org.apache.cayenne.exp.parser
Class ASTFalse
java.lang.Object
   org.apache.cayenne.exp.Expression
org.apache.cayenne.exp.Expression
       org.apache.cayenne.exp.parser.SimpleNode
org.apache.cayenne.exp.parser.SimpleNode
           org.apache.cayenne.exp.parser.ConditionNode
org.apache.cayenne.exp.parser.ConditionNode
               org.apache.cayenne.exp.parser.ASTFalse
org.apache.cayenne.exp.parser.ASTFalse
- All Implemented Interfaces: 
- Serializable, Node, XMLSerializable
- public class ASTFalse 
- extends ConditionNode
Boolean false expression element
 
 Notice that there is one ASTTrue and one ASTFalse instead of a ASTBoolean with a
 Boolean value. The main reason for doing this is that a common ASTBoolean will have
 operand count of 1 and that will default to a prepared statmenet like " where ? and
 (...)", but we only need " where true and (...)".
- Since:
- 3.0
- See Also:
- ASTTrue, 
Serialized Form
 
 
| 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 | 
 
 
 
 
| Methods inherited from class org.apache.cayenne.exp.parser.SimpleNode | 
| connectChildren, encodeAsEscapedString, encodeChildrenAsEJBQL, encodeScalarAsString, evaluate, evaluateChild, expName, flattenTree, getEJBQLExpressionOperator, getOperand, getOperandCount, getPathAliases, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, notExp, pruneNodeForPrunedChild, setOperand, unwrapChild, wrapChild | 
 
| Methods inherited from class org.apache.cayenne.exp.Expression | 
| andExp, deepCopy, encodeAsXML, equals, expWithParameters, expWithParameters, filter, filterObjects, fromString, joinExp, match, orExp, setType, toEJBQL, toString, transform, transformExpression, traverse, traverse | 
 
 
ASTFalse
public ASTFalse()
evaluateNode
protected Object evaluateNode(Object o)
                       throws Exception
- Description copied from class: SimpleNode
- Evaluates itself with object, pushing result on the stack.
 
- 
- Specified by:
- evaluateNodein class- SimpleNode
 
- 
- Throws:
- Exception
 
getExpressionOperator
protected String getExpressionOperator(int index)
- 
- Specified by:
- getExpressionOperatorin class- SimpleNode
 
- 
 
shallowCopy
public Expression shallowCopy()
- Description copied from class: Expression
- Creates a copy of this expression node, without copying children.
 
- 
- Specified by:
- shallowCopyin class- Expression
 
- 
 
getType
public int getType()
- Description copied from class: Expression
- Returns a type of expression. Most common types are defined as public static fields
 of this interface.
 
- 
- Overrides:
- getTypein class- Expression
 
- 
 
encodeAsString
public void encodeAsString(PrintWriter pw)
- Description copied from class: Expression
- Stores a String representation of Expression using a provided PrintWriter.
 
- 
- Overrides:
- encodeAsStringin class- SimpleNode
 
- 
 
encodeAsEJBQL
public void encodeAsEJBQL(PrintWriter pw,
                          String rootId)
- Description copied from class: Expression
- Stores a String representation of Expression as EJBQL using a provided PrintWriter.
 DB path expressions produce non-standard EJBQL path expressions.
 
- 
- Overrides:
- encodeAsEJBQLin class- SimpleNode
 
- 
- Since:
- 3.0
 
Copyright © 2001-2011 Apache Cayenne. All Rights Reserved.