diff options
Diffstat (limited to 'HDF5Examples/JAVA/H5G/H5Ex_G_Create.java')
-rw-r--r-- | HDF5Examples/JAVA/H5G/H5Ex_G_Create.java | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/HDF5Examples/JAVA/H5G/H5Ex_G_Create.java b/HDF5Examples/JAVA/H5G/H5Ex_G_Create.java new file mode 100644 index 0000000..b842af6 --- /dev/null +++ b/HDF5Examples/JAVA/H5G/H5Ex_G_Create.java @@ -0,0 +1,86 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * All rights reserved. * + * * + * This file is part of HDF5. The full HDF5 copyright notice, including * + * terms governing use, modification, and redistribution, is contained in * + * the COPYING file, which can be found at the root of the source code * + * distribution tree, or in https://www.hdfgroup.org/licenses. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/************************************************************ + This example shows how to create, open, and close a group. + ************************************************************/ + +import hdf.hdf5lib.H5; +import 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() + { + long file_id = HDF5Constants.H5I_INVALID_HID; + long group_id = HDF5Constants.H5I_INVALID_HID; + + // 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(); } +} |