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#ifndef Pegasus_AssocClassCache_h
#define Pegasus_AssocClassCache_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/String.h>
#include <Pegasus/Common/CIMName.h>
#include <Pegasus/Common/ArrayInternal.h>
#include <Pegasus/Common/HashTable.h>
#include <Pegasus/Repository/PersistentStoreData.h>
#include <Pegasus/Repository/Linkage.h>

PEGASUS_NAMESPACE_BEGIN

class AssocClassCache;

/** Maintains association class caches for all namespaces.
*/
class PEGASUS_REPOSITORY_LINKAGE AssocClassCacheManager
{
public:

    AssocClassCacheManager();
    ~AssocClassCacheManager();

    /** Retrieves the association class cache for the given namespace.
    */
    AssocClassCache* getAssocClassCache(const String& nameSpace);

private:

    Array<AssocClassCache*> _assocClassCacheList;
};

/** Maintains a cache for all association classes in a namespace.
*/
class PEGASUS_REPOSITORY_LINKAGE AssocClassCache
{
public:

    AssocClassCache(const String& nameSpace);
    ~AssocClassCache();

    const String& getNameSpace()
    {
        return _nameSpace;
    }

    /** Retrieve an entry for an association class through direct
        access via the from class name.
    */
    Boolean getAssocClassEntry(
        const CIMName& fromClassName,
        Array<ClassAssociation>& entryList);

    /** Gets the names of the association classes which reference the specified
        classes.  The results can be constrained by specifying a set of
        resulting association classes and the property name that refers to the
        specified class.
    */
    Boolean getReferenceNames(
        const Array<CIMName>& classList,
        const Array<CIMName>& resultClassList,
        const String& role,
        Array<String>& referenceNames);

    /** Add a new entry to the association cache.
    */
    Boolean addRecord(
        const CIMName& fromClassName,
        const ClassAssociation& assocClassEntry);

    /** Remove an association record from the association cache specified by
        the given from class name and association name.
    */
    Boolean removeRecord(
        const CIMName& fromClassName,
        const CIMName& assocClassName);

    /** Remove association records from the association cache specified by the
        association class name.
    */
    Boolean removeAssocClassRecords(
        const CIMName& assocClassName);

    /** Check if the cache is loaded with objects already.
    */
    Boolean isActive();
    void setActive(Boolean flag);

private:
    String _nameSpace;
    Boolean _isInitialized;

    typedef HashTable<String, Array<ClassAssociation>,
        EqualNoCaseFunc, HashLowerCaseFunc > AssocClassCacheHashTableType;

    AssocClassCacheHashTableType _assocTable;
};

PEGASUS_NAMESPACE_END

#endif /* Pegasus_AssocClassCache_h */