pegasus/src/Pegasus/CQL/CQLSimplePredicateRep.h - diff

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Diff for /pegasus/src/Pegasus/CQL/CQLSimplePredicateRep.h between version 1.1 and 1.1.2.2

version 1.1, 2004/09/08 03:52:03

version 1.1.2.2, 2004/09/16 15:47:46

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#ifndef Pegasus_CQLSimplePredicateRep_h

#define Pegasus_CQLSimplePredicateRep_h

#include <Pegasus/Common/Config.h>

#include <Pegasus/CQL/Linkage.h>

#include <Pegasus/CQL/CQLExpression.h>

//#include <Pegasus/Common/CIMInstance.h>

//#include <Pegasus/CQL/QueryContext.h>

PEGASUS_NAMESPACE_BEGIN

class PEGASUS_CQL_LINKAGE CQLExpression;

class PEGASUS_CQL_LINKAGE CQLFactory;

class PEGASUS_CQL_LINKAGE QueryContext;

class CQLSimplePredicateRep

{

public:

CQLSimplePredicateRep(){}

CQLSimplePredicateRep(const CQLExpression& inExpression);

CQLSimplePredicateRep(const CQLExpression& inExpression, ExpressionOpType inOperator);

CQLSimplePredicateRep(const CQLExpression& leftSideExpression, const CQLExpression& rightSideExpression, ExpressionOpType inOperator);

CQLSimplePredicateRep(const CQLSimplePredicateRep& rep);

~CQLSimplePredicateRep(){}

/**

CQLExpressions:

For an expression, CQLExpression::getValue is called and will return a

CQLValue.

The appropriate operator is then invoked on CQLValue and that operator

function will

enforce the type restrictions as documented in the DMTF CQL

Specification.

That operator then determines whether the predicate is TRUE / FALSE.

CQLPredicates:

The CQLPredicate is non-terminal if it contains only CQLPredicate

objects.

A non-terminal CQLPredicate is evaluated by in turn evaluating the

contained CQLPredicates and

boolean operator.

Valid operators are:

AND, OR

For the evaluate method on each CQLPredicate. the CQLPredicate is

evaluated to TRUE/FALSE and

the result of the evaluation is then applied to the appropriate boolean

operator.

The result of the evaluation is and then inverted if the _invert member

variable is set to TRUE

and then returned to the caller.

Boolean evaluate(CIMInstance CI, QueryContext& QueryCtx);

CQLExpression getLeftExpression();

CQLExpression getRightExpression();

enum ExpressionOpType getOperation();

String toString();

Boolean isSimpleValue();

friend class CQLFactory;

private:

CQLExpression _leftSide;

CQLExpression _rightSide;

ExpressionOpType _operator;

};

PEGASUS_NAMESPACE_END

#endif

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