/* pvEnumerated.h */
/**
 * Copyright - See the COPYRIGHT that is included with this distribution.
 * EPICS pvData is distributed subject to a Software License Agreement found
 * in file LICENSE that is included with this distribution.
 */
/**
 *  @author mrk
 */
#include <string>
#include <pv/pvType.h>
#include <pv/pvData.h>
#ifndef PVENUMERATED_H
#define PVENUMERATED_H
namespace epics { namespace pvData { 

class PVEnumerated {
public:
    PVEnumerated() {}
    //default constructors and destructor are OK
    //This class should not be extended
    //returns (false,true) if pvField(isNot, is valid enumerated structure
    //An automatic detach is issued if already attached.
    bool attach(PVFieldPtr const & pvField);
    void detach();
    bool isAttached();
    // each of the following throws logic_error is not attached to PVField
    // a set returns false if field is immutable
    bool setIndex(int32 index);
    int32 getIndex();
    String getChoice();
    bool choicesMutable();
    StringArrayPtr const & getChoices();
    int32 getNumberChoices();
    bool setChoices(StringArray & choices);
private:
    static String notFound;
    static String notAttached;
    PVIntPtr pvIndex;
    PVStringArrayPtr pvChoices;
};
    
}}
#endif  /* PVENUMERATED_H */