org.hibernate.engine.jdbc.LobCreationContext.java Source code

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Here is the source code for org.hibernate.engine.jdbc.LobCreationContext.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.engine.jdbc;

import java.sql.Connection;
import java.sql.SQLException;

/**
 * Provides callback access into the context in which the LOB is to be created.
 *
 * @author Steve Ebersole
 */
public interface LobCreationContext {
    /**
     * The callback contract for making use of the JDBC {@link Connection}.
     */
    public static interface Callback<T> {
        /**
         * Perform whatever actions are necessary using the provided JDBC {@link Connection}.
         *
         * @param connection The JDBC {@link Connection}.
         *
         * @return The created LOB.
         *
         * @throws SQLException Indicates trouble accessing the JDBC driver to create the LOB
         */
        public T executeOnConnection(Connection connection) throws SQLException;
    }

    /**
     * Execute the given callback, making sure it has access to a viable JDBC {@link Connection}.
     *
     * @param callback The callback to execute .
     * @param <T> The Java type of the type of LOB being created.  One of {@link java.sql.Blob},
     * {@link java.sql.Clob}, {@link java.sql.NClob}
     *
     * @return The LOB created by the callback.
     */
    public <T> T execute(Callback<T> callback);
}