private Object newInstance(Class clazz) {
ReflectClass classReflector = reflector().forClass(clazz);
Object obj = classReflector.newInstance();
if (obj == null) {
throw new IllegalArgumentException("No usable constructor for Class " + clazz);
}
return obj;
}
private Constraint addInterfaceConstraint(ReflectClass claxx) {
Collection4 classes = stream().classCollection().forInterface(claxx);
if (classes.size() == 0) {
QConClass qcc = new QConClass(_trans, null, null, claxx);
addConstraint(qcc);
return qcc;
}
Iterator4 i = classes.iterator();
Constraint constr = null;
while (i.moveNext()) {
ClassMetadata classMetadata = (ClassMetadata) i.current();
ReflectClass classMetadataClaxx = classMetadata.classReflector();
if (classMetadataClaxx != null) {
if (!classMetadataClaxx.isInterface()) {
if (constr == null) {
constr = constrain(classMetadataClaxx);
} else {
constr = constr.or(constrain(classMetadata.classReflector()));
}
}
}
}
return constr;
}
private Constraint addClassConstraint(ReflectClass claxx) {
if (isTheObjectClass(claxx)) {
return null;
}
if (claxx.isInterface()) {
return addInterfaceConstraint(claxx);
}
final Collection4 newConstraints = introduceClassConstrain(claxx);
if (newConstraints.isEmpty()) {
QConClass qcc = new QConClass(_trans, claxx);
addConstraint(qcc);
return qcc;
}
return toConstraint(newConstraints);
}
/**
* This is to ensure that reflector.forObject(GenericArray) returns an instance of
* GenericArrayClass instead of GenericClass http://tracker.db4o.com/jira/browse/COR-376
*/
public void testGenericArrayClass() {
ExtObjectContainer oc = fixture().db();
initGenericObjects();
ReflectClass elementType = oc.reflector().forName(PERSON_CLASSNAME);
Object array = reflector().array().newInstance(elementType, 5);
ReflectClass arrayClass = oc.reflector().forObject(array);
Assert.isTrue(arrayClass.isArray());
Assert.isTrue(arrayClass instanceof GenericArrayClass);
arrayClass = oc.reflector().forName(array.getClass().getName());
Assert.isTrue(arrayClass.isArray());
Assert.isTrue(arrayClass instanceof GenericArrayClass);
arrayClass = oc.reflector().forClass(array.getClass());
Assert.isTrue(arrayClass.isArray());
Assert.isTrue(arrayClass instanceof GenericArrayClass);
Assert.areEqual(arrayClass.getName(), ReflectPlatform.fullyQualifiedName(array.getClass()));
Assert.areEqual("(GA) " + elementType.getName(), array.toString());
}
private boolean isTheObjectClass(ReflectClass claxx) {
return claxx.equals(stream()._handlers.ICLASS_OBJECT);
}