All the metadata type and some other atoms object can be serialized/deserialized to and from the disk.
To serialize an object you need to create an archive object and use the serialize functions or the << operator.
AtomsCore::DoubleMetadata doubleMeta(5.6); AtomsCore::Archive archive(doubleMeta.memSize()); archive << doubleMeta; // or doubleMeta.serialize(archive); AtomsCore::IntMetadata intMeta(8); AtomsCore::MapMetadata mapMeta; mapMeta.addEntry("key1", &doubleMeta); mapMeta.addEntry("key2", &intMeta); AtomsCore::Archive archiveMap(mapMeta.memSize()); mapMeta.serialise(archiveMap); archiveMap.writeToFile("myArchive.atoms")
To deserialize use the deserialise functions or the >> operator
AtomsCore::MapMetadata mapMeta; AtomsCore::Archive archiveMap; if (archiveMap.readFromFile("myArchive.atoms")) { mapMeta.deserialise(archiveMap); }