public abstract class AbstractGxpResult extends Object implements Result
The abstract base class for our Struts 2 GXP result type implementation. It outputs GXP, and pulls GXP parameters from Struts 2's value stack. Implementing classes have to:
execute(ActionInvocation)
, which must instruct the
GXP to write itself to the output stream. See GxpResult
for a
sample implementation.public static final
field DEFAULT_PARAM with
the value 'gxpName'. Struts 2 needs this to set the name of your
template into this object.If you want to use instantiated GXPs (using the nested
Interface
), you can set the useuseInstances
parameter to
true
:
<result-types> <result-type name="gxp" class="org.apache.struts2.views.gxp.GxpResult"> <param name="useInstances">true</param> </result-type> </result-types>
This means that Struts 2 will attempt to instantiate the Interface
using the ObjectFactory
. If
com.google.webwork.GuiceWebWorkIntegrationModule
is installed, or
com.google.webwork.ContainerObjectFactory
is set as the static
ObjectFactory
instance, then Guice will be used to instantiate the
GXP instance; otherwise, only GXPs with no constructor parameters will work.
Modifier and Type | Class and Description |
---|---|
protected static class |
AbstractGxpResult.DefaultProvider
Uses reasonable defaults to provide resources.
|
protected static interface |
AbstractGxpResult.GxpResourceProvider
Provides resources necessary to execute a GXP.
|
Constructor and Description |
---|
AbstractGxpResult() |
Modifier and Type | Method and Description |
---|---|
protected String |
getGxpName() |
protected boolean |
getUseInstances() |
void |
setGxpName(String gxpName) |
void |
setUseInstances(boolean useInstances) |
Copyright © 2000–2020 Apache Software Foundation. All rights reserved.