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

        // role definition is a database owner power. This may change
        // in the future since this SQL is more liberal.
        //
        final String currentAuthId = lcc.getAuthorizationId();


        dd.startWriting(lcc);


        //
        // Check if this role already exists. If it does, throw.
        //
        RoleGrantDescriptor rdDef = dd.getRoleDefinitionDescriptor(roleName);

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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, activation);

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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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        DataDictionary dd = lcc.getDataDictionary();
        TransactionController tc = lcc.getTransactionExecute();


        final String grantor = lcc.getAuthorizationId();


        dd.startWriting(lcc);


        for (Iterator rIter = roleNames.iterator(); rIter.hasNext();) {
            String role = (String)rIter.next();


            if (role.equals(Authorizer.PUBLIC_AUTHORIZATION_ID)) {

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    **
    ** We tell the data dictionary we're done writing at the end of
    ** the transaction.
    */
    if ( tableType != TableDescriptor.GLOBAL_TEMPORARY_TABLE_TYPE )
      dd.startWriting(lcc);


    SchemaDescriptor sd;
    if (tableType == TableDescriptor.GLOBAL_TEMPORARY_TABLE_TYPE)
      sd = dd.getSchemaDescriptor(schemaName, tc, true);
    else

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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);

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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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                            stats[si].getColumnCount() + ")";
                    logAlways(td, null, msg);
                    trace(1, msg + " on table " + stats[si].getTableUUID());
                    DataDictionary dd = lcc.getDataDictionary();
                    if (!lcc.dataDictionaryInWriteMode()) {
                        dd.startWriting(lcc);
                    }
                    dd.dropStatisticsDescriptors(
                            td.getUUID(), stats[si].getReferenceID(), tc); 
                    if (asBackgroundTask) {
                        lcc.internalCommit(true);

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