(file) Return to CQLExpression.h CVS log (file) (dir) Up to [Pegasus] / pegasus / src / Pegasus / CQL

File: [Pegasus] / pegasus / src / Pegasus / CQL / CQLExpression.h (download)
Revision: 1.6, Sat Feb 5 22:59:15 2005 UTC (19 years, 5 months ago) by karl
Branch: MAIN
CVS Tags: PEP217_PRE_BRANCH, PEP217_POST_BRANCH, PEP217_BRANCH, PEP214ROOT, PEP214BRANCH, PEP214-root, PEP214-branch, PEP-214B-root
Changes since 1.5: +8 -4 lines
BUG#: 2656
TITLE: License statement update to 2005

DESCRIPTION: All .h, .cpp and the wql, cql, compile *.l and *.y files along
with the .java files in providermanager2/jmpi updated to use the license
statement in doc/license.txt
Tested on windows and visual test of all diffs.

//%2005////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation, The Open Group.
// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//==============================================================================
//
// Authors: David Rosckes (rosckes@us.ibm.com)
//          Bert Rivero (hurivero@us.ibm.com)
//          Chuck Carmack (carmack@us.ibm.com)
//          Brian Lucier (lucier@us.ibm.com)
//
// Modified By: 
//
//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_CQLExpression_h
#define Pegasus_CQLExpression_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/CQL/CQLValue.h>
#include <Pegasus/CQL/Linkage.h>
#include <Pegasus/Common/ArrayInternal.h>
#include <Pegasus/CQL/CQLTerm.h>

#ifdef PEGASUS_USE_EXPERIMENTAL_INTERFACES

PEGASUS_NAMESPACE_BEGIN

class PEGASUS_CQL_LINKAGE CQLFactory;
class PEGASUS_CQL_LINKAGE CQLExpressionRep;
class PEGASUS_QUERYCOMMON_LINKAGE QueryContext;

/**  
    The enum is private, but the definition is public.
*/
enum TermOpType {TERM_ADD,TERM_SUBTRACT};

/*
#ifndef PEGASUS_ARRAY_T
#define PEGASUS_ARRAY_T TermOpType
#include <Pegasus/Common/ArrayInter.h>
#undef PEGASUS_ARRAY_T
#endif
*/

/**
    The CQLExpression class encapsulates a generic CQL expression to make it
    easier to break into components and process the expression.  
*/

class PEGASUS_CQL_LINKAGE CQLExpression
{
 public:
  
  /** 
      Contructs CQLExpression default object.
      
      @param  - None.
      @return - None.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  CQLExpression();

  /** 
      Contructs CQLExpression with a CQLTerm.
      
      @param  - theTerm - A CQLTerm used to create CQLExpression.
      @return - None.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  CQLExpression(const CQLTerm& theTerm);
  
  /** 
      Contructs CQLExpression with a CQLExpression object. (copy-constructor)
      
      @param  - inExpress - Object to be copied.
      @return - None.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  CQLExpression(const CQLExpression& inExpress);
  
  /** 
      Destructs the CQLExpression object.
      
      @param  - None.
      @return - None.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  ~CQLExpression();

  /** the resolveValue method evaluates the expression and returns the value.
      Any property that need to be resolved into a value is taken from the
      CIMInstance.
      
      @param  - CI - the CIMInstance to be evaluated.
      @param  - QueryCtx - The QueryContext used to access the repository.
      @return - The resolved CQLValue.
      @throw  - CQLSyntaxErrorException.
      <I><B>Experimental Interface</B></I><BR>
  */
  CQLValue resolveValue(const CIMInstance& CI, const QueryContext& QueryCtx);
  
  /** The appendOperation is used by Bison.
      It is invoked 0 or more times for the CQLExpression, and
      when invoked will always pass in an integer that is the Term operation
      type and a CQLTerm object.
      
      @param  - theTermOpType - the type of operation being appended.
      @param  - theTerm - the term to be operated on.
      @return - None.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  void appendOperation(const TermOpType theTermOpType, const CQLTerm& theTerm);
  
  /** 
      Returns a string representation of the object.
      
      @param  - None.
      @return - A string
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  String toString()const;
  
  /** 
      Will return true if the object has only one CQLTerm object within it.
      
      @param  - None.
      @return - true or false
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  Boolean isSimple()const;
  
  /** 
      Will return true if the CQLExpression resolves to a simple value.
      
      @param  - None.
      @return - None.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  Boolean isSimpleValue()const;
  
  /** 
      Retrieve an array of all the CQLTerms for this expression.
      
      @param  - None.
      @return - An array of CQLTerm.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  Array<CQLTerm> getTerms()const;
  
  /** 
      Retrieve an array of all the TermOpType for this expression.
            
      @param  - None.
      @return - None.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  Array<TermOpType> getOperators()const;
  
  /** 
      Calling applyContext function for every internal object.  This
      will fully qualify the Chained Identifiers within all the CQLValue objects.
          
      @param  - inContext - Query Context used to access the repository.
      @param  - inCid - Chained Identifier used for standalone symbolic constants.  
      @return - None.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  void applyContext(QueryContext& inContext, 
		    CQLChainedIdentifier inCid = CQLChainedIdentifier());
  
  /** 
      Assignment operation.
      
      @param  - rhs - CQLExpression to be assigned.
      @return - Assigned value.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  CQLExpression& operator=(const CQLExpression& rhs);
  
  /** 
      Compare to CQLExpressions for equality
      
      @param  - expr - rightside value of operation
      @return - true or false.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  /*
  Boolean operator==(const CQLExpression& expr)const;
   */
  /** 
      Compare to CQLExpressions for non-equality
      
      @param  - expr - rightside value of operation
      @return - true or false.
      @throw  - None.
      <I><B>Experimental Interface</B></I><BR>
  */
  /*
  Boolean operator!=(const CQLExpression& expr)const;
  */
  friend class CQLFactory;
  
 private:
  
  CQLExpressionRep *_rep;   
};

/*
#ifndef PEGASUS_ARRAY_T
#define PEGASUS_ARRAY_T CQLExpression
#include <Pegasus/Common/ArrayInter.h>
#undef PEGASUS_ARRAY_T
#endif
*/

PEGASUS_NAMESPACE_END

#endif 
#endif 

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