org.nakedobjects.runtime.transaction.facets.CollectionAddToFacetWrapTransaction Maven / Gradle / Ivy

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package org.nakedobjects.runtime.transaction.facets;

import org.nakedobjects.metamodel.adapter.NakedObject;
import org.nakedobjects.metamodel.facets.DecoratingFacet;
import org.nakedobjects.metamodel.facets.collections.modify.CollectionAddToFacet;
import org.nakedobjects.metamodel.facets.collections.modify.CollectionAddToFacetAbstract;
import org.nakedobjects.runtime.context.NakedObjectsContext;
import org.nakedobjects.runtime.persistence.PersistenceSession;
import org.nakedobjects.runtime.transaction.NakedObjectTransactionManager;
import org.nakedobjects.runtime.transaction.TransactionUtils;


public class CollectionAddToFacetWrapTransaction extends CollectionAddToFacetAbstract implements
        DecoratingFacet {

    private final CollectionAddToFacet underlyingFacet;

    public CollectionAddToFacet getDecoratedFacet() {
        return underlyingFacet;
    }

    public CollectionAddToFacetWrapTransaction(final CollectionAddToFacet underlyingFacet) {
        super(underlyingFacet.getFacetHolder());
        this.underlyingFacet = underlyingFacet;
    }

    public void add(final NakedObject inObject, final NakedObject value) {
        if (TransactionUtils.isTransient(inObject)) {
            underlyingFacet.add(inObject, value);
            return;
        }

        try {
            getTransactionManager().startTransaction();
            underlyingFacet.add(inObject, value);
            getTransactionManager().endTransaction();
        } catch (final RuntimeException e) {
            TransactionUtils.abort(getTransactionManager(), getFacetHolder());
            throw e;
        }
    }

    @Override
    public String toString() {
        return super.toString() + " --> " + underlyingFacet.toString();
    }

    
    /////////////////////////////////////////////////////////////////
    // Dependencies (from context)
    /////////////////////////////////////////////////////////////////
    
    private static NakedObjectTransactionManager getTransactionManager() {
        return getPersistenceSession().getTransactionManager();
    }

    private static PersistenceSession getPersistenceSession() {
        return NakedObjectsContext.getPersistenceSession();
    }


 
}

// Copyright (c) Naked Objects Group Ltd.