How to use

readGroup

method

in

ucar.nc2.ncml.NcMLReader

/**
 * Use NCML to directly modify the dataset
 *
 * @param targetDS   referenced dataset
 * @param parentElem parent element - usually the aggregation element of the ncml
 * @return new dataset with the merged info
 * @throws IOException on read error
 */
static public NetcdfDataset mergeNcMLdirect(NetcdfDataset targetDS, Element parentElem) throws IOException {
 NcMLReader reader = new NcMLReader();
 reader.readGroup(targetDS, targetDS, null, null, parentElem);
 targetDS.finish();
 return targetDS;
}

/**
 * Use NCML to directly modify the dataset
 *
 * @param targetDS   referenced dataset
 * @param parentElem parent element - usually the aggregation element of the ncml
 * @return new dataset with the merged info
 * @throws IOException on read error
 */
static public NetcdfDataset mergeNcMLdirect(NetcdfDataset targetDS, Element parentElem) throws IOException {
 NcMLReader reader = new NcMLReader();
 reader.readGroup(targetDS, targetDS, null, null, parentElem);
 targetDS.finish();
 return targetDS;
}

/**
 * Use NCML to directly modify the dataset
 *
 * @param targetDS   referenced dataset
 * @param parentElem parent element - usually the aggregation element of the ncml
 * @return new dataset with the merged info
 * @throws IOException on read error
 */
static public NetcdfDataset mergeNcMLdirect(NetcdfDataset targetDS, Element parentElem) throws IOException {
 NcMLReader reader = new NcMLReader();
 reader.readGroup(targetDS, targetDS, null, null, parentElem);
 targetDS.finish();
 return targetDS;
}

/**
 * Use NCML to modify the referenced dataset, create a new dataset with the merged info
 * Used to wrap each dataset of an aggregation before its aggregated
 *
 * @param ref        referenced dataset
 * @param parentElem parent element - usually the aggregation element of the ncml
 * @return new dataset with the merged info
 * @throws IOException on read error
 */
static public NetcdfDataset mergeNcML(NetcdfFile ref, Element parentElem) throws IOException {
 NetcdfDataset targetDS = new NetcdfDataset(ref, null); // no enhance
 NcMLReader reader = new NcMLReader();
 reader.readGroup(targetDS, targetDS, null, null, parentElem);
 targetDS.finish();
 return targetDS;
}

/**
 * Use NCML to modify the referenced dataset, create a new dataset with the merged info
 * Used to wrap each dataset of an aggregation before its aggregated
 *
 * @param ref        referenced dataset
 * @param parentElem parent element - usually the aggregation element of the ncml
 * @return new dataset with the merged info
 * @throws IOException on read error
 */
static public NetcdfDataset mergeNcML(NetcdfFile ref, Element parentElem) throws IOException {
 NetcdfDataset targetDS = new NetcdfDataset(ref, null); // no enhance
 NcMLReader reader = new NcMLReader();
 reader.readGroup(targetDS, targetDS, null, null, parentElem);
 targetDS.finish();
 return targetDS;
}

/**
 * Use NCML to modify the referenced dataset, create a new dataset with the merged info
 * Used to wrap each dataset of an aggregation before its aggregated
 *
 * @param ref        referenced dataset
 * @param parentElem parent element - usually the aggregation element of the ncml
 * @return new dataset with the merged info
 * @throws IOException on read error
 */
static public NetcdfDataset mergeNcML(NetcdfFile ref, Element parentElem) throws IOException {
 NetcdfDataset targetDS = new NetcdfDataset(ref, null); // no enhance
 NcMLReader reader = new NcMLReader();
 reader.readGroup(targetDS, targetDS, null, null, parentElem);
 targetDS.finish();
 return targetDS;
}

readGroup(targetDS, refds, null, null, netcdfElem);
String errors = errlog.toString();
if (errors.length() > 0)

readGroup(targetDS, refds, null, null, netcdfElem);
String errors = errlog.toString();
if (errors.length() > 0)

readGroup(targetDS, refds, null, null, netcdfElem);
String errors = errlog.toString();
if (errors.length() > 0)

readGroup(newds, refds, g, refg, gElem);
if (debugConstruct) System.out.println(" add group = " + g.getFullName());

readGroup(newds, refds, g, refg, gElem);
if (debugConstruct) System.out.println(" add group = " + g.getFullName());

readGroup(newds, refds, g, refg, gElem);
if (debugConstruct) System.out.println(" add group = " + g.getFullName());