org.apache.cayenne.exp.parser
Class AggregateConditionNode

java.lang.Object
  org.apache.cayenne.exp.Expression
      org.apache.cayenne.exp.parser.SimpleNode
          org.apache.cayenne.exp.parser.AggregateConditionNode

All Implemented Interfaces:

java.io.Serializable, Node, XMLSerializable

Direct Known Subclasses:

ASTAnd, ASTNot, ASTOr

public abstract class AggregateConditionNode
extends SimpleNode

Superclass of aggregated conditional nodes such as NOT, AND, OR. Performs extra checks on parent and child expressions to validate conditions that are not addressed in the Cayenne expressions grammar.

Since:

1.1

Author:

Andrei Adamchik

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.cayenne.exp.parser.SimpleNode

children, id, parent

Fields inherited from class org.apache.cayenne.exp.Expression

ADD, ALL, AND, ANY, AVG, BETWEEN, COUNT, DB_PATH, DIVIDE, EQUAL_TO, EXISTS, GREATER_THAN, GREATER_THAN_EQUAL_TO, IN, LESS_THAN, LESS_THAN_EQUAL_TO, LIKE, LIKE_IGNORE_CASE, LIST, MAX, MIN, MULTIPLY, NEGATIVE, NOT, NOT_BETWEEN, NOT_EQUAL_TO, NOT_IN, NOT_LIKE, NOT_LIKE_IGNORE_CASE, OBJ_PATH, OR, POSITIVE, PRUNED_NODE, RAW_SQL, SOME, SUBQUERY, SUBTRACT, SUM, type

Method Summary

void	jjtAddChild(Node n, int i) This method tells the node to add its argument to the node's list of children.
void	jjtSetParent(Node n) This pair of methods are used to inform the node of its parent.
protected boolean	pruneNodeForPrunedChild(java.lang.Object prunedChild) Returns true if this node should be pruned from expression tree in the event a child is removed.
protected java.lang.Object	transformExpression(org.apache.commons.collections.Transformer transformer) A recursive method called from "transform" to do the actual transformation.

Methods inherited from class org.apache.cayenne.exp.parser.SimpleNode

encodeAsEscapedString, encodeAsString, encodeScalarAsString, evaluate, evaluateChild, evaluateNode, expName, flattenTree, getExpressionOperator, getOperand, getOperandCount, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, notExp, setOperand, unwrapChild, wrapChild

Methods inherited from class org.apache.cayenne.exp.Expression

andExp, deepCopy, encodeAsXML, equals, expWithParameters, expWithParameters, filter, filterObjects, fromString, getType, joinExp, match, orExp, setType, shallowCopy, toString, transform, traverse, traverse

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

pruneNodeForPrunedChild

protected boolean pruneNodeForPrunedChild(java.lang.Object prunedChild)

Description copied from class: Expression

Returns true if this node should be pruned from expression tree in the event a child is removed.

Overrides:

pruneNodeForPrunedChild in class SimpleNode

transformExpression

protected java.lang.Object transformExpression(org.apache.commons.collections.Transformer transformer)

Description copied from class: Expression

A recursive method called from "transform" to do the actual transformation.

Overrides:

transformExpression in class Expression

Returns:

null, Expression.PRUNED_NODE or transformed expression.

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

Overrides:

jjtSetParent in class SimpleNode

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

Overrides:

jjtAddChild in class SimpleNode