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/************************************************************
This example shows how to create, open, and close a group.
This file is intended for use with HDF5 Library verion 1.6
************************************************************/
package examples.groups;
import ncsa.hdf.hdf5lib.H5;
import ncsa.hdf.hdf5lib.HDF5Constants;
public class H5Ex_G_Create {
private static String FILENAME = "H5Ex_G_Create.h5";
private static String GROUPNAME = "G1";
private static void CreateGroup() {
int file_id = -1;
int group_id = -1;
// Create a new file using default properties.
try {
file_id = H5.H5Fcreate(FILENAME, HDF5Constants.H5F_ACC_TRUNC,
HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT);
}
catch (Exception e) {
e.printStackTrace();
}
// Create a group in the file.
try {
if (file_id >= 0)
group_id = H5.H5Gcreate(file_id, "/" + GROUPNAME,
HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT);
}
catch (Exception e) {
e.printStackTrace();
}
// Close the group. The handle "group" can no longer be used.
try {
if (group_id >= 0)
H5.H5Gclose(group_id);
}
catch (Exception e) {
e.printStackTrace();
}
// Re-open the group, obtaining a new handle.
try {
if (file_id >= 0)
group_id = H5.H5Gopen(file_id, "/" + GROUPNAME, HDF5Constants.H5P_DEFAULT);
}
catch (Exception e) {
e.printStackTrace();
}
// Close the group.
try {
if (group_id >= 0)
H5.H5Gclose(group_id);
}
catch (Exception e) {
e.printStackTrace();
}
// Close the file.
try {
if (file_id >= 0)
H5.H5Fclose(file_id);
}
catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
H5Ex_G_Create.CreateGroup();
}
}