com.opensymphony.xwork.interceptor
Class ParameterRemoverInterceptor
java.lang.Object
com.opensymphony.xwork.interceptor.AroundInterceptor
com.opensymphony.xwork.interceptor.ParameterRemoverInterceptor
- All Implemented Interfaces:
- Interceptor, Serializable
public class ParameterRemoverInterceptor
- extends AroundInterceptor
This is a simple WebWork interceptor that allows parameters (matching
one of the paramNames attribute csv value) to be
removed from the parameter map if they match a certain value
(matching one of the paramValues attribute csv value), before they
are set on the action. A typical usage would be to want a dropdown/select
to map onto a boolean value on an action. The select had the options
none, yes and no with values -1, true and false. The true and false would
map across correctly. However the -1 would be set to false.
This was not desired as one might needed the value on the action to stay null.
This interceptor fixes this by preventing the parameter from ever reaching
the action.
- paramNames - A comma separated value (csv) indicating the parameter name
whose param value should be considered that if they match any of the
comma separated value (csv) from paramValues attribute, shall be
removed from the parameter map such that they will not be applied
to the action
- paramValues - A comma separated value (csv) indicating the parameter value that if
matched shall have its parameter be removed from the parameter map
such that they will not be applied to the action
No intended extension point
<action name="sample" class="org.martingilday.Sample">
<interceptor-ref name="paramRemover">
<param name="paramNames">aParam,anotherParam</param>
<param name="paramValues">--,-1</param>
</interceptor-ref>
<interceptor-ref name="default-stack" />
...
</action>
- Version:
- $Date$ $Id$
- Author:
- martin.gilday
- See Also:
- Serialized Form
Method Summary |
protected void |
after(ActionInvocation dispatcher,
String result)
Empty implementation. |
protected void |
before(ActionInvocation invocation)
Decide if the parameter should be removed from the parameter map based on
paramNames and paramValues . |
void |
setParamNames(String paramNames)
Allows paramNames attribute to be set as comma-separated-values (csv). |
void |
setParamValues(String paramValues)
Allows paramValues attribute to be set as a comma-separated-values (csv). |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ParameterRemoverInterceptor
public ParameterRemoverInterceptor()
after
protected void after(ActionInvocation dispatcher,
String result)
throws Exception
- Empty implementation.
- Specified by:
after
in class AroundInterceptor
result
- the result value returned by the invocation
- Throws:
Exception
before
protected void before(ActionInvocation invocation)
throws Exception
- Decide if the parameter should be removed from the parameter map based on
paramNames
and paramValues
.
- Specified by:
before
in class AroundInterceptor
- Throws:
Exception
- See Also:
AroundInterceptor.before(com.opensymphony.xwork.ActionInvocation)
setParamNames
public void setParamNames(String paramNames)
- Allows
paramNames
attribute to be set as comma-separated-values (csv).
- Parameters:
paramNames
- the paramNames to set
setParamValues
public void setParamValues(String paramValues)
- Allows
paramValues
attribute to be set as a comma-separated-values (csv).
- Parameters:
paramValues
- the paramValues to set