Package org.apache.commons.ognl
Class MapPropertyAccessor
- java.lang.Object
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- org.apache.commons.ognl.MapPropertyAccessor
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- All Implemented Interfaces:
PropertyAccessor
public class MapPropertyAccessor extends Object implements PropertyAccessor
Implementation of PropertyAccessor that sets and gets properties by storing and looking up values in Maps. $Id$
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Constructor Summary
Constructors Constructor Description MapPropertyAccessor()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Object
getProperty(Map<String,Object> context, Object target, Object name)
Extracts and returns the property of the given name from the given target object.String
getSourceAccessor(OgnlContext context, Object target, Object index)
Returns a java string representing the textual method that should be called to access a particular element.String
getSourceSetter(OgnlContext context, Object target, Object index)
Returns a java string representing the textual method that should be called to set a particular element.void
setProperty(Map<String,Object> context, Object target, Object name, Object value)
Sets the value of the property of the given name in the given target object.
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Method Detail
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getProperty
public Object getProperty(Map<String,Object> context, Object target, Object name) throws OgnlException
Description copied from interface:PropertyAccessor
Extracts and returns the property of the given name from the given target object.- Specified by:
getProperty
in interfacePropertyAccessor
- Parameters:
context
- The current execution context.target
- the object to get the property fromname
- the name of the property to get.- Returns:
- the current value of the given property in the given object
- Throws:
OgnlException
- if there is an error locating the property in the given object
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setProperty
public void setProperty(Map<String,Object> context, Object target, Object name, Object value) throws OgnlException
Description copied from interface:PropertyAccessor
Sets the value of the property of the given name in the given target object.- Specified by:
setProperty
in interfacePropertyAccessor
- Parameters:
context
- The current execution context.target
- the object to set the property inname
- the name of the property to setvalue
- the new value for the property.- Throws:
OgnlException
- if there is an error setting the property in the given object
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getSourceAccessor
public String getSourceAccessor(OgnlContext context, Object target, Object index)
Description copied from interface:PropertyAccessor
Returns a java string representing the textual method that should be called to access a particular element. (ie "get")- Specified by:
getSourceAccessor
in interfacePropertyAccessor
- Parameters:
context
- The current execution context.target
- The current object target on the expression tree being evaluated.index
- The index object that will be placed inside the string to access the value.- Returns:
- The source accessor method to call.
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getSourceSetter
public String getSourceSetter(OgnlContext context, Object target, Object index)
Description copied from interface:PropertyAccessor
Returns a java string representing the textual method that should be called to set a particular element. (ie "set")- Specified by:
getSourceSetter
in interfacePropertyAccessor
- Parameters:
context
- The current execution context.target
- The current object target on the expression tree being evaluated.index
- The index object that will be placed inside the string to set the value.- Returns:
- The source setter method to call.
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