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Viewing changes to storage/ndb/clusterj/clusterj-tie/src/main/java/com/mysql/clusterj/tie/ScanOperationImpl.java

  • Committer: Package Import Robot
  • Author(s): James Page
  • Date: 2014-02-12 11:54:27 UTC
  • Revision ID: package-import@ubuntu.com-20140212115427-oq6tfsqxl1wuwehi
Tags: upstream-5.6.15
Import upstream version 5.6.15

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storage/ndb/clusterj/clusterj-tie/src/main/java/com/mysql/clusterj/tie/ScanOperationImpl.java
 
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/*
 
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 *  Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
 
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 *
 
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 *  This program is free software; you can redistribute it and/or modify
 
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 *  it under the terms of the GNU General Public License as published by
 
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 *  the Free Software Foundation; version 2 of the License.
 
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 *
 
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 *  This program is distributed in the hope that it will be useful,
 
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 *  GNU General Public License for more details.
 
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 *
 
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 *  You should have received a copy of the GNU General Public License
 
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 *  along with this program; if not, write to the Free Software
 
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
 
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 */
 
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package com.mysql.clusterj.tie;
 
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import com.mysql.ndbjtie.ndbapi.NdbErrorConst;
 
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import com.mysql.ndbjtie.ndbapi.NdbOperation;
 
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import com.mysql.ndbjtie.ndbapi.NdbScanFilter;
 
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import com.mysql.ndbjtie.ndbapi.NdbScanOperation;
 
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import com.mysql.clusterj.core.spi.QueryExecutionContext;
 
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import com.mysql.clusterj.core.store.ResultData;
 
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import com.mysql.clusterj.core.store.ScanFilter;
 
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import com.mysql.clusterj.core.store.ScanOperation;
 
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import com.mysql.clusterj.core.store.Table;
 
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/**
 
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 *
 
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 */
 
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class ScanOperationImpl extends OperationImpl implements ScanOperation {
 
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    private NdbScanOperation ndbScanOperation;
 
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    ScanOperationImpl(Table storeTable, NdbScanOperation operation,
 
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            ClusterTransactionImpl clusterTransaction) {
 
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        super(storeTable, operation, clusterTransaction);
 
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        this.ndbScanOperation = operation;
 
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    }
 
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    public void close() {
 
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        ndbScanOperation.close(true, true);
 
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    }
 
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    public void deleteCurrentTuple() {
 
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        int returnCode = ndbScanOperation.deleteCurrentTuple();
 
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        handleError(returnCode, ndbScanOperation);
 
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    }
 
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    public ScanFilter getScanFilter(QueryExecutionContext context) {
 
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        NdbScanFilter ndbScanFilter = NdbScanFilter.create(ndbScanOperation);
 
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        handleError(ndbScanFilter, ndbScanOperation);
 
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        ScanFilter scanFilter = new ScanFilterImpl(ndbScanFilter);
 
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        context.addFilter(scanFilter);
 
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        return scanFilter;
 
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    }
 
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    public int nextResult(boolean fetch) {
 
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        int result = ndbScanOperation.nextResult(fetch, false);
 
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        clusterTransaction.handleError(result);
 
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        return result;
 
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    }
 
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    @Override
 
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    public ResultData resultData() {
 
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        ResultData result = new ScanResultDataImpl(ndbScanOperation, storeColumns,
 
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                maximumColumnId, bufferSize, offsets, lengths, maximumColumnLength, bufferManager);
 
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        clusterTransaction.executeNoCommit(false, true);
 
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        return result;
 
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    }
 
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    @Override
 
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    protected void handleError(int returnCode, NdbOperation ndbOperation) {
 
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        if (returnCode == 0) {
 
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            return;
 
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        } else {
 
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            // first check if the error is reported in the NdbOperation
 
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            NdbErrorConst ndbError = ndbOperation.getNdbError();
 
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            if (ndbError != null) {
 
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                // the error is in NdbOperation
 
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                Utility.throwError(returnCode, ndbError);
 
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            } else {
 
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                // the error must be in the NdbTransaction
 
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                clusterTransaction.handleError(returnCode);
 
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            }
 
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        }
 
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    }
 
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}