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);


    // now do the real work


    // get an exclusive lock of the heap, to avoid deadlock on rows of
    // SYSCOLUMNS etc datadictionary tables (track 879) and phantom table

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      /*
      ** Indicate that we are going to write the data
      ** dictionary.  We have probably already done this
      ** but it is ok to call startWriting more than once.
      */
      dd.startWriting(lcc);


      dm = dd.getDependencyManager();
      /*
      ** Clear out all the dependencies that exist
      ** before we recreate them so we don't grow

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    /*
    ** Get busy time
    */
    dd.startWriting(lcc);  


    if (tc == null) { //bug 4821 - tc will passed null if we want to use the user transaction
      tc = lcc.getTransactionExecute();
      wait = true;
    }

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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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    DataDescriptorGenerator ddg = dd.getDataDescriptorGenerator();


    RoutinePermsDescriptor routinePermsDesc = ddg.newRoutinePermsDescriptor( aliasDescriptor, currentUser);


    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);


    
    SchemaDescriptor sd = null;
    if (activation == null)
      sd = dd.getSysIBMSchemaDescriptor();

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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 = ddg.newSchemaDescriptor(schemaName,
                  thisAid,
                  tmpSchemaId);

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    ** Indicate that we are about to modify the data dictionary.
    ** 
    ** We tell the data dictionary we're done writing at the end of
    ** the transaction.
    */
    dd.startWriting(lcc);


    SchemaDescriptor triggerSd = getSchemaDescriptorForCreate(dd, activation, triggerSchemaName);


    if (spsCompSchemaId == null) {
      SchemaDescriptor def = lcc.getDefaultSchema();

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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 = DDLConstantAction.getSchemaDescriptorForCreate(dd, activation, schemaName);


    /* Create a new table descriptor.
     * (Pass in row locking, even though meaningless for views.)

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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);


    /* Get the table descriptor. */
    td = dd.getTableDescriptor(tableId);


    if (td == null)

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