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Diffstat (limited to 'relcatalogif/basetype.hh')
| -rw-r--r-- | relcatalogif/basetype.hh | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/relcatalogif/basetype.hh b/relcatalogif/basetype.hh new file mode 100644 index 0000000..f01bd60 --- /dev/null +++ b/relcatalogif/basetype.hh @@ -0,0 +1,161 @@ +/* +* This file is part of rasdaman community. +* +* Rasdaman community is free software: you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation, either version 3 of the License, or +* (at your option) any later version. +* +* Rasdaman community is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with rasdaman community. If not, see <http://www.gnu.org/licenses/>. +* +* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann / +rasdaman GmbH. +* +* For more information please see <http://www.rasdaman.org> +* or contact Peter Baumann via <baumann@rasdaman.com>. +*/ +// -*-C++-*- (for Emacs) + +/************************************************************* + * + * + * PURPOSE: + * The BaseType class is the superclass for all classes + * describing the type of a cell + * + * + * COMMENTS: + * + ************************************************************/ + +#ifndef _BASETYPE_HH_ +#define _BASETYPE_HH_ + +#include <iostream> +#include "catalogmgr/ops.hh" +#include "type.hh" +#include "raslib/odmgtypes.hh" + +//@ManMemo: Module: {\bf relcatalogif}. + +/*@Doc: +BaseType is the abstract base class for all types usable as basetypes +for an MDD. At the moment, only atomic types are supported. Later +structured types will also be supported. + +Common to each basetype is the ability to get size information,to +print a cell and to provide means to carry out operations on cells of +this type. This functionality is defined as pure virtual functions +here. + +{\bf Interdependencies} + +Each \Ref{Tile} has a pointer to its BaseType. Pointers to BaseType +are also used in subclasses of \Ref{MDDObject}. +*/ + +class BaseType : public Type + { + public: + virtual unsigned int getSize() const = 0; + /*@Doc: + returns the size of one cell of the type in chars. + */ + + virtual r_ULong* convertToCULong(const char* cell, r_ULong* value) const = 0; + + /*@Doc: + returns value of the cell as a C #unsigned long#. + */ + + virtual char* makeFromCULong(char* cell, const r_ULong* value) const = 0; + /*@Doc: + returns C #unsigned long# in cell #cell#. + */ + + virtual r_Long* convertToCLong(const char* cell, r_Long* value) const = 0; + /*@Doc: + returns value of the cell as a C #long#. + */ + + virtual char* makeFromCLong(char* cell, const r_Long* value) const = 0; + /*@Doc: + returns C #long# in cell #cell#. + */ + + virtual double* convertToCDouble(const char* cell, double* value) const = 0; + /*@Doc: + returns value of the cell as a C #double#. + */ + + virtual char* makeFromCDouble(char* cell, const double* value) const = 0; + /*@Doc: + returns C #double# in cell #cell#. + */ + + virtual void printCell(ostream& stream, const char* cell) const = 0; + /*@Doc: + print contents of a cell to stream. + */ + + //@Man: methods for getting functions (used by \Ref{Tile}) + //@{ + /// get function object for condense operation. + virtual CondenseOp* getCondenseOp( Ops::OpType op ) const; + /*@Doc: + \Ref{CondenseOp} carrying out the operation op on a cell of this + type. The type of the result depends on the operation carried out, + but is usually of type self. See \Ref{Ops} for details. + */ + + /// get function object for unary operation. + virtual UnaryOp* getUnaryOp( Ops::OpType op, const BaseType* optype ) const; + /*@Doc: + Returns a pointer to a function object of a subclass of class + \Ref{UnaryOp} carrying out the operation {\tt op} on a cell of + type {\tt optype}. The result type has the type self. See + \Ref{Ops} for details. + */ + + /// get function object for binary operation. + virtual BinaryOp* getBinaryOp( Ops::OpType op, const BaseType* op1type, const BaseType* op2type) const; + /*@Doc: + Returns a pointer to a function object of a subclass of class + \Ref{BinaryOp} carrying out the operation {\tt op} on two cells of + type {\tt op1type} respective {\tt op2type}. The result type has + the type self. See \Ref{Ops} for details. + */ + //@} + + BaseType(); + /*@Doc: + default constructor, cannot be used. + */ + + BaseType(const OId& id) throw (r_Error); + + BaseType(const BaseType& old); + + BaseType& operator=(const BaseType& old); + + virtual ~BaseType(); + /*@Doc: + virtual destructor. + */ + + virtual int compatibleWith(const Type* aType) const; + /*@Doc: + returns true if my TypeEnum == aType->getType() + */ + + protected: + BaseType(const char* name); + }; + +#endif |