How to use

alterDimension

method

in

org.apache.lens.cube.metadata.CubeMetastoreClient

/**
 * Alter dimension specified by the dimension name to new definition
 *
 * @param newDim  The new dimension definition
 * @throws HiveException
 */
public void alterDimension(XDimension newDim) throws HiveException, LensException {
 alterDimension(newDim.getName(), JAXBUtils.dimensionFromXDimension(newDim));
}

/**
 * Alter dimension specified by the dimension name to new definition
 *
 * @param newDim  The new dimension definition
 * @throws HiveException
 */
public void alterDimension(XDimension newDim) throws HiveException, LensException {
 alterDimension(newDim.getName(), JAXBUtils.dimensionFromXDimension(newDim));
}

@Override
public void updateDimension(LensSessionHandle sessionid, String dimName, XDimension dimension)
 throws LensException {
 try (SessionContext ignored = new SessionContext(sessionid)){
  getClient(sessionid).alterDimension(dimension);
  log.info("Altered dimension " + dimName);
 } catch (HiveException e) {
  throw new LensException(e);
 }
}

public <T extends Equals & HashCode & ToString> void updateEntity(String name, T entity)
 throws LensException, HiveException {
 if (entity instanceof XStorage) {
  alterStorage((XStorage) entity);
 } else if (entity instanceof XCube) {
  alterCube((XCube)entity);
 } else if (entity instanceof XDimension) {
  alterDimension((XDimension) entity);
 } else if (entity instanceof XFact) {
  alterCubeFactTable((XFact) entity);
 } else if (entity instanceof XDimensionTable) {
  alterCubeDimensionTable((XDimensionTable) entity);
 } else if (entity instanceof XSegmentation) {
  alterSegmentation((XSegmentation) entity);
 } else {
  throw new LensException("Unable to alter entity " + entity + " as it's unrecognizable: " + entity.getClass());
 }
}

public <T extends Equals & HashCode & ToString> void updateEntity(String name, T entity)
 throws LensException, HiveException {
 if (entity instanceof XStorage) {
  alterStorage((XStorage) entity);
 } else if  (entity instanceof XCube) {
  alterCube((XCube)entity);
 } else if (entity instanceof XDimension) {
  alterDimension((XDimension) entity);
 } else if (entity instanceof XFact) {
  alterCubeFactTable((XFact) entity);
 } else if (entity instanceof XDimensionTable) {
  alterCubeDimensionTable((XDimensionTable) entity);
 } else if (entity instanceof XSegmentation) {
  alterSegmentation((XSegmentation) entity);
 } else {
  throw new LensException("Unable to alter entity " + entity + " as it's unrecognizable: " + entity.getClass());
 }
}

client.alterDimension(city.getName(), city);
Dimension cityAltered = client.getDimension(city.getName());
assertEquals(1, cityAltered.getExpressionByName("stateAndCountry").getExpressions().size());
toAlter.alterJoinChain(zipState);
client.alterDimension(zipDim.getName(), toAlter);
Dimension altered = client.getDimension(zipDim.getName());