baseten / Sources / BXPGQueryBuilder.h

// BXPGQueryBuilder.h
// BaseTen
// Copyright (C) 2006-2008 Marko Karppinen & Co. LLC.
// Before using this software, please review the available licensing options
// by visiting or by contacting
// us at Without an additional license, this software
// may be distributed only in compliance with the GNU General Public License.
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0,
// as published by the Free Software Foundation.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
// $Id$

#import <Foundation/Foundation.h>
@class BXDatabaseObject;
@class BXPGPredicateVisitor;
@class BXPGConstantParameterMapper;
@class PGTSConnection;
@class BXPGRelationAliasMapper;
@class BXPGFromItem;
@class BXEntityDescription;

enum BXPGQueryType
	kBXPGQueryTypeNone = 0,

 * \internal
 * \brief A facade for the predicate etc. handling classes.
@interface BXPGQueryBuilder : NSObject 
	BXPGPredicateVisitor* mPredicateVisitor;
	BXPGRelationAliasMapper* mRelationMapper;
	BXPGFromItem* mPrimaryRelation;
	enum BXPGQueryType mQueryType;
- (BXPGFromItem *) primaryRelation;
- (void) addPrimaryRelationForEntity: (BXEntityDescription *) entity;

- (NSString *) addParameter: (id) value;
- (NSArray *) parameters;

- (NSString *) fromClause;
- (NSString *) target;
- (NSString *) fromClauseForSelect;

- (struct bx_predicate_st) whereClauseForPredicate: (NSPredicate *) predicate 
														   object: (BXDatabaseObject *) object;
- (struct bx_predicate_st) whereClauseForPredicate: (NSPredicate *) predicate 
														   entity: (BXEntityDescription *) entity 
													   connection: (PGTSConnection *) connection;
- (void) setQueryType: (enum BXPGQueryType) queryType;
- (void) reset;
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