Examples with DBWriter org.knime.core.node.port.database.writer.DBWriter used on opensource projects

Example 1 with DBWriter

use of org.knime.core.node.port.database.writer.DBWriter in project knime-core by knime.

the class DBDeleteRowsNodeModel method execute.

/**
 * {@inheritDoc}
 */
@Override
protected PortObject[] execute(final PortObject[] inData, final ExecutionContext exec) throws Exception {
    final BufferedDataTable inTable = (BufferedDataTable) inData[0];
    final DataTableSpec inSpec = inTable.getSpec();
    final String[] whereIncludes = m_configWHERE.applyTo(inSpec).getIncludes();
    DatabaseConnectionSettings connSettings;
    if ((inData.length > 1) && (inData[1] instanceof DatabaseConnectionPortObject)) {
        connSettings = ((DatabaseConnectionPortObject) inData[1]).getConnectionSettings(getCredentialsProvider());
    } else {
        connSettings = m_loginConfig;
    }
    // DELETE rows
    final int[] deleteStatus = new int[inTable.getRowCount()];
    final DBWriter dbWriter = connSettings.getUtility().getWriter(connSettings);
    final String errMsg = dbWriter.deleteRows(null, m_tableName, inTable, whereIncludes, deleteStatus, exec, getCredentialsProvider(), m_batchSize);
    // set warning message generated during deleting rows
    if (errMsg != null) {
        setWarningMessage(errMsg);
    }
    // create out table with update column
    final ColumnRearranger colre = createColumnRearranger(inTable.getSpec(), deleteStatus);
    final BufferedDataTable outTable = exec.createColumnRearrangeTable(inTable, colre, exec.createSubProgress(1.0));
    return new BufferedDataTable[] { outTable };
}

Example 2 with DBWriter

use of org.knime.core.node.port.database.writer.DBWriter in project knime-core by knime.

the class DBWriterNodeModel method execute.

/**
 * {@inheritDoc}
 */
@Override
protected PortObject[] execute(final PortObject[] inData, final ExecutionContext exec) throws CanceledExecutionException, Exception {
    exec.setProgress("Opening database connection to write data...");
    DatabaseConnectionSettings connSettings;
    if ((inData.length > 1) && (inData[1] instanceof DatabaseConnectionPortObject)) {
        connSettings = ((DatabaseConnectionPortObject) inData[1]).getConnectionSettings(getCredentialsProvider());
    } else {
        connSettings = m_conn;
    }
    DBWriter writer = connSettings.getUtility().getWriter(connSettings);
    BufferedDataTable inputTable = (BufferedDataTable) inData[0];
    DataTableRowInput rowInput = new DataTableRowInput(inputTable);
    // write entire data
    final String error = writer.writeData(m_tableName, rowInput, inputTable.size(), m_append, exec, m_types, getCredentialsProvider(), m_batchSize, m_insertNullForMissingCols, m_failOnError);
    // set error message generated during writing rows
    if (error != null) {
        super.setWarningMessage(error);
    }
    return new BufferedDataTable[0];
}

Example 3 with DBWriter

use of org.knime.core.node.port.database.writer.DBWriter in project knime-core by knime.

the class DBWriterNodeModel method createStreamableOperator.

/**
 * {@inheritDoc}
 */
@Override
public StreamableOperator createStreamableOperator(final PartitionInfo partitionInfo, final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    return new StreamableOperator() {

        @Override
        public void runFinal(final PortInput[] inputs, final PortOutput[] outputs, final ExecutionContext exec) throws Exception {
            exec.setProgress("Opening database connection to write data...");
            DatabaseConnectionSettings connSettings;
            PortObject portObj = ((PortObjectInput) inputs[1]).getPortObject();
            if (portObj != null && (portObj instanceof DatabaseConnectionPortObject)) {
                connSettings = ((DatabaseConnectionPortObject) portObj).getConnectionSettings(getCredentialsProvider());
            } else {
                connSettings = m_conn;
            }
            DBWriter writer = connSettings.getUtility().getWriter(connSettings);
            // write entire data
            m_errorMessage = writer.writeData(m_tableName, (RowInput) inputs[0], -1, m_append, exec, m_types, getCredentialsProvider(), m_batchSize, m_insertNullForMissingCols);
        }
    };
}

Example 4 with DBWriter

use of org.knime.core.node.port.database.writer.DBWriter in project knime-core by knime.

the class DBUpdateNodeModel method execute.

/**
 * {@inheritDoc}
 */
@Override
protected PortObject[] execute(final PortObject[] inData, final ExecutionContext exec) throws Exception {
    final BufferedDataTable inTable = (BufferedDataTable) inData[0];
    final DataTableSpec inSpec = inTable.getSpec();
    final String[] setIncludes = m_configSET.applyTo(inSpec).getIncludes();
    final String[] whereIncludes = m_configWHERE.applyTo(inSpec).getIncludes();
    DatabaseConnectionSettings connSettings;
    if ((inData.length > 1) && (inData[1] instanceof DatabaseConnectionPortObject)) {
        connSettings = ((DatabaseConnectionPortObject) inData[1]).getConnectionSettings(getCredentialsProvider());
    } else {
        connSettings = m_loginConfig;
    }
    // UPDATE table
    final int[] updateStatus = new int[inTable.getRowCount()];
    final DBWriter dbWriter = connSettings.getUtility().getWriter(connSettings);
    final String errMsg = dbWriter.updateTable(null, m_tableName, inTable, setIncludes, whereIncludes, updateStatus, exec, getCredentialsProvider(), m_batchSize);
    // set warning message generated during updating rows
    if (errMsg != null) {
        setWarningMessage(errMsg);
    }
    // create out table with update column
    final ColumnRearranger colre = createColumnRearranger(inTable.getSpec(), updateStatus);
    final BufferedDataTable outTable = exec.createColumnRearrangeTable(inTable, colre, exec.createSubProgress(1.0));
    return new BufferedDataTable[] { outTable };
}