Package org.apache.commons.ognl

Class ASTInstanceof

java.lang.Object

org.apache.commons.ognl.SimpleNode

org.apache.commons.ognl.ASTInstanceof

All Implemented Interfaces:

Serializable, JavaSource, Node, NodeType

public class ASTInstanceof
extends SimpleNode
implements NodeType

$Id$

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private String	targetType

Fields inherited from class org.apache.commons.ognl.SimpleNode

children, id, parent, parser

Constructor Summary

Constructors

Constructor	Description
ASTInstanceof(int id)
ASTInstanceof(OgnlParser p, int id)

Method Summary

Modifier and Type	Method	Description
<R, P> R	accept(NodeVisitor<? extends R,? super P> visitor, P data)	Supports the Visitor pattern.
Class	getGetterClass()	The type returned from the expression - if any.
Class	getSetterClass()	The type used to set the value - if any.
(package private) String	getTargetType()
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.
(package private) void	setTargetType(String targetType)
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.
String	toSetSourceString(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 org.apache.commons.ognl.SimpleNode

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

Methods inherited from class java.lang.Object

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

Field Details

targetType

private String targetType

Constructor Details

ASTInstanceof

public ASTInstanceof(int id)

ASTInstanceof

public ASTInstanceof(OgnlParser p,
 int id)

Method Details

setTargetType

void setTargetType(String targetType)

getTargetType

String getTargetType()

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

Throws:

OgnlException

getGetterClass

public Class getGetterClass()

Description copied from interface: NodeType

The type returned from the expression - if any.

Specified by:

getGetterClass in interface NodeType

Returns:

The type.

getSetterClass

public Class getSetterClass()

Description copied from interface: NodeType

The type used to set the value - if any.

Specified by:

getSetterClass in interface NodeType

Returns:

The type.

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 SimpleNode

Returns:

Literal java string representation of an object get.

toSetSourceString

public String toSetSourceString(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:

toSetSourceString in interface JavaSource

Overrides:

toSetSourceString in class SimpleNode

Returns:

Literal java string representation of an object get.

accept

public <R,
P> R accept(NodeVisitor<? extends R,? super P> visitor,
 P data)
                throws OgnlException

Description copied from interface: Node

Supports the Visitor pattern. The method which corresponds to the runtime type of this Node will be called.

Specified by:

accept in interface Node

Type Parameters:

R - The return type of the visitor.visit method.

P - The type of the second parameter type.

Parameters:

visitor - The visitor to accept.

data - The second parameter to pass through to visitor.visit

Returns:

the value returned by visitor.visit

Throws:

OgnlException