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package com.jpattern.orm.crud;

/**
 * 
 * @author Francesco Cina
 *
 * 22/mag/2011
 */
public interface CRUDQuery  {

	/**
	 * The pregenerated query to load an entity
	 * @return
	 */
	String getLoadQuery();

	/**
	 * The pregenerated query to save an entity
	 * @return
	 */
	String getSaveQuery();

	/**
	 * The pregenerated query to save an entity ignoring the generators if needed
	 * @return
	 */
	String getSaveQueryWithoutGenerators();

	/**
	 * The pregenerated query to delete an entity
	 * @return
	 */
	String getDeleteQuery();

	/**
	 * The pregenerated query to update an entity
	 * @return
	 */
	String getUpdateQuery();

	/**
	 * Return the ordered names of the columns used as alias
	 * for the table with the complete table name (with the schema name
	 * if exists). This is used to create custom select query
	 * @return
	 */
	String getBaseSelectClause();

	/**
	 * It works like getBaseSelectClause() but instead of using the
	 * complete table name as alias it uses a custom prefix to prepend
	 * to the column names
	 * @param rowNamePrefix
	 * @return
	 */
	String getBaseSelectClause(String rowNamePrefix);

	/**
	 * Return the name of the table (with the schema name
	 * if exists)
	 * @return
	 */
	String getBaseFromClause();

	/**
	 * If the bean has a version field, it will return the query to retrieve the updated version of the record
	 * @return
	 */
	String getBeanVersionQuery();

}