Package org.apache.commons.ognl
Class ASTVarRef
- java.lang.Object
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- org.apache.commons.ognl.SimpleNode
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- org.apache.commons.ognl.ASTVarRef
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- All Implemented Interfaces:
Serializable
,OrderedReturn
,JavaSource
,Node
,NodeType
- Direct Known Subclasses:
ASTRootVarRef
,ASTThisVarRef
public class ASTVarRef extends SimpleNode implements NodeType, OrderedReturn
$Id$- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description ASTVarRef(int id)
ASTVarRef(OgnlParser p, int id)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description <R,P>
Raccept(NodeVisitor<? extends R,? super P> visitor, P data)
Supports the Visitor pattern.String
getCoreExpression()
Get the core expression to execute first before any return foo logic is started.Class
getGetterClass()
The type returned from the expression - if any.String
getLastExpression()
Gets the last expression to be pre-pended with a return <expression> block.Class
getSetterClass()
The type used to set the value - if any.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.protected void
setValueBody(OgnlContext context, Object target, Object value)
Subclasses implement this method to do the actual work of setting the appropriate value in the target object.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 forExpressionAccessor.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 forExpressionAccessor.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, toString, toString
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Constructor Detail
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ASTVarRef
public ASTVarRef(int id)
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ASTVarRef
public ASTVarRef(OgnlParser p, int id)
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Method Detail
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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 classSimpleNode
- Throws:
OgnlException
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setValueBody
protected void setValueBody(OgnlContext context, Object target, Object value) throws OgnlException
Description copied from class:SimpleNode
Subclasses implement this method to do the actual work of setting the appropriate value in the target object. The default implementation throws anInappropriateExpressionException
, meaning that it cannot be a set expression.- Overrides:
setValueBody
in classSimpleNode
- Throws:
OgnlException
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getGetterClass
public Class getGetterClass()
Description copied from interface:NodeType
The type returned from the expression - if any.- Specified by:
getGetterClass
in interfaceNodeType
- Returns:
- The type.
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getSetterClass
public Class getSetterClass()
Description copied from interface:NodeType
The type used to set the value - if any.- Specified by:
getSetterClass
in interfaceNodeType
- Returns:
- The type.
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getCoreExpression
public String getCoreExpression()
Description copied from interface:OrderedReturn
Get the core expression to execute first before any return foo logic is started.- Specified by:
getCoreExpression
in interfaceOrderedReturn
- Returns:
- The core standalone expression that shouldn't be pre-pended with a return keyword.
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getLastExpression
public String getLastExpression()
Description copied from interface:OrderedReturn
Gets the last expression to be pre-pended with a return <expression> block.- Specified by:
getLastExpression
in interfaceOrderedReturn
- Returns:
- The expression representing the return portion of a statement;
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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 forExpressionAccessor.get(OgnlContext, Object)
calls.- Specified by:
toGetSourceString
in interfaceJavaSource
- Overrides:
toGetSourceString
in classSimpleNode
- Returns:
- Literal java string representation of an object get.
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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 forExpressionAccessor.get(OgnlContext, Object)
calls.- Specified by:
toSetSourceString
in interfaceJavaSource
- Overrides:
toSetSourceString
in classSimpleNode
- Returns:
- Literal java string representation of an object get.
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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 interfaceNode
- 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
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