cimvalue.h

Pegasus is an open-source implementationof the DMTF CIM and WBEM standards. It is designed to be por

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#ifndef Pegasus_Value_h
#define Pegasus_Value_h

#include <Pegasus/Common/String.h>
#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/CIMType.h>
#include <Pegasus/Common/CIMObjectPath.h>
#include <Pegasus/Common/CIMObject.h>
#include <Pegasus/Common/CIMDateTime.h>
#include <Pegasus/Common/Exception.h>
#include <Pegasus/Common/Array.h>
#include <Pegasus/Common/Linkage.h>

PEGASUS_NAMESPACE_BEGIN

class CIMValueRep;
class CIMObject;

/**
    The CIMValue class represents a value of any of the CIM data types
    (see \Ref{CIMType} for a list of valid CIM data types). This class
    encapsulates a union which holds the current value. The class also
    has a type field indicating the type of that value.
*/
class PEGASUS_COMMON_LINKAGE CIMValue
{
public:
    /** Constructor - Creates an NULL CIMValue object set to null and 
        with type CIMType:none and !arraytype.
    */
    CIMValue();

    /** Constructor - Creates a NULL CIMValue object with the type and
        array indicator set as specified.
        @exception TypeMismatchException If the given type is not valid for a
        CIMValue object.
    */
    CIMValue(CIMType type, Boolean isArray, Uint32 arraySize = 0);

    /// Constructor.
    CIMValue(Boolean x);

    /// Constructor.
    CIMValue(Uint8 x);

    /// Constructor.
    CIMValue(Sint8 x);

    /// Constructor.
    CIMValue(Uint16 x);

    /// Constructor.
    CIMValue(Sint16 x);

    /// Constructor.
    CIMValue(Uint32 x);

    /// Constructor.
    CIMValue(Sint32 x);

    /// Constructor.
    CIMValue(Uint64 x);

    /// Constructor.
    CIMValue(Sint64 x);

    /// Constructor.
    CIMValue(Real32 x);

    /// Constructor.
    CIMValue(Real64 x);

    /// Constructor.
    CIMValue(const Char16& x);

    /// Constructor.
    CIMValue(const String& x);

    /// Constructor.
    CIMValue(const CIMDateTime& x);

    /// Constructor.
    CIMValue(const CIMObjectPath& x);

    /** Constructor.
        Note: Constructing a CIMValue with an uninitialized CIMObject is not 
        defined and results in a thrown UninitializedObjectException.
        Note: The input CIMObject will be cloned before putting it into the
        value of the constructed CIMValue. This is because CIMObjects use a
        shared representation model, but we don't want CIMObjects inside a 
        CIMValue to be altered by other external changes.
    */
    CIMValue(const CIMObject& x);

    /// Constructor.
    CIMValue(const Array<Boolean>& x);

    /// Constructor.
    CIMValue(const Array<Uint8>& x);

    /// Constructor.
    CIMValue(const Array<Sint8>& x);

    /// Constructor.
    CIMValue(const Array<Uint16>& x);

    /// Constructor.
    CIMValue(const Array<Sint16>& x);

    /// Constructor.
    CIMValue(const Array<Uint32>& x);

    /// Constructor.
    CIMValue(const Array<Sint32>& x);

    /// Constructor.
    CIMValue(const Array<Uint64>& x);

    /// Constructor.
    CIMValue(const Array<Sint64>& x);

    /// Constructor.
    CIMValue(const Array<Real32>& x);

    /// Constructor.
    CIMValue(const Array<Real64>& x);

    /// Constructor.
    CIMValue(const Array<Char16>& x);

    /// Constructor.
    CIMValue(const Array<String>& x);

    /// Constructor.
    CIMValue(const Array<CIMDateTime>& x);

    /// Constructor.
    CIMValue(const Array<CIMObjectPath>& x);

    /** Constructor.
        Note: Constructing a CIMValue with an uninitialized CIMObject anywhere
        in the input array is not defined and results in a thrown 
        UninitializedObjectException.
        Note: Each CIMObject in the input Array will be cloned before putting 
        the Array into the value of the constructed CIMValue. This is because
        CIMObjects use a shared representation model, but we don't want 
        CIMObjects inside a CIMValue to be altered by other external changes.
    */
    CIMValue(const Array<CIMObject>& x);

    /** Constructor.
        Note: If the input type is CIMObject, it/they will be cloned before
        putting it into the value of the constructed CIMValue. This is because
        CIMObjects use a shared representation model, but we don't want 
        CIMObjects inside a CIMValue to be altered by other external changes.
    */
    CIMValue(const CIMValue& x);

    /// Destructor.
    ~CIMValue();

    /** Operator =
        Note: If the right hand side type is CIMObject, it/they will be cloned
        before putting it into the value of the target CIMValue. This is because
        CIMObjects use a shared representation model, but we don't want 
        CIMObjects inside a CIMValue to be altered by other external changes.
    */
    CIMValue& operator=(const CIMValue& x);

    /** Assigns one CIMValue object to another CIMValue object.
        @param x - CIMValue object to be used for assignment.
        Note: If the input type is CIMObject, it/they will be cloned before 
        putting it into the value of the target CIMValue. This is because 
        CIMObjects use a shared representation model, but we don't want  
        CIMObjects inside a CIMValue to be altered by other external changes.
    */
    void assign(const CIMValue& x);

    /** Clears the attributes and value of the CIMValue object.
    */
    void clear();

    /** Compares the types of two CIMValues. This
        compares the type field and the array indicators.
        @return true if both are of the same type and both are either arrays
        or not, false otherwise.
        <pre>
            CIMValue a(Boolean(true);
            CIMValue b = a;
            if b.typeCompatible(a)
                ...
        </pre>
    */
    Boolean typeCompatible(const CIMValue& x) const;

    /** Determines if the value is an array.
        @return true if the value is an array, false otherwise.
    */
    Boolean isArray() const;

    /** Determines whether the CIMvalue object is Null. 
        Null is the specific condition where no value has
        yet been set. If a CIMValue object is Null, any get on that 
        object will create an exception.
        @return true if the CIMValue object is Null, false otherwise.
    */
    Boolean isNull() const;

    /** Gets the size of an Array CIMValue.
        @return The number of entries in the array.
    */
    Uint32 getArraySize() const;

    /** Gets the CIMType attribute for the CIMValue.
        @return the CIMType value.
    */
    CIMType getType() const;

    /** Sets the CIMValue a NULL, but with valid CIMType and array 
        characteristics.
        @param type - CIMType for this CIMValue.
        @param isArray - Boolean indicating whether this is an array CIMValue.
        @param arraySize - Optional parameter indicating the array size.
        <pre>
            CIMValue value;             
            value.setNullValue(CIMType::BOOLEAN, false); 
        </pre>
    */
    void setNullValue(CIMType type, Boolean isArray, Uint32 arraySize = 0);

    /** Sets the type, Array attribute and puts the value provided
        into the value of the target CIMValue. 
        <pre>
            CIMValue x;