org.apache.wicket.extensions.markup.html.repeater.tree.table.NodeModel.java Source code

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.wicket.extensions.markup.html.repeater.tree.table;

import java.util.Arrays;

import org.apache.wicket.extensions.markup.html.repeater.tree.ITreeProvider;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.IWrapModel;

/**
 * A model wrapping the actual node model, carrying additional information about the parental
 * branches.
 * 
 * @see #getBranches()
 * @see ITreeProvider#model(Object)
 * 
 * @author svenmeier
 * @param <T>
 *            type of nodes
 */
public class NodeModel<T> implements IWrapModel<T> {

    private static final long serialVersionUID = 1L;

    private IModel<T> model;

    private boolean[] branches;

    /**
     * Wrap the given model.
     * 
     * @param model
     *            model to wrap
     * @param branches
     */
    public NodeModel(IModel<T> model, boolean[] branches) {
        this.model = model;
        this.branches = branches;
    }

    /**
     * Get the wrapped model.
     * 
     * @return wrapped model
     */
    @Override
    public IModel<T> getWrappedModel() {
        return model;
    }

    @Override
    public T getObject() {
        return model.getObject();
    }

    @Override
    public void setObject(T object) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void detach() {
        model.detach();
    }

    public int getDepth() {
        return branches.length;
    }

    public boolean[] getBranches() {
        return branches;
    }

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

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof NodeModel<?>) {
            NodeModel<?> nodeModel = (NodeModel<?>) obj;

            return Arrays.equals(this.branches, nodeModel.branches) && this.model.equals((nodeModel).model);
        }
        return false;
    }
}