Package org.apache.commons.ognl
Class ObjectPropertyAccessor
- java.lang.Object
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- org.apache.commons.ognl.ObjectPropertyAccessor
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- All Implemented Interfaces:
PropertyAccessor
- Direct Known Subclasses:
ArrayPropertyAccessor
,EnumerationPropertyAccessor
,IteratorPropertyAccessor
,ListPropertyAccessor
,SetPropertyAccessor
public class ObjectPropertyAccessor extends Object implements PropertyAccessor
Implementation of PropertyAccessor that uses reflection on the target object's class to find a field or a pair of set/get methods with the given property name.
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Constructor Summary
Constructors Constructor Description ObjectPropertyAccessor()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Object
getPossibleProperty(Map<String,Object> context, Object target, String name)
Returns OgnlRuntime.NotFound if the property does not exist.Object
getProperty(Map<String,Object> context, Object target, Object oname)
Extracts and returns the property of the given name from the given target object.Class<?>
getPropertyClass(OgnlContext context, Object target, Object index)
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.boolean
hasGetProperty(Map<String,Object> context, Object target, Object oname)
boolean
hasGetProperty(OgnlContext context, Object target, Object oname)
boolean
hasSetProperty(Map<String,Object> context, Object target, Object oname)
boolean
hasSetProperty(OgnlContext context, Object target, Object oname)
Object
setPossibleProperty(Map<String,Object> context, Object target, String name, Object value)
Returns OgnlRuntime.NotFound if the property does not exist.void
setProperty(Map<String,Object> context, Object target, Object oname, 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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getPossibleProperty
public Object getPossibleProperty(Map<String,Object> context, Object target, String name) throws OgnlException
Returns OgnlRuntime.NotFound if the property does not exist.- Throws:
OgnlException
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setPossibleProperty
public Object setPossibleProperty(Map<String,Object> context, Object target, String name, Object value) throws OgnlException
Returns OgnlRuntime.NotFound if the property does not exist.- Throws:
OgnlException
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hasGetProperty
public boolean hasGetProperty(OgnlContext context, Object target, Object oname) throws OgnlException
- Throws:
OgnlException
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hasGetProperty
public boolean hasGetProperty(Map<String,Object> context, Object target, Object oname) throws OgnlException
- Throws:
OgnlException
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hasSetProperty
public boolean hasSetProperty(OgnlContext context, Object target, Object oname) throws OgnlException
- Throws:
OgnlException
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hasSetProperty
public boolean hasSetProperty(Map<String,Object> context, Object target, Object oname) throws OgnlException
- Throws:
OgnlException
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getProperty
public Object getProperty(Map<String,Object> context, Object target, Object oname) 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 fromoname
- 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 oname, 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 inoname
- 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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getPropertyClass
public Class<?> getPropertyClass(OgnlContext context, Object target, Object index)
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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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