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Jodd DB is efficient and thin database facade; DbOom is convenient database object mapper.

There is a newer version: 6.0.0

// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// POSSIBILITY OF SUCH DAMAGE.

package jodd.db.oom;

import jodd.db.oom.sqlgen.ParameterValue;

import java.util.Map;

/**
 * Generates SQL queries.
 */
public interface DbSqlGenerator {

	/**
	 * Generates SQL query. May be called multiple times.
	 */
	String generateQuery();

	/**
	 * Returns a map of SQL parameters used by generated query.
	 * Must be invoked only after the {@link #generateQuery()}.
	 * May be null
	 */
	Map getQueryParameters();

	/**
	 * Returns an optional map of table and column names, used by {@link jodd.db.oom.mapper.ResultSetMapper}.
	 * May be null.
	 */
	Map getColumnData();

	/**
	 * Returns join hints. May be null.
	 */
	String[] getJoinHints();

}