org.datacleaner.metadata.ColumnGroupMetadataImpl Maven / Gradle / Ivy

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/**
 * DataCleaner (community edition)
 * Copyright (C) 2014 Free Software Foundation, Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.datacleaner.metadata;

import java.util.Collection;
import java.util.List;

import org.apache.metamodel.schema.Column;

import com.google.common.collect.ImmutableList;

/**
 * Default (immutable) implementation of {@link ColumnGroupMetadata}.
 */
public final class ColumnGroupMetadataImpl extends AbstractHasMetadataAnnotations implements ColumnGroupMetadata {

    private final String _columnGroupName;
    private final ImmutableList _columnMetadata;

    public ColumnGroupMetadataImpl(final String columnGroupName,
            final Collection columnMetadata,
            final Collection annotations) {
        super(annotations);
        _columnGroupName = columnGroupName;
        _columnMetadata = ImmutableList.copyOf(columnMetadata);
    }

    @Override
    public String getName() {
        return _columnGroupName;
    }

    @Override
    public ColumnMetadata getColumnMetadataByName(final String columnName) {
        return getByName(columnName, _columnMetadata);
    }

    @Override
    public ColumnMetadata getColumnMetadata(final Column column) {
        if (column == null) {
            return null;
        }
        final String columnName = column.getName();
        return getColumnMetadataByName(columnName);
    }

    @Override
    public List getColumnMetadata() {
        return _columnMetadata;
    }

}