Examples of org.apache.derby.iapi.store.access.conglomerate.Conglomerate

Package org.apache.derby.iapi.store.access.conglomerate

Examples of org.apache.derby.iapi.store.access.conglomerate.Conglomerate

org.apache.derby.iapi.store.access.conglomerate.Conglomerate
A conglomerate is an abstract storage structure (they correspond to access methods). The Conglomerate interface corresponds to a single instance of a conglomerate. In other words, for each conglomerate in the system, there will be one object implementing Conglomerate.
The Conglomerate interface is implemented by each access method. The implementation must maintain enough information to properly open the conglomerate and scans, and to drop the conglomerate. This information typically will include the id of the container or containers in which the conglomerate is stored, and my also include property information.
Conglomerates are created by a conglomerate factory. The access manager stores them in a directory (which is why they implement Storable).

  }


    public void dropConglomerate(long conglomId)
    throws StandardException
  {
    Conglomerate conglom = findExistingConglomerate(conglomId);


    conglom.drop(this);


    if (conglomId < 0)
    {
      if (tempCongloms != null)
        tempCongloms.remove(new Long(conglomId));

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    FormatableBitSet                 scanColumnList,
    DataValueDescriptor[]   fetchRow)
        throws StandardException
    {
    // Find the conglomerate.
    Conglomerate conglom = findExistingConglomerate(conglomId);


    // Get a scan controller.
        return(
            conglom.fetchMaxOnBTree(
                this, 
                rawtran,
                conglomId,
                open_mode,
                lock_level,

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    boolean                 createConglom,
    RowLocationRetRowSource rowSource)
    throws StandardException
  {
    // Find the conglomerate.
    Conglomerate conglom = findExistingConglomerate(conglomId);


    // Load up the conglomerate with rows from the rowSource.
    // Don't need to keep track of the conglomerate controller because load
    // automatically closes it when it finished.
    return(conglom.load(this, createConglom, rowSource));
  }

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        SanityManager.THROWASSERT(
                "Bad lock level to openScan:" + lock_level);
        }


    // Find the conglomerate.
    Conglomerate conglom = findExistingConglomerate(conglomId);


    // Get a scan controller.
    ScanManager sm = 
            conglom.openScan(
                this, rawtran, hold, open_mode, 
                determine_lock_level(lock_level),
                determine_locking_policy(lock_level, isolation_level),
                isolation_level,
                scanColumnList,

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        SanityManager.THROWASSERT(
                "Bad lock level to openScan:" + lock_level);
        }


    // Find the conglomerate.
    Conglomerate conglom = findExistingConglomerate(conglomId);


    // Get a scan controller.
    ScanManager sm = 
            conglom.defragmentConglomerate(
                this, 
                rawtran, 
                hold, 
                open_mode, 
                determine_lock_level(lock_level),

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    public StoreCostController openStoreCost(
    long        conglomId)
    throws StandardException
    {
    // Find the conglomerate.
    Conglomerate conglom = findExistingConglomerate(conglomId);


    // Get a scan controller.
    StoreCostController scc = conglom.openStoreCost(this, rawtran);


    return(scc);
    }

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    /* package */ Conglomerate conglomCacheFind(
    TransactionManager  xact_mgr,
    long                conglomid)
        throws StandardException
    {
        Conglomerate conglom       = null;
        Long         conglomid_obj = new Long(conglomid);


        CacheableConglomerate cache_entry =
            (CacheableConglomerate) conglom_cache.find(conglomid_obj);

View Full Code Here

    }


  private Conglomerate findExistingConglomerate(long conglomId)
    throws StandardException
  {
    Conglomerate conglom = findConglomerate(conglomId);


    if (conglom == null)
        {
      throw StandardException.newException(
                SQLState.STORE_CONGLOMERATE_DOES_NOT_EXIST,

View Full Code Here

  }


  private Conglomerate findConglomerate(long conglomId)
    throws StandardException
  {
    Conglomerate conglom = null;


    if (conglomId >= 0)
        {
            conglom = accessmanager.conglomCacheFind(this, conglomId);
        }

View Full Code Here

    int         collation_id)
    throws StandardException
    {
        boolean is_temporary = (conglomId < 0);


    Conglomerate conglom = findConglomerate(conglomId);
    if (conglom == null)
        {
      throw StandardException.newException(
                SQLState.AM_NO_SUCH_CONGLOMERATE_DROP, new Long(conglomId));
        }


        // Get exclusive lock on the table being altered.
    ConglomerateController cc =
            conglom.open(
                this, rawtran, false, OPENMODE_FORUPDATE,
                MODE_TABLE,
                accessmanager.table_level_policy[
                    TransactionController.ISOLATION_SERIALIZABLE],
                (StaticCompiledOpenConglomInfo) null,
                (DynamicCompiledOpenConglomInfo) null);


    conglom.addColumn(this, column_id, template_column, collation_id);


        // Set an indication that ALTER TABLE has been called so that the
        // conglomerate will be invalidated if an error happens. Only needed
        // for non-temporary conglomerates, since they are the only ones that
        // live in the conglomerate cache.

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Related Classes of org.apache.derby.iapi.store.access.conglomerate.Conglomerate

org.apache.derby.impl.store.access.btree.index.B2IFactory

org.apache.derby.impl.store.access.RAMAccessManager

org.apache.derby.impl.store.access.RAMTransaction

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