Examples of org.apache.derby.iapi.store.raw.ContainerKey

org.apache.derby.iapi.store.raw.ContainerKey
A key that identifies a Container within the RawStore.
MT - Immutable

    long            containerId,
    boolean         hold)
     throws StandardException
  {


    ContainerKey identity = new ContainerKey(segmentId, containerId);


    StreamFileContainerHandle c;


    // open the container with the identity
    StreamFileContainer container = new StreamFileContainer(identity, this);

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    StreamContainerHandle containerHdl = null;


    try
    {
      ContainerKey ckey = new ContainerKey(segmentId, containerId);


      // close all open containers and 'onCommit' objects of the container
      t.notifyObservers(ckey);


      containerHdl = t.openStreamContainer(segmentId, containerId, false);

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  {
    if (SanityManager.DEBUG)
      SanityManager.ASSERT(segmentId != ContainerHandle.TEMPORARY_SEGMENT,
        "Cannot recreate temp container during load tran");


    ContainerKey identity = new ContainerKey(segmentId, containerId);


    // no need to lock container during load tran
    // no need to create any page for the container, they will be created
    // as their log records are encountered later in load tran

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          // a file in seg0 that we didn't expect.  Continue with the
          // next one.
          continue;
        }


        ContainerKey identity = new ContainerKey(segmentId, containerId);


        /* Not necessary to get the container thru the transaction.
         * Backup opens in container in read only mode , No need to 
         * transition the transaction to active state. 
         *

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    Set container's identity
    @exception StandardException Standard Derby error policy
  */
  public Cacheable setIdentity(Object key) throws StandardException {


    ContainerKey newIdentity = (ContainerKey) key;


    // if this is an open for a temp container then return an object of that type
    if (newIdentity.getSegmentId() == ContainerHandle.TEMPORARY_SEGMENT) {


      TempRAFContainer tmpContainer = new TempRAFContainer(dataFactory);
      return tmpContainer.setIdent(newIdentity);
    }

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  /**
    @exception StandardException Standard Derby error policy
   */
  public Cacheable createIdentity(Object key, Object createParameter) throws StandardException {


    ContainerKey newIdentity = (ContainerKey) key;


    if (newIdentity.getSegmentId() == ContainerHandle.TEMPORARY_SEGMENT) {
      TempRAFContainer tmpContainer = new TempRAFContainer(dataFactory);
      return tmpContainer.createIdent(newIdentity, createParameter);
    }


    return createIdent(newIdentity, createParameter);

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            throw StandardException.newException(
                    SQLState.HEAP_CANT_CREATE_CONTAINER);
        }


    // Keep track of what segment the container's in.
    id = new ContainerKey(segmentId, containerid);


    // Heap requires a template representing every column in the table.
        if ((template == null) || (template.length == 0))
        {
            throw StandardException.newException(

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     **/
    public void boot_create(
    long                    containerid,
    DataValueDescriptor[]   template)
    {
    id = new ContainerKey(0, containerid);
        this.format_ids = ConglomerateUtil.createFormatIds(template);
    }

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        conglom_format_id = FormatIdUtil.readFormatIdInteger(in);


    int segmentid = in.readInt();
        long containerid = in.readLong();


    id = new ContainerKey(segmentid, containerid);


        // read the number of columns in the heap.
        int num_columns = in.readInt();


        // read the array of format ids.

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      if (!(plainLock instanceof RecordHandle)) {
        // only interested in rows locks
        continue;
      }


      ContainerKey ckey = ((RecordHandle) plainLock).getContainerId();
      
      LockCount lc = (LockCount) containers.get(ckey);
      if (lc == null) {
        lc = new LockCount();
        containers.put(ckey, lc);
      }
      lc.count++;
    }


    // Determine the threshold for lock escalation
    // based upon our own limit, not the current count
    int threshold = limit / (containers.size() + 1);
    if (threshold < (limit / 4))
      threshold = limit / 4;


    // try to table lock all tables that are above
    // this threshold


    boolean didEscalate = false;
    for (Enumeration e = containers.keys(); e.hasMoreElements(); ) {
      ContainerKey ckey = (ContainerKey) e.nextElement();


      LockCount lc = (LockCount) containers.get(ckey);


      if (lc.count < threshold) {
        continue;

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