org.oscarehr.common.model.AbstractModel.java Source code

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Here is the source code for org.oscarehr.common.model.AbstractModel.java

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/**
 *
 * Copyright (c) 2005-2012. Centre for Research on Inner City Health, St. Michael's Hospital, Toronto. All Rights Reserved.
 * This software is published under the GPL GNU General Public License.
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * This software was written for
 * Centre for Research on Inner City Health, St. Michael's Hospital,
 * Toronto, Ontario, Canada
 */

package org.oscarehr.common.model;

import java.util.List;

import org.apache.commons.lang.builder.ReflectionToStringBuilder;
import org.oscarehr.util.MiscUtils;

public abstract class AbstractModel<T> implements java.io.Serializable {
    protected static final String OBJECT_NOT_YET_PERISTED = "The object is not persisted yet, this operation requires the object to already be persisted.";

    public abstract T getId();

    @Override
    public String toString() {
        return (ReflectionToStringBuilder.toString(this));
    }

    @Override
    public int hashCode() {
        if (getId() == null) {
            StackTraceElement[] stack = new Throwable().getStackTrace();
            for (int i = 0; i < stack.length; i++) {
                if (stack[i].getClassName().equals("org.oscarehr.common.model.AbstractModel")
                        && stack[i].getMethodName().equals("toString")) {
                    return super.hashCode();
                }
            }
            MiscUtils.getLogger().warn(OBJECT_NOT_YET_PERISTED, new Exception());
            return (super.hashCode());
        }

        return (getId().hashCode());
    }

    @Override
    public boolean equals(Object o) {
        if (getClass() != o.getClass())
            return (false);

        @SuppressWarnings("unchecked")
        AbstractModel<T> abstractModel = (AbstractModel<T>) o;
        if (getId() == null) {
            MiscUtils.getLogger().warn(OBJECT_NOT_YET_PERISTED, new Exception());
        }

        return (getId().equals(abstractModel.getId()));
    }

    /**
     * This method checks to see if there is an entry in the list with the corresponding primary key, it does not check to see that the other values are the
     * same or not.
     */
    public static <X extends AbstractModel<?>> boolean existsId(List<X> list, X searchModel) {
        Object searchPk = searchModel.getId();
        for (X tempModel : list) {
            Object tempPk = tempModel.getId();
            if (searchPk.equals(tempPk))
                return (true);
        }

        return (false);
    }

}