Package ognl.enhance
Interface ExpressionAccessor
public interface ExpressionAccessor
Provides pure java expression paths to get/set values from an ognl expression. This
is achieved by taking an existing
Node
parsed expression and using bytecode
enhancements to do the same work using pure java vs the ognl interpreter.-
Method Summary
Modifier and TypeMethodDescriptionget
(OgnlContext context, Object target) Gets the value represented by this expression path, if any.void
set
(OgnlContext context, Object target, Object value) Sets the value represented by this expression path, if possible.void
setExpression
(Node expression) Used to set the original root expression node on instances where the compiled version has to fall back to interpreted syntax because of compilation failures.
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Method Details
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get
Gets the value represented by this expression path, if any.- Parameters:
context
- The standard ognl context used for variable substitution/etc.target
- The root object this expression is meant for.- Returns:
- The evaluated value, if any.
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set
Sets the value represented by this expression path, if possible.- Parameters:
context
- The standard ognl context used for variable substitution/etc.target
- The root object this expression is meant for.value
- The new value to set if this expression references a settable property.
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setExpression
Used to set the original root expression node on instances where the compiled version has to fall back to interpreted syntax because of compilation failures.- Parameters:
expression
- The root expression node used to generate this accessor.
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