Examples of org.apache.derby.iapi.sql.dictionary.DataDictionary.startWriting()

Package org.apache.derby.iapi.sql.dictionary

Class org.apache.derby.iapi.sql.dictionary.DataDictionary

Examples of org.apache.derby.iapi.sql.dictionary.DataDictionary.startWriting()

org.apache.derby.iapi.sql.dictionary.DataDictionary.startWriting()
Inform this DataDictionary that we are about to start writing to it. This means using the various add and drop methods in the DataDictionary. Generally, this is done during execution of DDL. @param lcc The LanguageConnectionContext to use. @exception StandardException Thrown on error

    ** it seemed safer to do this whole operation in "write" mode.
    **
    ** We tell the data dictionary we're done writing at the end of
    ** the transaction.
    */
    dd.startWriting(lcc);


    /* Table gets locked in AlterTableConstantAction */


    /*
    ** If the schema descriptor is null, then

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        boolean inWrite = false;
        int retries = 0;
        while (true) {
            try {
                if (!inWrite) {
                    dd.startWriting(lcc);
                    inWrite = true;
                }
                dm.invalidateFor(
                        td, DependencyManager.UPDATE_STATISTICS, lcc);
                trace(1, "invalidation completed");

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      /*
      ** Inform the data dictionary we are going
      ** to perform some DDL
      */
      dd.startWriting(lcc);


      for (java.util.ListIterator li = dd.getAllSPSDescriptors().listIterator(); li.hasNext(); )
      {
        SPSDescriptor spsd = (SPSDescriptor) li.next();

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    ** it seemed safer to do this whole operation in "write" mode.
    **
    ** We tell the data dictionary we're done writing at the end of
    ** the transaction.
    */
    dd.startWriting(lcc);


        SchemaDescriptor sd = dd.getSchemaDescriptor(schemaName, null, true);


        sd.drop(lcc);

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    ** it seemed safer to do this whole operation in "write" mode.
    **
    ** We tell the data dictionary we're done writing at the end of
    ** the transaction.
    */
    dd.startWriting(lcc);


    // now do the real work


    // get an exclusive lock of the heap, to avoid deadlock on rows of
    // SYSCOLUMNS etc datadictionary tables and phantom table

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    DataDescriptorGenerator ddg = dd.getDataDescriptorGenerator();


    PermDescriptor permDesc = ddg.newPermDescriptor
            ( null, objectTypeName, objectID, _privilege, currentUser, null, false );


    dd.startWriting(lcc);
    for( Iterator itr = grantees.iterator(); itr.hasNext();)
    {
      // Keep track to see if any privileges are revoked by a revoke 
      // statement. If a privilege is not revoked, we need to raise a
      // warning.

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    ** it seemed safer to do this whole operation in "write" mode.
    **
    ** We tell the data dictionary we're done writing at the end of
    ** the transaction.
    */
    dd.startWriting(lcc);


    // now do the real work


    // get an exclusive lock of the heap, to avoid deadlock on rows of
    // SYSCOLUMNS etc datadictionary tables and phantom table

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    finally
    {
      heapCC.close();
    }


    dd.startWriting(lcc);


    dm.invalidateFor(td, DependencyManager.UPDATE_STATISTICS, lcc);


    for (int indexNumber = 0; indexNumber < conglomerateNumber.length;
       indexNumber++)

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    ** it seemed safer to do this whole operation in "write" mode.
    **
    ** We tell the data dictionary we're done writing at the end of
    ** the transaction.
    */
    dd.startWriting(lcc);


    td = dd.getTableDescriptor(tableId);


    if (td == null)
    {

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    ** it seemed safer to do this whole operation in "write" mode.
    **
    ** We tell the data dictionary we're done writing at the end of
    ** the transaction.
    */
    dd.startWriting(lcc);


    sd = dd.getSchemaDescriptor(schemaName, null, true);


    //If user is attempting to drop SESSION schema and there is no physical SESSION schema, then throw an exception
    //Need to handle it this special way is because SESSION schema is also used for temporary tables. If there is no

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