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Hibernate's core ORM functionality

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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.sql.ast.spi;

/**
 * Access to appending SQL fragments to an in-flight buffer
 *
 * @author Steve Ebersole
 */
public interface SqlAppender {
	String NO_SEPARATOR = "";
	String COMA_SEPARATOR = ", ";
	String EMPTY_STRING = " ";

	String OPEN_PARENTHESIS = "(";
	String CLOSE_PARENTHESIS = ")";

	String PARAM_MARKER = "?";

	String NULL_KEYWORD = "null";

	/**
	 * Add the passed fragment into the in-flight buffer
	 */
	void appendSql(String fragment);
}