org.apache.cayenne.exp.parser
Class ASTEqual

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.ConditionNode
              extended by org.apache.cayenne.exp.parser.ASTEqual
All Implemented Interfaces:
Serializable, Node, ValueInjector, XMLSerializable

public class ASTEqual
extends ConditionNode
implements ValueInjector

"Equal To" expression.

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
 
Constructor Summary
ASTEqual()
           
ASTEqual(ASTPath path, Object value)
          Creates "Equal To" expression.
 
Method Summary
protected  Object evaluateNode(Object o)
          Evaluates itself with object, pushing result on the stack.
protected  String getEJBQLExpressionOperator(int index)
          Returns operator for ebjql statements, which can differ for Cayenne expression operator
protected  String getExpressionOperator(int index)
           
 int getType()
          Returns a type of expression.
 void injectValue(Object o)
           
 Expression shallowCopy()
          Creates a copy of this expression node, without copying children.
 
Methods inherited from class org.apache.cayenne.exp.parser.ConditionNode
jjtSetParent
 
Methods inherited from class org.apache.cayenne.exp.parser.SimpleNode
connectChildren, encodeAsEJBQL, encodeAsEscapedString, encodeAsString, encodeChildrenAsEJBQL, encodeScalarAsString, evaluate, evaluateChild, expName, flattenTree, 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
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

ASTEqual

public ASTEqual()

ASTEqual

public ASTEqual(ASTPath path,
                Object value)
Creates "Equal To" expression.

Method Detail

evaluateNode

protected Object evaluateNode(Object o)
                       throws Exception
Description copied from class: SimpleNode
Evaluates itself with object, pushing result on the stack.

Specified by:
evaluateNode in class SimpleNode
Throws:
Exception

shallowCopy

public Expression shallowCopy()
Creates a copy of this expression node, without copying children.

Specified by:
shallowCopy in class Expression

getExpressionOperator

protected String getExpressionOperator(int index)
Specified by:
getExpressionOperator in class SimpleNode

getEJBQLExpressionOperator

protected String getEJBQLExpressionOperator(int index)
Description copied from class: SimpleNode
Returns operator for ebjql statements, which can differ for Cayenne expression operator

Overrides:
getEJBQLExpressionOperator in class SimpleNode

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:
getType in class Expression

injectValue

public void injectValue(Object o)
Specified by:
injectValue in interface ValueInjector


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