Examples with ColumnAggregator org.knime.base.data.aggregation.ColumnAggregator used on opensource projects

Example 31 with ColumnAggregator

use of org.knime.base.data.aggregation.ColumnAggregator in project knime-core by knime.

the class GroupByNodeModel method reset.

/**
 * {@inheritDoc}
 */
@Override
protected void reset() {
    m_hilite.setMapper(null);
    for (final ColumnAggregator colAggr : m_columnAggregators) {
        colAggr.reset();
    }
    m_columnAggregators2Use.clear();
}

Example 32 with ColumnAggregator

use of org.knime.base.data.aggregation.ColumnAggregator in project knime-core by knime.

the class NumericOutliersIntervalsCalculator method getGroupByTable.

/**
 * Constructs the group by table in accordance with the given settings.
 *
 * @param inTable the input data table
 * @param exec the execution context
 * @return the group by table w.r.t. the selected settings
 * @throws CanceledExecutionException if the user has canceled the execution
 */
private GroupByTable getGroupByTable(final BufferedDataTable inTable, final ExecutionContext exec) throws CanceledExecutionException {
    // get the global settings
    final GlobalSettings gSettings = getGlobalSettings(inTable);
    // create the column aggregators
    final ColumnAggregator[] agg = getAggretators(inTable.getDataTableSpec(), gSettings);
    // init and return the GroupByTable obeying the chosen memory settings
    final GroupByTable t;
    if (m_inMemory) {
        t = new MemoryGroupByTable(exec, inTable, Arrays.stream(m_groupColNames).collect(Collectors.toList()), agg, gSettings, false, COLUMN_NAME_POLICY, false);
    } else {
        t = new BigGroupByTable(exec, inTable, Arrays.stream(m_groupColNames).collect(Collectors.toList()), agg, gSettings, false, COLUMN_NAME_POLICY, false);
    }
    return t;
}

Example 33 with ColumnAggregator

use of org.knime.base.data.aggregation.ColumnAggregator in project knime-core by knime.

the class MovingAggregationNodeModel method validateSettings.

/**
 * {@inheritDoc}
 */
@Override
protected void validateSettings(final NodeSettingsRO settings) throws InvalidSettingsException {
    m_winLength.validateSettings(settings);
    m_windowType.validateSettings(settings);
    m_cumulativeComputing.validateSettings(settings);
    m_handleMissings.validateSettings(settings);
    m_removeRetainedCols.validateSettings(settings);
    m_maxUniqueVals.validateSettings(settings);
    m_valueDelimiter.validateSettings(settings);
    final List<ColumnAggregator> aggregators = ColumnAggregator.loadColumnAggregators(settings);
    final List<DataTypeAggregator> typeAggregators = new LinkedList<>();
    final List<PatternAggregator> regexAggregators = new LinkedList<>();
    try {
        regexAggregators.addAll(PatternAggregator.loadAggregators(settings, CFG_PATTERN_AGGREGATORS));
        typeAggregators.addAll(DataTypeAggregator.loadAggregators(settings, CFG_DATA_TYPE_AGGREGATORS));
    } catch (InvalidSettingsException e) {
    // introduced in 2.11
    }
    if (aggregators.isEmpty() && regexAggregators.isEmpty() && typeAggregators.isEmpty()) {
        throw new IllegalArgumentException("Please select at least one aggregation option");
    }
    final String policyLabel = ((SettingsModelString) m_columnNamePolicy.createCloneWithValidatedValue(settings)).getStringValue();
    final ColumnNamePolicy namePolicy = ColumnNamePolicy.getPolicy4Label(policyLabel);
    try {
        GroupByNodeModel.checkDuplicateAggregators(namePolicy, aggregators);
    } catch (IllegalArgumentException e) {
        throw new InvalidSettingsException(e.getMessage());
    }
    final boolean removeAggrCols = ((SettingsModelBoolean) m_removeAggregationCols.createCloneWithValidatedValue(settings)).getBooleanValue();
    if (ColumnNamePolicy.KEEP_ORIGINAL_NAME.equals(namePolicy) && !removeAggrCols) {
        throw new InvalidSettingsException("'" + ColumnNamePolicy.KEEP_ORIGINAL_NAME.getLabel() + "' option only valid if aggregation columns are filtered");
    }
}