I am using Jibx for marshalling / unmarshalling Java objects. I am randomly running into the exception - "org.jibx.runtime.
JiBXException:
Unable to access binding information for class". I do not face this
exception every time the object is marshalled. It happens only
sometimes and that too randomly.
I have basically have 2 simple classes Area and City, where Area
has a reference of City in it. I use hibernate queries to load a list
of Area objects based on a City selected.
The bindings for the objects are given below.
<mapping class="com.redbus.homedelivery.orm.Area1" name="area1">
<value style="element" name="area-id" field="areaId" usage="optional" get-method="getAreaId" set-method="setAreaId"/>
<value style="element" name="area-name" field="areaName"
usage="optional" get-method="getAreaName" set-method="setAreaName"/>
<value style="element" name="pincode" field="pincode"
usage="optional" get-method="getPincode" set-method="setPincode"/>
<structure field="city1" usage="optional" get-method="getCity1" set-method="setCity1"/>
</mapping>
<mapping class="com.redbus.homedelivery.orm.City1" name="city1">
<value style="element" name="city-id" field="cityId" usage="optional" get-method="getCityId" set-method="setCityId"/>
<value style="element" name="city-name" field="cityName"
usage="optional" get-method="getCityName"
set-method="setCityName"/>
</mapping>
I use the following ant task to compile the bindings.
<target name="bind" depends="compile">
<taskdef name="bind" classname="org.jibx.binding.ant.CompileTask">
<classpath>
<fileset dir="${lib}" includes="*.jar"/>
</classpath>
</taskdef>
<bind verbose="true" load="true" binding="${config.dir.core}/jibx_binding/binding.xml">
<classpath>
<pathelement path="${build.classes.dir}"/>
<pathelement location="${lib}/jibx-run.jar"/>
</classpath>
</bind>
</target>
One
thing to note is, my objects are compiled into the same location where
the jibx bindings are compiled. In this case, I have both
Area1.class and JiBX_HomeDelivery_hd_core_src_main_config_jibx_binding_bindingArea1_access.class (generated class) under the same classes folder in Tomcat WEB-INF.
Another point is, some of the properties in other objects share the
same name with the Area classs. For e.g, area is a property of another
object Address.
I use the following code snippet to generate the xml -
IBindingFactory bfact;
bfact = BindingDirectory.getFactory(obj.getClass());
// marshal root object back out to document in memory
IMarshallingContext mctx = bfact.createMarshallingContext();
mctx.setIndent(2);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
mctx.marshalDocument(obj, "UTF-8", null, bos);
xml = new String(bos.toByteArray(),"UTF-8");
Can anyone throw some light on what may be the issue ?
Thanks in advance.
Regds
Sundeep
