com.voodoodyne.jackson.jsog.JSOGGenerator Maven / Gradle / Ivy

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package com.voodoodyne.jackson.jsog;



import com.fasterxml.jackson.annotation.ObjectIdGenerator;

/**
 * Use this as an object id generator and your class will serialize as jsog.
 *
 * @author Jeff Schnitzer 
 */
public class JSOGGenerator extends ObjectIdGenerator {

	private static final long serialVersionUID = 1L;

	protected transient int _nextValue;
    protected final Class _scope;

    public JSOGGenerator() { this(null, -1); }

    public JSOGGenerator(Class scope, int nextValue) {
        _scope = scope;
        _nextValue = nextValue;
    }

    @Override
    public Class getScope() {
        return _scope;
    }

    @Override
    public boolean canUseFor(ObjectIdGenerator gen) {
        return (gen.getClass() == getClass()) && (gen.getScope() == _scope);
    }

	@Override
	public ObjectIdGenerator forScope(Class scope) {
        return (_scope == scope) ? this : new JSOGGenerator(scope, _nextValue);
	}

	@Override
	public ObjectIdGenerator newForSerialization(Object context) {
        return new JSOGGenerator(_scope, 1);
	}

	@Override
	public com.fasterxml.jackson.annotation.ObjectIdGenerator.IdKey key(Object key) {
        return new IdKey(getClass(), _scope, key);
	}

	@Override
	public JSOGRef generateId(Object forPojo) {
        int id = _nextValue;
        ++_nextValue;
        return new JSOGRef(id);
	}

    @Override
    public boolean maySerializeAsObject() {
        return true;
    }

    @Override
    public boolean isValidReferencePropertyName(String name, Object parser) {
        return JSOGRef.REF_KEY.equals(name);
    }
}