128 lines
4.4 KiB
Java
Executable file
128 lines
4.4 KiB
Java
Executable file
/*****************************************************************************
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of the HDF Java Products distribution. *
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* The full copyright notice, including terms governing use, modification, *
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* and redistribution, is contained in the files COPYING and Copyright.html. *
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* COPYING can be found at the root of the source code distribution tree. *
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* Or, see http://hdfgroup.org/products/hdf-java/doc/Copyright.html. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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****************************************************************************/
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package ncsa.hdf.object.fits;
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import java.util.*;
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import ncsa.hdf.object.*;
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/**
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* An H5Group represents HDF5 group, inheriting from Group.
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* Every HDF5 object has at least one name. An HDF5 group is used to store
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* a set of the names together in one place, i.e. a group. The general
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* structure of a group is similar to that of the UNIX file system in
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* that the group may contain references to other groups or data objects
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* just as the UNIX directory may contain subdirectories or files.
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* <p>
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* @version 1.1 9/4/2007
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* @author Peter X. Cao
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*/
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public class FitsGroup extends Group
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{
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public static final long serialVersionUID = HObject.serialVersionUID;
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/**
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* The list of attributes of this data object. Members of the list are
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* instance of Attribute.
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*/
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private List attributeList;
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/** The default object ID for HDF5 objects */
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private final static long[] DEFAULT_OID = {0};
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/**
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* Constructs an HDF5 group with specific name, path, and parent.
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* <p>
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* @param fileFormat the file which containing the group.
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* @param name the name of this group.
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* @param path the full path of this group.
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* @param parent the parent of this group.
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* @param oid the unique identifier of this data object.
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*/
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public FitsGroup(
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FileFormat fileFormat,
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String name,
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String path,
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Group parent,
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long[] theID) {
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super (fileFormat, name, path, parent, ((theID == null) ? DEFAULT_OID : theID));
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}
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/*
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* (non-Javadoc)
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* @see ncsa.hdf.object.DataFormat#hasAttribute()
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*/
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public boolean hasAttribute () { return false; }
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// Implementing DataFormat
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public List getMetadata() throws Exception {
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if (!isRoot()) {
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return null; // there is only one group in the file: the root
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}
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if (attributeList != null) {
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return attributeList;
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}
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return attributeList;
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}
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/**
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* Creates a new attribute and attached to this dataset if attribute does
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* not exist. Otherwise, just update the value of the attribute.
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*
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* <p>
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* @param info the atribute to attach
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*/
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public void writeMetadata(Object info) throws Exception {
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// not supported
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throw new UnsupportedOperationException("Unsupported operation for NetCDF.");
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}
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/**
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* Deletes an attribute from this dataset.
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* <p>
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* @param info the attribute to delete.
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*/
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public void removeMetadata(Object info) throws Exception {
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// not supported
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throw new UnsupportedOperationException("Unsupported operation for NetCDF.");
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}
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// Implementing DataFormat
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public int open() {
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// not supported
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throw new UnsupportedOperationException("Unsupported operation for NetCDF.");
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}
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/** close group access */
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public void close(int gid) {
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// not supported
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throw new UnsupportedOperationException("Unsupported operation for NetCDF.");
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}
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/**
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* Creates a new group.
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* @param file the file which the group is added to.
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* @param name the name of the group to create.
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* @param pgroup the parent group of the new group.
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* @return the new group if successful. Otherwise returns null.
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*/
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public static FitsGroup create(String name, Group pgroup)
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throws Exception {
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// not supported
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throw new UnsupportedOperationException("Unsupported operation for NetCDF.");
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}
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}
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