@Override
	protected boolean refresh() {
		try {
			DBRecord rec = moduleAdapter.getModuleRecord(key);
			if (rec != null) {
				record = rec;
				childCount = rec.getIntValue(ModuleDBAdapter.MODULE_CHILD_COUNT_COL);
				return true;
			}
		}
		catch (IOException e) {
			moduleMgr.dbError(e);
		}
		return false;
	}
Constructor
@param moduleMgr module manager
@param cache ModuleDB cache
@param record database record for this module
@throws IOException if database IO error occurs
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/module/ModuleDB.java