com.softicar.platform.common.container.data.table.in.memory.InMemoryDataTableColumnSorter Maven / Gradle / Ivy

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The SoftiCAR Platform is a lightweight, Java-based library to create interactive business web applications.

There is a newer version: 50.0.0

package com.softicar.platform.common.container.data.table.in.memory;

import com.softicar.platform.common.container.comparator.OrderDirection;
import com.softicar.platform.common.container.data.table.IDataTableColumn;
import java.util.Comparator;

/**
 * Implementation of {@link IInMemoryDataTableSorter} for column-based sorting.
 *
 * @author Alexander Schmidt
 */
class InMemoryDataTableColumnSorter implements IInMemoryDataTableSorter {

	private final IDataTableColumn column;
	private final Comparator comparator;

	public InMemoryDataTableColumnSorter(IDataTableColumn column, OrderDirection direction) {

		this.column = column;
		this.comparator = new InMemoryDataTableColumnValueComparator<>(column, direction);
	}

	@Override
	public int compareRows(R leftRow, R rightRow) {

		return comparator.compare(column.getValue(leftRow), column.getValue(rightRow));
	}
}