org.hibernate.boot.SchemaAutoTooling.java Source code

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Here is the source code for org.hibernate.boot.SchemaAutoTooling.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.boot;

import org.hibernate.HibernateException;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.internal.util.StringHelper;

/**
 * Defines the possible values for "hbm2ddl_auto"
 *
 * @author Steve Ebersole
 */
public enum SchemaAutoTooling {
    /**
     * Drop the schema and recreate it on SessionFactory startup.
     */
    CREATE("create"),
    /**
     * Drop the schema and recreate it on SessionFactory startup.  Additionally, drop the
     * schema on SessionFactory shutdown.
     */
    CREATE_DROP("create-drop"),
    /**
     * Create the schema on SessionFactory startup.
     */
    CREATE_ONLY("create-only"),
    /**
     * Drop the schema and don't recreate it.
     */
    DROP("drop"),
    /**
     * Update (alter) the schema on SessionFactory startup.
     */
    UPDATE("update"),
    /**
     * Validate the schema on SessionFactory startup.
     */
    VALIDATE("validate"),
    /**
     * Do not attempt to update nor validate the schema.
     */
    NONE("none");

    private final String externalForm;

    SchemaAutoTooling(String externalForm) {
        this.externalForm = externalForm;
    }

    public static SchemaAutoTooling interpret(String configurationValue) {
        if (configurationValue == null) {
            return null;
        }
        configurationValue = configurationValue.trim();
        if (configurationValue.isEmpty() || NONE.externalForm.equals(configurationValue)) {
            return null;
        } else if (VALIDATE.externalForm.equals(configurationValue)) {
            return VALIDATE;
        } else if (UPDATE.externalForm.equals(configurationValue)) {
            return UPDATE;
        } else if (CREATE.externalForm.equals(configurationValue)) {
            return CREATE;
        } else if (CREATE_DROP.externalForm.equals(configurationValue)) {
            return CREATE_DROP;
        } else if (CREATE_ONLY.externalForm.equals(configurationValue)) {
            return CREATE_ONLY;
        } else if (DROP.externalForm.equals(configurationValue)) {
            return DROP;
        } else {
            throw new HibernateException("Unrecognized " + AvailableSettings.HBM2DDL_AUTO + " value: '"
                    + configurationValue
                    + "'.  Supported values include 'create', 'create-drop', 'create-only', 'drop', 'update', 'none' and 'validate'.");
        }
    }
}