Implements weak plugins by rewriting them to ordinary rules. More...
#include <include/dlvhex2/WeakConstraintPlugin.h>
Data Structures | |
| class | CtxData |
Public Member Functions | |
| WeakConstraintPlugin () | |
| Constructor. | |
| virtual | ~WeakConstraintPlugin () |
| Destructor. | |
| virtual void | printUsage (std::ostream &o) const |
| Output help message for this plugin. | |
| virtual void | processOptions (std::list< const char * > &pluginOptions, ProgramCtx &) |
| Processes options for this plugin. | |
| virtual PluginRewriterPtr | createRewriter (ProgramCtx &) |
| Rewriter for hex-programs. | |
| virtual void | setupProgramCtx (ProgramCtx &) |
| Altering the ProgramCtx permits plugins to do many things, e.g., * installing model and finish callbacks * removing default model (and final) hooks * setting maxint * changing and configuring the solver backend to be used See internal plugins for example usage. | |
| virtual std::vector < PluginAtomPtr > | createAtoms (ProgramCtx &) const |
| Publish external computation sources to dlvhex. | |
Detailed Description
Implements weak plugins by rewriting them to ordinary rules.
Definition at line 43 of file WeakConstraintPlugin.h.
Constructor & Destructor Documentation
Constructor.
Definition at line 63 of file WeakConstraintPlugin.cpp.
References PluginInterface::setNameVersion().
| WeakConstraintPlugin::~WeakConstraintPlugin | ( | ) | [virtual] |
Destructor.
Definition at line 70 of file WeakConstraintPlugin.cpp.
Member Function Documentation
| std::vector< PluginAtomPtr > WeakConstraintPlugin::createAtoms | ( | ProgramCtx & | ctx | ) | const [virtual] |
Publish external computation sources to dlvhex.
This is the central location where the user's atoms are made public. dlvhex will call this function for all found plugins, which write their atoms in the provided map. This map associates strings with pointers to PluginAtom objects. The strings denote the name of the atom as it should be used in the program.
Override this method to publish your atoms.
Example:
std::vector<PluginAtomPtr> createAtoms(ProgramCtx& ctx) const { std::vector<PluginAtomPtr> ret; PluginAtomPtr newatom1(new MyAtom1); PluginAtomPtr newatom2(new MyAtom2); ret["newatom1"] = newatom1; ret["newatom2"] = newatom2; return ret; }
Here, we assume to have defined atoms MyAtom1 and MyAtom2 derived from PluginAtom. These atom can now be used in a HEX-program with the predicate &newatom1[]() and &newatom2[]().
Reimplemented from PluginInterface.
Definition at line 269 of file WeakConstraintPlugin.cpp.
| PluginRewriterPtr WeakConstraintPlugin::createRewriter | ( | ProgramCtx & | ) | [virtual] |
Rewriter for hex-programs.
The rewriters are called on the parsed HEX program (which may have been rewritten by a PluginConverter). Hence, a rewriter can expect a well-formed HEX-program represented in ProgramCtx::edb and ProgramCtx::idb as input and must of course also take care of keeping that representation correct program.
Reimplemented from PluginInterface.
Definition at line 248 of file WeakConstraintPlugin.cpp.
References DBGLOG, WeakConstraintPlugin::CtxData::enabled, and ProgramCtx::getPluginData().
| void WeakConstraintPlugin::printUsage | ( | std::ostream & | o | ) | const [virtual] |
Output help message for this plugin.
Reimplemented from PluginInterface.
Definition at line 76 of file WeakConstraintPlugin.cpp.
| void WeakConstraintPlugin::processOptions | ( | std::list< const char * > & | pluginOptions, |
| ProgramCtx & | ctx | ||
| ) | [virtual] |
Processes options for this plugin.
If you override this method, remove all options your plugin recognizes from pluginOptions. (Do not free the pointers, the const char* directly come from argv.) You can store configuration of your plugin using PluginData and ProgramCtx::getPluginData (see there for more information.)
Reimplemented from PluginInterface.
Definition at line 89 of file WeakConstraintPlugin.cpp.
References WeakConstraintPlugin::CtxData::allmodels, DBGLOG, WeakConstraintPlugin::CtxData::enabled, ProgramCtx::getPluginData(), and WARNING().
| void WeakConstraintPlugin::setupProgramCtx | ( | ProgramCtx & | ) | [virtual] |
Altering the ProgramCtx permits plugins to do many things, e.g., * installing model and finish callbacks * removing default model (and final) hooks * setting maxint * changing and configuring the solver backend to be used See internal plugins for example usage.
Reimplemented from PluginInterface.
Definition at line 260 of file WeakConstraintPlugin.cpp.
References DBGLOG, WeakConstraintPlugin::CtxData::enabled, and ProgramCtx::getPluginData().
The documentation for this class was generated from the following files:
- include/dlvhex2/WeakConstraintPlugin.h
- src/WeakConstraintPlugin.cpp
