Examples with MetaCollection com.torodb.core.transaction.metainf.MetaCollection used on opensource projects

Example 6 with MetaCollection

use of com.torodb.core.transaction.metainf.MetaCollection in project torodb by torodb.

the class SqlWriteTorodTransaction method delete.

@Override
public void delete(String dbName, String colName, Cursor<Integer> cursor) {
    MetaDatabase db = getInternalTransaction().getMetaSnapshot().getMetaDatabaseByName(dbName);
    if (db == null) {
        return;
    }
    MetaCollection col = db.getMetaCollectionByName(colName);
    if (col == null) {
        return;
    }
    getInternalTransaction().getBackendTransaction().deleteDids(db, col, cursor.getRemaining());
}

Example 7 with MetaCollection

use of com.torodb.core.transaction.metainf.MetaCollection in project torodb by torodb.

the class SharedWriteBackendTransactionImpl method dropDatabase.

@Override
public void dropDatabase(MetaDatabase db) {
    Preconditions.checkState(!isClosed(), "This transaction is closed");
    Iterator<? extends MetaCollection> metaCollectionIterator = db.streamMetaCollections().iterator();
    while (metaCollectionIterator.hasNext()) {
        MetaCollection metaCollection = metaCollectionIterator.next();
        dropMetaCollection(db, metaCollection);
    }
    getSqlInterface().getMetaDataWriteInterface().deleteMetaDatabase(getDsl(), db);
    getSqlInterface().getStructureInterface().dropDatabase(getDsl(), db);
}

Example 8 with MetaCollection

use of com.torodb.core.transaction.metainf.MetaCollection in project torodb by torodb.

the class AbstractStructureInterface method dropDatabase.

@Override
public void dropDatabase(DSLContext dsl, MetaDatabase metaDatabase) {
    Iterator<? extends MetaCollection> metaCollectionIterator = metaDatabase.streamMetaCollections().iterator();
    while (metaCollectionIterator.hasNext()) {
        MetaCollection metaCollection = metaCollectionIterator.next();
        Iterator<? extends MetaDocPart> metaDocPartIterator = metaCollection.streamContainedMetaDocParts().sorted(TableRefComparator.MetaDocPart.DESC).iterator();
        while (metaDocPartIterator.hasNext()) {
            MetaDocPart metaDocPart = metaDocPartIterator.next();
            String statement = getDropTableStatement(metaDatabase.getIdentifier(), metaDocPart.getIdentifier());
            sqlHelper.executeUpdate(dsl, statement, Context.DROP_TABLE);
        }
    }
    String statement = getDropSchemaStatement(metaDatabase.getIdentifier());
    sqlHelper.executeUpdate(dsl, statement, Context.DROP_SCHEMA);
}

Example 9 with MetaCollection

use of com.torodb.core.transaction.metainf.MetaCollection in project torodb by torodb.

the class AbstractMetaDataReadInterface method getIndexSize.

@Override
public Long getIndexSize(@Nonnull DSLContext dsl, @Nonnull MetaDatabase database, @Nonnull MetaCollection collection, @Nonnull String indexName) {
    long result = 0;
    MetaIndex index = collection.getMetaIndexByName(indexName);
    Iterator<TableRef> tableRefIterator = index.streamTableRefs().iterator();
    while (tableRefIterator.hasNext()) {
        TableRef tableRef = tableRefIterator.next();
        MetaDocPart docPart = collection.getMetaDocPartByTableRef(tableRef);
        Iterator<? extends MetaIdentifiedDocPartIndex> docPartIndexIterator = docPart.streamIndexes().iterator();
        while (docPartIndexIterator.hasNext()) {
            MetaIdentifiedDocPartIndex docPartIndex = docPartIndexIterator.next();
            if (index.isCompatible(docPart, docPartIndex)) {
                long relatedIndexCount = collection.streamContainedMetaIndexes().filter(i -> i.isCompatible(docPart, docPartIndex)).count();
                String statement = getReadIndexSizeStatement(database.getIdentifier(), docPart.getIdentifier(), docPartIndex.getIdentifier());
                result += sqlHelper.executeStatementWithResult(dsl, statement, Context.FETCH).get(0).into(Long.class) / relatedIndexCount;
            }
        }
    }
    return result;
}

Example 10 with MetaCollection

use of com.torodb.core.transaction.metainf.MetaCollection in project torodb by torodb.

the class SqlExclusiveWriteTorodTransaction method renameCollection.

@Override
public void renameCollection(String fromDb, String fromCollection, String toDb, String toCollection) throws RollbackException, UserException {
    MutableMetaDatabase fromMetaDb = getMetaDatabaseOrThrowException(fromDb);
    MetaCollection fromMetaColl = getMetaCollectionOrThrowException(fromMetaDb, fromCollection);
    MutableMetaDatabase toMetaDb = getOrCreateMetaDatabase(toDb);
    MutableMetaCollection toMetaColl = createMetaCollection(toMetaDb, toCollection);
    getInternalTransaction().getBackendTransaction().renameCollection(fromMetaDb, fromMetaColl, toMetaDb, toMetaColl);
    fromMetaDb.removeMetaCollectionByName(fromCollection);
}