ognl

Class ASTAdd

java.lang.Object

ognl.SimpleNode

ognl.ExpressionNode

ognl.NumericExpression

ognl.ASTAdd

All Implemented Interfaces:

Serializable, JavaSource, Node, NodeType

public class ASTAdd
extends NumericExpression

Author:

Luke Blanshard (blanshlu@netscape.net), Drew Davidson (drew@ognl.org)

See Also:

Serialized Form

Field Summary

Fields inherited from class ognl.NumericExpression

_getterClass

Fields inherited from class ognl.SimpleNode

_children, _id, _parent, _parser

Constructor Summary

Constructors

Constructor and Description
ASTAdd(int id)
ASTAdd(OgnlParser p, int id)

Method Summary

Methods

Modifier and Type	Method and Description
String	getExpressionOperator(int index)
protected Object	getValueBody(OgnlContext context, Object source) Subclasses implement this method to do the actual work of extracting the appropriate value from the source object.
void	jjtClose() This method is called after all the child nodes have been added.
String	toGetSourceString(OgnlContext context, Object target) Expected to return a java source representation of itself such that it could be turned into a literal java expression to be compiled and executed for ExpressionAccessor.get(OgnlContext, Object) calls.

Methods inherited from class ognl.NumericExpression

coerceToNumeric, getGetterClass, getSetterClass

Methods inherited from class ognl.ExpressionNode

isConstant, isNodeConstant, isOperation, toSetSourceString, toString

Methods inherited from class ognl.SimpleNode

dump, evaluateGetValueBody, evaluateSetValueBody, flattenTree, getAccessor, getIndexInParent, getNextSibling, getValue, isChain, isEvalChain, isNodeSimpleProperty, isSequence, isSimpleMethod, isSimpleNavigationChain, isSimpleProperty, jjtAddChild, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, lastChild, setAccessor, setValue, setValueBody, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ASTAdd

public ASTAdd(int id)

ASTAdd

public ASTAdd(OgnlParser p,
      int id)

Method Detail

jjtClose

public void jjtClose()

Description copied from interface: Node

This method is called after all the child nodes have been added.

Specified by:

jjtClose in interface Node

Overrides:

jjtClose in class SimpleNode

getValueBody

protected Object getValueBody(OgnlContext context,
                  Object source)
                       throws OgnlException

Description copied from class: SimpleNode

Subclasses implement this method to do the actual work of extracting the appropriate value from the source object.

Specified by:

getValueBody in class SimpleNode

Parameters:

context - the OgnlContext within which to perform the operation.

source - the Object from which to get the value body.

Returns:

the value body from the source (as appropriate within the provided context).

Throws:

OgnlException - if the value body get fails.

getExpressionOperator

public String getExpressionOperator(int index)

Overrides:

getExpressionOperator in class ExpressionNode

toGetSourceString

public String toGetSourceString(OgnlContext context,
                       Object target)

Description copied from interface: JavaSource

Expected to return a java source representation of itself such that it could be turned into a literal java expression to be compiled and executed for ExpressionAccessor.get(OgnlContext, Object) calls.

Specified by:

toGetSourceString in interface JavaSource

Overrides:

toGetSourceString in class NumericExpression

Parameters:

context - the OgnlContext within which to perform the operation.

target - the Object from which to retrieve the get source string.

Returns:

Literal java string representation of an object get.