org.apache.cayenne.exp.parser
Class AggregateConditionNode

java.lang.Object
  extended by org.apache.cayenne.exp.Expression
      extended by org.apache.cayenne.exp.parser.SimpleNode
          extended by org.apache.cayenne.exp.parser.AggregateConditionNode
All Implemented Interfaces:
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
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, AND, BETWEEN, DB_PATH, DIVIDE, EQUAL_TO, FALSE, GREATER_THAN, GREATER_THAN_EQUAL_TO, IN, LESS_THAN, LESS_THAN_EQUAL_TO, LIKE, LIKE_IGNORE_CASE, LIST, MULTIPLY, NEGATIVE, NOT, NOT_BETWEEN, NOT_EQUAL_TO, NOT_IN, NOT_LIKE, NOT_LIKE_IGNORE_CASE, OBJ_PATH, OR, PRUNED_NODE, SUBTRACT, TRUE, 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(Object prunedChild)
          Returns true if this node should be pruned from expression tree in the event a child is removed.
protected  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
connectChildren, encodeAsEJBQL, encodeAsEscapedString, encodeAsString, encodeChildrenAsEJBQL, encodeScalarAsString, evaluate, evaluateChild, evaluateNode, expName, flattenTree, getEJBQLExpressionOperator, getExpressionOperator, getOperand, getOperandCount, getPathAliases, 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, toEJBQL, 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(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 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


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