Package org.apache.cayenne.exp.parser

## Interface Node

- All Known Implementing Classes:
    `AggregateConditionNode`, `ASTAbs`, `ASTAdd`, `ASTAggregateFunctionCall`, `ASTAnd`, `ASTAsterisk`, `ASTAvg`, `ASTBetween`, `ASTBitwiseAnd`, `ASTBitwiseLeftShift`, `ASTBitwiseNot`, `ASTBitwiseOr`, `ASTBitwiseRightShift`, `ASTBitwiseXor`, `ASTConcat`, `ASTCount`, `ASTCurrentDate`, `ASTCurrentTime`, `ASTCurrentTimestamp`, `ASTDbPath`, `ASTDistinct`, `ASTDivide`, `ASTEnum`, `ASTEqual`, `ASTExtract`, `ASTFalse`, `ASTFullObject`, `ASTFunctionCall`, `ASTGreater`, `ASTGreaterOrEqual`, `ASTIn`, `ASTLength`, `ASTLess`, `ASTLessOrEqual`, `ASTLike`, `ASTLikeIgnoreCase`, `ASTList`, `ASTLocate`, `ASTLower`, `ASTMax`, `ASTMin`, `ASTMod`, `ASTMultiply`, `ASTNamedParameter`, `ASTNegate`, `ASTNot`, `ASTNotBetween`, `ASTNotEqual`, `ASTNotIn`, `ASTNotLike`, `ASTNotLikeIgnoreCase`, `ASTObjPath`, `ASTOr`, `ASTPath`, `ASTScalar`, `ASTSqrt`, `ASTSubstring`, `ASTSubtract`, `ASTSum`, `ASTTrim`, `ASTTrue`, `ASTUpper`, `ConditionNode`, `EvaluatedBitwiseNode`, `EvaluatedMathNode`, `EvaluatedNode`, `PatternMatchNode`, `SimpleNode`

      public interface Node

  Provides basic machinery for constructing the parent and child relationships between nodes. All AST nodes must implement this interface.

  Generated by JJTree

  Since:
    1.1

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `jjtAddChild​(Node n, int i)` | This method tells the node to add its argument to the node's list of children.
    `void` | `jjtClose()` | 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()` | 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.

- - ### Method Detail

    - #### jjtOpen

          void jjtOpen()

      Called after the node has been made the current node. It indicates that child nodes can now be added to it.

    - #### jjtClose

          void jjtClose()

      Called after all the child nodes have been added.

    - #### jjtSetParent

          void jjtSetParent​(Node n)

      This pair of methods are used to inform the node of its parent.

    - #### jjtGetParent

          Node jjtGetParent()

    - #### jjtAddChild

          void jjtAddChild​(Node n,
                           int i)

      This method tells the node to add its argument to the node's list of children.

    - #### jjtGetChild

          Node jjtGetChild​(int i)

      This method returns a child node. The children are numbered from zero, left to right.

    - #### jjtGetNumChildren

          int jjtGetNumChildren()

      Return the number of children the node has.