org.hibernate.engine.jdbc.dialect.spi.DatabaseMetaDataDialectResolutionInfoAdapter.java Source code

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Here is the source code for org.hibernate.engine.jdbc.dialect.spi.DatabaseMetaDataDialectResolutionInfoAdapter.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.dialect.spi;

import java.sql.DatabaseMetaData;
import java.sql.SQLException;

/**
 * An implementation of DialectResolutionInfo that delegates calls to a wrapped {@link DatabaseMetaData}.
 * <p/>
 * All {@link SQLException}s resulting from calls on the DatabaseMetaData are converted to the Hibernate
 * {@link org.hibernate.JDBCException} hierarchy.
 *
 * @author Steve Ebersole
 */
public class DatabaseMetaDataDialectResolutionInfoAdapter implements DialectResolutionInfo {
    private final DatabaseMetaData databaseMetaData;

    public DatabaseMetaDataDialectResolutionInfoAdapter(DatabaseMetaData databaseMetaData) {
        this.databaseMetaData = databaseMetaData;
    }

    @Override
    public String getDatabaseName() {
        try {
            return databaseMetaData.getDatabaseProductName();
        } catch (SQLException e) {
            throw BasicSQLExceptionConverter.INSTANCE.convert(e);
        }
    }

    @Override
    public int getDatabaseMajorVersion() {
        try {
            return interpretVersion(databaseMetaData.getDatabaseMajorVersion());
        } catch (SQLException e) {
            throw BasicSQLExceptionConverter.INSTANCE.convert(e);
        }
    }

    private static int interpretVersion(int result) {
        return result < 0 ? NO_VERSION : result;
    }

    @Override
    public int getDatabaseMinorVersion() {
        try {
            return interpretVersion(databaseMetaData.getDatabaseMinorVersion());
        } catch (SQLException e) {
            throw BasicSQLExceptionConverter.INSTANCE.convert(e);
        }
    }

    @Override
    public String getDriverName() {
        try {
            return databaseMetaData.getDriverName();
        } catch (SQLException e) {
            throw BasicSQLExceptionConverter.INSTANCE.convert(e);
        }
    }

    @Override
    public int getDriverMajorVersion() {
        return interpretVersion(databaseMetaData.getDriverMajorVersion());
    }

    @Override
    public int getDriverMinorVersion() {
        return interpretVersion(databaseMetaData.getDriverMinorVersion());
    }
}