over the children of the Node.
`java.lang.Iterable<Node>` | `children()` Returns an Iterable object which can be used in a for/in loop.
`java.lang.Object` | `childrenAccept(ParserVisitor visitor, java.lang.Object data)` Accept the visitor.
`void` | `dump(java.lang.String prefix)`
`java.lang.Object` | `getHook(Node.HookKey key)` Get the object associated with the key
`int` | `getId()` Returns the id of the node (for simpler identification).
`java.util.Collection<Node.HookKey>` | `hookKeys()` Get all the keys defined for this node.
`java.lang.Object` | `jjtAccept(ParserVisitor visitor, java.lang.Object data)` Accept the visitor.
`void` | `jjtAddChild(Node n, int i)` This method tells the node to add its argument to the node's list of children.
`void` | `jjtClose()` This method is called after all the child nodes have been added.
`Node` | `jjtGetChild(int i)` This method returns a child node.
`int` | `jjtGetNumChildren()` Return the number of children the node has.
`Node` | `jjtGetParent()`
`void` | `jjtOpen()` This method is called after the node has been made the current node.
`void` | `jjtSetParent(Node n)` This pair of methods are used to inform the node of its parent.
`java.lang.Object` | `removeHook(Node.HookKey key)` Remove the key
`java.lang.Object` | `setHook(Node.HookKey key, java.lang.Object hook)` Set the data associated with a given key
`java.lang.String` | `toString(java.lang.String prefix)`

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

Methods inherited from interface com.singularsys.jep.parser.Node
`getName, getOperator, getPFMC, getValue, getVar`

Field Detail

### parent

    protected Node parent

### children

    protected Node[] children

### id

    protected int id

### parser

    protected Parser parser

### keys

    protected Node.HookKey[] keys

### vals

    protected java.lang.Object[] vals

Constructor Detail

### SimpleNode

    public SimpleNode(int i)

### SimpleNode

    public SimpleNode(Parser p,
                      int i)

Method Detail

### jjtOpen

    public void jjtOpen()

  Description copied from interface: `Node`
  This method is called after the node has been made the current node. It indicates that child nodes can now be added to it.

  Specified by:
    `jjtOpen` in interface `Node`

### jjtClose

    public void jjtClose()

  Description copied from interface: `Node`
  This method is called after all the child nodes have been added.

  Specified by:
    `jjtClose` in interface `Node`

### jjtSetParent

    public void jjtSetParent(Node n)

  Description copied from interface: `Node`
  This pair of methods are used to inform the node of its parent.

  Specified by:
    `jjtSetParent` in interface `Node`

### jjtGetParent

    public Node jjtGetParent()

  Specified by:
    `jjtGetParent` in interface `Node`

### jjtAddChild

    public void jjtAddChild(Node n,
                            int i)

  Description copied from interface: `Node`
  This method tells the node to add its argument to the node's list of children.

  Specified by:
    `jjtAddChild` in interface `Node`

### jjtGetChild

    public Node jjtGetChild(int i)

  Description copied from interface: `Node`
  This method returns a child node. The children are numbered from zero, left to right.

  Specified by:
    `jjtGetChild` in interface `Node`

### jjtGetNumChildren

    public int jjtGetNumChildren()

  Description copied from interface: `Node`
  Return the number of children the node has.

  Specified by:
    `jjtGetNumChildren` in interface `Node`

### jjtAccept

    public java.lang.Object jjtAccept(ParserVisitor visitor,
                                      java.lang.Object data)
                               throws JepException

  Accept the visitor.

  Specified by:
    `jjtAccept` in interface `Node`
  Throws:
    `ParseException`
    `JepException`

### childrenAccept

    public java.lang.Object childrenAccept(ParserVisitor visitor,
                                           java.lang.Object data)
                                    throws JepException

  Accept the visitor.

  Throws:
    `JepException`

### toString

    public java.lang.String toString(java.lang.String prefix)

### dump

    public void dump(java.lang.String prefix)

### getId

    public int getId()

  Returns the id of the node (for simpler identification).

  Specified by:
    `getId` in interface `Node`

### getHook

    public java.lang.Object getHook(Node.HookKey key)

  Description copied from interface: `Node`
  Get the object associated with the key

  Specified by:
    `getHook` in interface `Node`
  Returns:
    the object associated with the key

### setHook

    public java.lang.Object setHook(Node.HookKey key,
                                    java.lang.Object hook)

  Description copied from interface: `Node`
  Set the data associated with a given key

  Specified by:
    `setHook` in interface `Node`
  Parameters:
    `key` - defining the type of data
    `hook` - actual object
  Returns:
    previous object associated with the key

### hookKeys

    public java.util.Collection<Node.HookKey> hookKeys()

  Description copied from interface: `Node`
  Get all the keys defined for this node.

  Specified by:
    `hookKeys` in interface `Node`
  Returns:
    all the keys

### removeHook

    public java.lang.Object removeHook(Node.HookKey key)

  Description copied from interface: `Node`
  Remove the key

  Specified by:
    `removeHook` in interface `Node`
  Returns:
    the object which was associated with the key

### childIterator

    public java.util.Iterator<Node> childIterator()

  Returns an Iterator which iterates over the children of the Node. The remove method is unsupported.

  Specified by:
    `childIterator` in interface `Node`
  Returns:
    a new Iterator

### children

    public java.lang.Iterable<Node> children()

  Returns an Iterable object which can be used in a for/in loop.

       for(Node child:node.children()) {
        ...
       }

  Specified by:
    `children` in interface `Node`

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Copyright © 2008 Singular Systems http://www.singularsys.com/jep