Add openDataSet method in generated classes

src/BackEnd/backend.cpp

@@ -247,6 +247,10 @@ std::string ph5_backendTableHeader(PTable & table){
 	body += "\t\tH5::DataSet createDataSet(H5::H5File & file, size_t nbRow) const;\n";
 	body += "\t\tH5::DataSet createDataSet(H5::Group & group, size_t nbRow) const;\n\n";
 	
+	body += "\t\tH5::DataSet openDataSet(const std::string & fileName) const;\n";
+	body += "\t\tH5::DataSet openDataSet(const H5::H5File & file) const;\n";
+	body += "\t\tH5::DataSet openDataSet(const H5::Group & group) const;\n\n";
+	
 	body += ph5_backendTableHeaderRowSetterGetter(table);
 	
 	body += ph5_backendTableHeaderSetter(table);
@@ -371,7 +375,7 @@ std::string ph5_backendTableSourceRead(const PTable & table){
 	body += "/**\t@param file : HDF5 file to be used\n";
 	body += "*/\n";
 	body += "void " + name + "::read(const H5::H5File & file){\n";
-	body += "\tH5::DataSet dataset = file.openDataSet(p__tableName);\n";
+	body += "\tH5::DataSet dataset = openDataSet(file);\n";
 	body += "\treadDataSet(dataset);\n";
 	body += "}\n\n";
 	
@@ -379,7 +383,7 @@ std::string ph5_backendTableSourceRead(const PTable & table){
 	body += "/**\t@param group : HDF5 group to be used\n";
 	body += "*/\n";
 	body += "void " + name + "::read(const H5::Group & group){\n";
-	body += "\tH5::DataSet dataset = group.openDataSet(p__tableName);\n";
+	body += "\tH5::DataSet dataset = openDataSet(group);\n";
 	body += "\treadDataSet(dataset);\n";
 	body += "}\n\n";
 	
@@ -399,7 +403,7 @@ std::string ph5_backendTableSourceRead(const PTable & table){
 	body += " * \t@param nbRow : number of rows the "+name+" class needs to load (Will reallocate the "+name+" is the number of rows is greater than the number off already allocated rows)\n";
 	body += "*/\n";
 	body += "void " + name + "::read(const H5::H5File & file, size_t offset, size_t nbRow){\n";
-	body += "\tH5::DataSet dataset = file.openDataSet(p__tableName);\n";
+	body += "\tH5::DataSet dataset = openDataSet(file);\n";
 	body += "\treadDataSet(dataset, offset, nbRow);\n";
 	body += "}\n\n";
 	
@@ -409,7 +413,7 @@ std::string ph5_backendTableSourceRead(const PTable & table){
 	body += " * \t@param nbRow : number of rows the "+name+" class needs to load (Will reallocate the "+name+" is the number of rows is greater than the number off already allocated rows)\n";
 	body += "*/\n";
 	body += "void " + name + "::read(const H5::Group & group, size_t offset, size_t nbRow){\n";
-	body += "\tH5::DataSet dataset = group.openDataSet(p__tableName);\n";
+	body += "\tH5::DataSet dataset = openDataSet(group);\n";
 	body += "\treadDataSet(dataset, offset, nbRow);\n";
 	body += "}\n\n";
 	return body;
@@ -492,6 +496,42 @@ std::string ph5_backendTableSourceCreateDataSet(const PTable & table){
 	return body;
 }
 
+///Save the source of the given PTable
+/**	@param table : PTable to be used
+ * 	@return corresponding string
+*/
+std::string ph5_backendTableSourceOpenDataSet(const PTable & table){
+	std::string body(""), name(table.getName());
+	body += "///Open and write the table " + name + " in given file\n";
+	body += "/**\t@param fileName : name of the HDF5 file to be used\n";
+	body += " * \t@return opened DataSet\n";
+	body += "*/\n";
+	body += "H5::DataSet " + name + "::openDataSet(const std::string & fileName) const{\n";
+	body += "\tH5::H5File file(fileName, H5F_ACC_RDONLY);\n";
+	body += "\treturn openDataSet(file);\n";
+	body += "}\n\n";
+	
+	body += "///Open the DataSet of the table " + name + " in given file\n";
+	body += "/**\t@param file : HDF5 file to be used\n";
+	body += " * \t@return opened DataSet\n";
+	body += "*/\n";
+	body += "H5::DataSet " + name + "::openDataSet(const H5::H5File & file) const{\n";
+	body += "\tH5::DataSet dataset = file.openDataSet(p__tableName);\n";
+	body += "\treturn dataset;\n";
+	body += "}\n\n";
+	
+	body += "///Open the DataSet of the table " + name + " in given group\n";
+	body += "/**\t@param group : HDF5 group to be used\n";
+	body += " * \t@return opened DataSet\n";
+	body += "*/\n";
+	body += "H5::DataSet " + name + "::openDataSet(const H5::Group & group) const{\n";
+	body += "\tH5::DataSet dataset = group.openDataSet(p__tableName);\n";
+	body += "\treturn dataset;\n";
+	body += "}\n\n";
+	
+	return body;
+}
+
 ///Save the header of the given PTable
 /**	@param table : PTable to be used
  * 	@return corresponding string
@@ -1019,6 +1059,7 @@ std::string ph5_backendTableSource(PTable & table){
 	body += ph5_backendTableSourceRead(table);
 	body += ph5_backendTableSourceWrite(table);
 	body += ph5_backendTableSourceCreateDataSet(table);
+	body += ph5_backendTableSourceOpenDataSet(table);
 	
 	body += ph5_backendTableSourceRowSetterGetter(table);
 	body += ph5_backendTableSourceSetter(table);