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package org.apache.cayenne.reflect;

/**
 * A convenience base superclass for {@link ToOneProperty} implementors.
 * 
 * @since 3.0
 */
public abstract class BaseToOneProperty extends BaseArcProperty implements ToOneProperty {

    public BaseToOneProperty(ClassDescriptor owner, ClassDescriptor targetDescriptor,
            Accessor accessor, String reverseName) {
        super(owner, targetDescriptor, accessor, reverseName);
    }

    public void setTarget(Object source, Object target, boolean setReverse) {
        Object oldTarget = readProperty(source);
        if (oldTarget == target) {
            return;
        }

        // TODO, Andrus, 2/9/2006 - CayenneDataObject also invokes "willConnect" and has a
        // callback to ObjectStore to handle flattened....

        if (setReverse) {
            setReverse(source, oldTarget, target);
        }

        writeProperty(source, oldTarget, target);
    }

    @Override
    public boolean visit(PropertyVisitor visitor) {
        return visitor.visitToOne(this);
    }
}