FeatureStateModel.java

/*
 * Copyright 2017
 * Ubiquitous Knowledge Processing (UKP) Lab and FG Language Technology
 * Technische Universität Darmstadt
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package de.tudarmstadt.ukp.clarin.webanno.ui.annotation.detail;

import org.apache.wicket.model.IModel;
import org.apache.wicket.model.IObjectClassAwareModel;
import org.apache.wicket.util.lang.Objects;

import de.tudarmstadt.ukp.clarin.webanno.api.annotation.model.AnnotatorState;
import de.tudarmstadt.ukp.clarin.webanno.api.annotation.model.FeatureState;
import de.tudarmstadt.ukp.clarin.webanno.model.AnnotationFeature;

public class FeatureStateModel implements IModel<FeatureState>, IObjectClassAwareModel<FeatureState>
{
	private static final long serialVersionUID = 1L;

	private final IModel<AnnotatorState> state;
	private final AnnotationFeature feature;

	public FeatureStateModel(final IModel<AnnotatorState> aState, final AnnotationFeature aFeature)
	{
	    state = aState;
	    feature = aFeature;
	}

	@Override
	public FeatureState getObject()
	{
		return state.getObject().getFeatureState(feature);
	}

	@Override
	public void setObject(FeatureState object)
	{
	    FeatureState fm = state.getObject().getFeatureState(feature);
	    fm.value = object.value;
	    // Probably don't need to copy the other fields
	}

	/**
	 * @see org.apache.wicket.model.IDetachable#detach()
	 */
	@Override
	public void detach()
	{
		// Do nothing.
	}
	
    public static FeatureStateModel of(final IModel<AnnotatorState> aState,
            FeatureState aFeatureModel)
    {
        return new FeatureStateModel(aState, aFeatureModel.feature);
    }

    @Override
    public int hashCode()
    {
        return feature.hashCode();
    }

    @Override
    public boolean equals(Object obj)
    {
        if (this == obj)
        {
            return true;
        }
        if (!(obj instanceof FeatureStateModel))
        {
            return false;
        }
        FeatureStateModel that = (FeatureStateModel)obj;
        return Objects.equal(feature, that.feature);
    }

    @Override
    public Class<FeatureState> getObjectClass()
    {
        return FeatureState.class;
    }
}