J4SResultSetMetaData.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.xenei.jdbc4sparql;

import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;

import org.xenei.jdbc4sparql.iface.Column;
import org.xenei.jdbc4sparql.iface.Table;
import org.xenei.jdbc4sparql.iface.TypeConverter;

public class J4SResultSetMetaData implements ResultSetMetaData {
	private final Table table;

	public J4SResultSetMetaData(final Table table) {
		this.table = table;
	}

	@Override
	public String getCatalogName(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getName().getShortName();
	}

	private Column getColumn(final int columnOrdinal) {
		return table.getColumn(columnOrdinal - 1);
	}

	@Override
	public String getColumnClassName(final int columnOrdinal)
			throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().getColumnClassName();
	}

	@Override
	public int getColumnCount() throws SQLException {
		return table.getColumnCount();
	}

	@Override
	public int getColumnDisplaySize(final int columnOrdinal)
			throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().getDisplaySize();
	}

	@Override
	public String getColumnLabel(final int columnOrdinal) throws SQLException {
		return getColumnName(columnOrdinal);
	}

	@Override
	public String getColumnName(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getName().getShortName();
	}

	@Override
	public int getColumnType(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().getType();
	}

	@Override
	public String getColumnTypeName(final int columnOrdinal)
			throws SQLException {
		final Class<?> typeClass = TypeConverter
				.getJavaType(getColumnType(columnOrdinal));
		return typeClass == null ? "UNKNOWN" : typeClass.getName();
	}

	@Override
	public int getPrecision(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().getPrecision();
	}

	@Override
	public int getScale(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().getScale();
	}

	@Override
	public String getSchemaName(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getSchema().getName().getShortName();
	}

	@Override
	public String getTableName(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getTable().getName().getShortName();
	}

	@Override
	public boolean isAutoIncrement(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().isAutoIncrement();
	}

	@Override
	public boolean isCaseSensitive(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().isCaseSensitive();
	}

	@Override
	public boolean isCurrency(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().isCurrency();
	}

	@Override
	public boolean isDefinitelyWritable(final int columnOrdinal)
			throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().isDefinitelyWritable();
	}

	@Override
	public int isNullable(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().getNullable();
	}

	@Override
	public boolean isReadOnly(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().isReadOnly();
	}

	@Override
	public boolean isSearchable(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().isSearchable();
	}

	@Override
	public boolean isSigned(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().isSigned();
	}

	@Override
	public boolean isWrapperFor(final Class<?> iface) throws SQLException {
		return false;
	}

	@Override
	public boolean isWritable(final int columnOrdinal) throws SQLException {
		return getColumn(columnOrdinal).getColumnDef().isWritable();
	}

	@Override
	public <T> T unwrap(final Class<T> iface) throws SQLException {
		throw new SQLFeatureNotSupportedException();
	}

}