I would like to configure JAXB so that it trims whitespaces on all string fields
I saw the following answer : How to configure JAXB so it trims whitespaces when unmarshalling tag value?
But I do not want to have to annotate all string fields as per the suggested answer
@XmlElement(required=true)
@XmlJavaTypeAdapter(MyNormalizedStringAdapter.class)
String name;
Thanks!
Create a XmlAdapter.
package com.foo.bar;
public class StringTrimAdapter extends XmlAdapter<String, String> {
@Override
public String unmarshal(String v) throws Exception {
if (v == null)
return null;
return v.trim();
}
@Override
public String marshal(String v) throws Exception {
if (v == null)
return null;
return v.trim();
}
}
Create a package-info.java file in com.foo.bar.
Add the following to the package-info.java file
@XmlJavaTypeAdapter(value=StringTrimAdapter.class,type=String.class)
package com.foo.bar;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
StringTrimAdapter to all String fields in com.foo.bar without any extra annotations.EDIT
Do note that if the package level annotation is too expansive for you, you could always apply a @XmlJavaTypeAdapter annotation to classes.
It might be worth mentioning, that in addition to writing an XmlAdapter, which performs the trimming, you can configure XJC to actually use this adapter in generated code. An example of how to do it:
<jaxb:globalBindings>
<xjc:javaType
name="java.lang.String"
xmlType="xs:string"
adapter="com.foo.bar.StringTrimAdapter"/>
</jaxb:globalBindings>
The above example uses the XmlAdapter given in Sahil's answer