org.hibernate.UnresolvableObjectException.java Source code

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Here is the source code for org.hibernate.UnresolvableObjectException.java

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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate;

import java.io.Serializable;

import org.hibernate.pretty.MessageHelper;

/**
 * Thrown when Hibernate could not resolve an object by id, especially when
 * loading an association.
 *
 * @author Gavin King
 */
public class UnresolvableObjectException extends HibernateException {
    private final Serializable identifier;
    private final String entityName;

    /**
     * Constructs an UnresolvableObjectException using the specified information.
     *
     * @param identifier The identifier of the entity which could not be resolved
     * @param entityName The name of the entity which could not be resolved
     */
    public UnresolvableObjectException(Serializable identifier, String entityName) {
        this("No row with the given identifier exists", identifier, entityName);
    }

    protected UnresolvableObjectException(String message, Serializable identifier, String clazz) {
        super(message);
        this.identifier = identifier;
        this.entityName = clazz;
    }

    /**
     * Factory method for building and throwing an UnresolvableObjectException if the entity is null.
     *
     * @param entity The entity to check for nullness
     * @param identifier The identifier of the entity
     * @param entityName The name of the entity
     *
     * @throws UnresolvableObjectException Thrown if entity is null
     */
    public static void throwIfNull(Object entity, Serializable identifier, String entityName)
            throws UnresolvableObjectException {
        if (entity == null) {
            throw new UnresolvableObjectException(identifier, entityName);
        }
    }

    public Serializable getIdentifier() {
        return identifier;
    }

    public String getEntityName() {
        return entityName;
    }

    @Override
    public String getMessage() {
        return super.getMessage() + ": " + MessageHelper.infoString(entityName, identifier);
    }

}