Hi, I have an DummyAction{
private List<Record> records;
}
which has the following converter
DummyAction-conversion.properties:
KeyProperty_records=id
Element_records=com.package.model.RecordImpl
CreateIfNull_records=true
When the value stack is being populated in the ParametersInterceptor
method setParameter()
newStack.setParameter(name, value);
the list records is not populated correctly.
Looking for the problem I see that in the OgnlValueStack class an
exception is caught telling me that the Interface Record cannot be
instantiated.
The method is:
private void setValue(String expr, Object value, boolean
throwExceptionOnFailure, boolean evalExpression) {
Map<String, Object> context = getContext();
try {
trySetValue(expr, value, throwExceptionOnFailure, context,
evalExpression);
} catch (OgnlException e) {
handleOgnlException(expr, value, throwExceptionOnFailure,
e);
} catch (RuntimeException re) { //XW-281
handleRuntimeException(expr, value, throwExceptionOnFailure,
re);
} finally {
cleanUpContext(context);
}
}
And the exception is:
Error creating bean with name 'com.package.model.Record':
Instantiation of bean failed; nested exception is
org.springframework.beans.BeanInstantiationException: Could not
instantiate bean class [com.package.model.Record]: Specified
class is an interface - Class:
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory
File: AbstractAutowireCapableBeanFactory.java
Method: instantiateBean
Line: 1037 -
org/springframework/beans/factory/support/AbstractAutowireCapableBeanFactory.java:1037:-1
Now I know I can't instantiate interfaces and changing the list type to:
private List records;
there is no exception and the list records has the correct values but,
in both ways my converter does not seen to be used (I'm testing this
using a breakpoint in XWorkConverter).
So my questions are:
1) Which is the proper way of using the conversion when declaring the
List type as an interface, List<Record>?
2) Why is my converter not being used in either situation of declaring
List and List<Record>?
This question is related to Miguel Almeida post if you want to check
additional context, but I think this information should be sufficient.
Thanks
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