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41 lines (35 loc) · 1.24 KB
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/*
* Copyright (c) 2004, 2005, 2006 TADA AB - Taby Sweden
* Distributed under the terms shown in the file COPYRIGHT
* found in the root folder of this project or at
* http://eng.tada.se/osprojects/COPYRIGHT.html
*
* @author Thomas Hallgren
*/
#ifndef __pljava_type_Coerce_h
#define __pljava_type_Coerce_h
#include "pljava/type/Type.h"
#ifdef __cplusplus
extern "C" {
#endif
/**************************************************************************
* The Coerce class extends the Type and adds the members necessary to
* perform standard Postgres input/output type coersion.
*
* @author Thomas Hallgren
*
**************************************************************************/
/* Create a type that will use the coerce function denoted by coerceFunctionID
* to coerce Datums before they are passed to the object coercion function
* of the originalType.
*/
extern Type Coerce_createIn(Type originalType, Type source, Oid coerceFunctionID);
/* Create a type that will coerce an object into the type denoted by the
* originalType and then coerce this datum using the coerce function denoted
* by the coerceFunctionID.
*/
extern Type Coerce_createOut(Type originalType, Type dest, Oid coerceFunctionID);
#ifdef __cplusplus
}
#endif
#endif