CQueryPlugin Class Reference

#include <CQueryPlugin.h>

List of all members.

Public Member Functions
CQuery *	makeQuery (CAccessorAdminCollection &inAccessorAdminCollection, CAlgorithm &inAlgorithm)
char *	getName ()
	CQueryPlugin (string, string, string)
	CQueryPlugin (CQueryPlugin &)
	~CQueryPlugin ()
bool	isSane () const
Protected Attributes
void *	mDlOpenHandle
string	mName
CQuery *(*	mMakeQuery )(CAccessorAdminCollection &inAccessorAdminCollection, CAlgorithm &inAlgorithm)
char *(*	mGetName )(void)
bool	mIsSane

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Detailed Description

Definition at line 42 of file CQueryPlugin.h.

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Constructor & Destructor Documentation

CQueryPlugin::CQueryPlugin	(	string	inLibraryDirName,
		string	inLibraryFileName,
		string	inLibraryName
	)

opens the library and sets the make query etc. functions

makes the CQueryPlugin. All it needs is:

Parameters:

inLibraryFileName

the file name of the shared object to be treated

Definition at line 41 of file CQueryPlugin.cc.

References mDlOpenHandle, mGetName, mIsSane, mMakeQuery, and mName.

                              :
  mGetName(0),
  mMakeQuery(0),
  mName("no name given"),
  mIsSane(0){

  char* lError;
  string lLibraryPath=inLibraryDirName+"/"+inLibraryFileName;
  string lStringGetClassName(inLibraryName+"_getClassName");
  string lStringMakeQuery(inLibraryName+"_makeQuery");

  mDlOpenHandle = dlopen (lLibraryPath.c_str(), RTLD_LAZY);
  if (!mDlOpenHandle) {
    cerr << "..Could not open library: " << endl
   << dlerror() << endl;
    //exit(1);
    mIsSane=0;
  }else{
    mGetName = (typeof(mGetName))dlsym(mDlOpenHandle, 
               lStringGetClassName.c_str());
    if ((lError = dlerror()) != NULL)  {
      cerr << lError << endl;
    }else{
      mName=(*mGetName)();
      mMakeQuery=(typeof(mMakeQuery))dlsym(mDlOpenHandle,
             lStringMakeQuery.c_str());
      if ((lError = dlerror()) != NULL)  {
  cerr << lError << endl;
      }else{
  mIsSane=1;
      }
    }
  }
}

CQueryPlugin::CQueryPlugin

(

CQueryPlugin &

inPlugin

)

copy all the content

Definition at line 78 of file CQueryPlugin.cc.

                                                :
  mGetName(inPlugin.mGetName),
  mMakeQuery(inPlugin.mMakeQuery),
  mName(inPlugin.mName){
}

CQueryPlugin::~CQueryPlugin

(

)

close the DlOpenHandle of the library

Definition at line 84 of file CQueryPlugin.cc.

References mDlOpenHandle.

                           {
  if(mDlOpenHandle){
    dlclose(mDlOpenHandle);
  }
}

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Member Function Documentation

CQuery * CQueryPlugin::makeQuery	(	CAccessorAdminCollection &	inAccessorAdminCollection,
		CAlgorithm &	inAlgorithm
	)

makes a CQuery object

Definition at line 28 of file CQueryPlugin.cc.

References mMakeQuery.

                                     {
  return (*mMakeQuery)(inAccessorAdminCollection,
           inAlgorithm);
}

char * CQueryPlugin::getName

(

)

gets the name of the plugin

gets the name of the plugin

Definition at line 34 of file CQueryPlugin.cc.

References mGetName.

Referenced by CDynamicQueryFactory::CDynamicQueryFactory().

                           {
  return (*mGetName)();
};

bool CQueryPlugin::isSane

(

)

const

is this well constructed

Definition at line 90 of file CQueryPlugin.cc.

References mIsSane.

Referenced by CDynamicQueryFactory::CDynamicQueryFactory().

                              {
  return mIsSane;
}

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Member Data Documentation

void* CQueryPlugin::mDlOpenHandle [protected]

the handle which enables us to open

Definition at line 45 of file CQueryPlugin.h.

Referenced by CQueryPlugin(), and ~CQueryPlugin().

string CQueryPlugin::mName [protected]

the name of the plugin

Definition at line 47 of file CQueryPlugin.h.

Referenced by CQueryPlugin().

CQuery*(* CQueryPlugin::mMakeQuery)(CAccessorAdminCollection &inAccessorAdminCollection, CAlgorithm &inAlgorithm) [protected]

the function for making a query object

Referenced by CQueryPlugin(), and makeQuery().

char*(* CQueryPlugin::mGetName)(void) [protected]

this function gives us the name of the plugin

Referenced by CQueryPlugin(), and getName().

bool CQueryPlugin::mIsSane [protected]

is this well constructed?

Definition at line 54 of file CQueryPlugin.h.

Referenced by CQueryPlugin(), and isSane().

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The documentation for this class was generated from the following files:

• gift/libMRML/include/CQueryPlugin.h
• gift/libMRML/cc/CQueryPlugin.cc