com.fasterxml.jackson.databind.ext.Java7SupportImpl Maven / Gradle / Ivy
package com.fasterxml.jackson.databind.ext;
import java.beans.ConstructorProperties;
import java.beans.Transient;
import com.fasterxml.jackson.databind.PropertyName;
import com.fasterxml.jackson.databind.introspect.Annotated;
import com.fasterxml.jackson.databind.introspect.AnnotatedParameter;
import com.fasterxml.jackson.databind.introspect.AnnotatedWithParams;
/**
* @since 2.8
*/
public class Java7SupportImpl extends Java7Support
{
@SuppressWarnings("unused") // compiler warns, just needed side-effects
private final Class _bogus;
public Java7SupportImpl() {
// Trigger loading of annotations that only JDK 7 has, to trigger
// early fail (see [databind#2466])
Class cls = Transient.class;
cls = ConstructorProperties.class;
_bogus = cls;
}
@Override
public Boolean findTransient(Annotated a) {
Transient t = a.getAnnotation(Transient.class);
if (t != null) {
return t.value();
}
return null;
}
@Override
public Boolean hasCreatorAnnotation(Annotated a) {
ConstructorProperties props = a.getAnnotation(ConstructorProperties.class);
// 08-Nov-2015, tatu: One possible check would be to ensure there is at least
// one name iff constructor has arguments. But seems unnecessary for now.
if (props != null) {
return Boolean.TRUE;
}
return null;
}
@Override
public PropertyName findConstructorName(AnnotatedParameter p)
{
AnnotatedWithParams ctor = p.getOwner();
if (ctor != null) {
ConstructorProperties props = ctor.getAnnotation(ConstructorProperties.class);
if (props != null) {
String[] names = props.value();
int ix = p.getIndex();
if (ix < names.length) {
return PropertyName.construct(names[ix]);
}
}
}
return null;
}
}