Package org.voltdb.catalog

Examples of org.voltdb.catalog.CatalogDiffEngine$Filter

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    List<Filter> keyFilters = new ArrayList<Filter>();
    if (query.hasFilter()) {
      keyFilters.add(query.getFilter());
    }
    if (lastKey != null) {
      Filter lowerBound = DatastoreHelper.makeFilter(DatastoreHelper.KEY_PROPERTY_NAME,
          PropertyFilter.Operator.GREATER_THAN_OR_EQUAL,
          DatastoreHelper.makeValue(lastKey)).build();
      keyFilters.add(lowerBound);
    }
    if (nextKey != null) {
      Filter upperBound = DatastoreHelper.makeFilter(DatastoreHelper.KEY_PROPERTY_NAME,
          PropertyFilter.Operator.LESS_THAN,
          DatastoreHelper.makeValue(nextKey)).build();
      keyFilters.add(upperBound);
    }
    return Query.newBuilder(query).setFilter(makeFilter(keyFilters)).build();
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            // verified when / if the update procedure runs in order to verify
            // catalogs only move forward
            retval.expectedCatalogVersion = context.catalog.getCatalogVersion();

            // compute the diff in StringBuilder
            CatalogDiffEngine diff = new CatalogDiffEngine(context.catalog, newCatalog);
            if (!diff.supported()) {
                throw new Exception("The requested catalog change is not a supported change at this time. " + diff.errors());
            }

            // since diff commands can be stupidly big, compress them here
            retval.encodedDiffCommands = Encoder.compressAndBase64Encode(diff.commands());
            // check if the resulting string is small enough to fit in our parameter sets (about 2mb)
            if (retval.encodedDiffCommands.length() > (2 * 1000 * 1000)) {
                throw new Exception("The requested catalog change is too large for this version of VoltDB. " +
                                    "Try a series of smaller updates.");
            }
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            // verified when / if the update procedure runs in order to verify
            // catalogs only move forward
            retval.expectedCatalogVersion = context.catalogVersion;

            // compute the diff in StringBuilder
            CatalogDiffEngine diff = new CatalogDiffEngine(context.catalog, newCatalog);
            if (!diff.supported()) {
                retval.errorMsg = "The requested catalog change(s) are not supported:\n" + diff.errors();
                return retval;
            }

            // since diff commands can be stupidly big, compress them here
            retval.encodedDiffCommands = Encoder.compressAndBase64Encode(diff.commands());
            retval.tablesThatMustBeEmpty = diff.tablesThatMustBeEmpty();
            retval.reasonsForEmptyTables = diff.reasonsWhyTablesMustBeEmpty();
            retval.requiresSnapshotIsolation = diff.requiresSnapshotIsolation();
            retval.worksWithElastic = diff.worksWithElastic();
        }
        catch (Exception e) {
            String msg = "Unexpected error in adhoc or catalog update: " + e.getClass() + ", " +
                e.getMessage();
            compilerLog.warn(msg, e);
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