How to use

getPartitions

method

in

org.apache.ignite.cache.query.SqlQuery

/** {@inheritDoc} */
@SuppressWarnings("deprecation")
@Override public SqlFieldsQuery generateFieldsQuery(String cacheName, SqlQuery qry) {
  String schemaName = schema(cacheName);
  String type = qry.getType();
  H2TableDescriptor tblDesc = schemaMgr.tableForType(schemaName, cacheName, type);
  if (tblDesc == null)
    throw new IgniteSQLException("Failed to find SQL table for type: " + type,
      IgniteQueryErrorCode.TABLE_NOT_FOUND);
  String sql;
  try {
    sql = H2Utils.generateFieldsQueryString(qry.getSql(), qry.getAlias(), tblDesc);
  }
  catch (IgniteCheckedException e) {
    throw new IgniteException(e);
  }
  SqlFieldsQuery res = new SqlFieldsQuery(sql);
  res.setArgs(qry.getArgs());
  res.setDistributedJoins(qry.isDistributedJoins());
  res.setLocal(qry.isLocal());
  res.setPageSize(qry.getPageSize());
  res.setPartitions(qry.getPartitions());
  res.setReplicatedOnly(qry.isReplicatedOnly());
  res.setSchema(schemaName);
  res.setSql(sql);
  res.setDataPageScanEnabled(qry.isDataPageScanEnabled());
  if (qry.getTimeout() > 0)
    res.setTimeout(qry.getTimeout(), TimeUnit.MILLISECONDS);
  return res;
}

/**
 * Execute distributed SQL query.
 *
 * @param cctx Cache context.
 * @param qry Query.
 * @param keepBinary Keep binary flag.
 * @return Cursor.
 */
public <K, V> QueryCursor<Cache.Entry<K,V>> querySql(final GridCacheContext<?,?> cctx, final SqlQuery qry,
  boolean keepBinary) {
  validateSqlQuery(qry, ctx, cctx);
  if (qry.isReplicatedOnly() && qry.getPartitions() != null)
    throw new CacheException("Partitions are not supported in replicated only mode.");
  if (qry.isDistributedJoins() && qry.getPartitions() != null)
    throw new CacheException(
      "Using both partitions and distributed JOINs is not supported for the same query");
  if ((qry.isReplicatedOnly() && cctx.isReplicatedAffinityNode()) || cctx.isLocal() || qry.isLocal())
    return queryLocalSql(cctx, qry, keepBinary);
  return queryDistributedSql(cctx, qry, keepBinary);
}

fqry.setPageSize(qry.getPageSize());
fqry.setDistributedJoins(qry.isDistributedJoins());
fqry.setPartitions(qry.getPartitions());
fqry.setLocal(qry.isLocal());