org.pentaho.di.trans.dataservice.jdbc.RowsResultSet.java Source code

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Here is the source code for org.pentaho.di.trans.dataservice.jdbc.RowsResultSet.java

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/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2015 by Pentaho : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * Licensed 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.pentaho.di.trans.dataservice.jdbc;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.Range;
import org.pentaho.di.core.row.RowMetaInterface;

import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.List;

public class RowsResultSet extends BaseResultSet implements ResultSet {
    private ImmutableList<Object[]> rows;

    public RowsResultSet(RowMetaInterface rowMeta, List<Object[]> rows) {
        super(rowMeta);
        this.rows = ImmutableList.copyOf(rows);
    }

    @Override
    protected Object[] retrieveRow(int i) throws Exception {
        return Range.openClosed(0, rows.size()).contains(i) ? rows.get(i - 1) : null;
    }

    @Override
    public int size() throws SQLException {
        return rows.size();
    }

    @Override
    public void close() throws SQLException {
        rows = null;
    }

    @Override
    public boolean isClosed() throws SQLException {
        return rows == null;
    }

    @Override
    public String getCursorName() throws SQLException {
        return "rows";
    }

    @Override
    public int getFetchDirection() throws SQLException {
        return ResultSet.FETCH_UNKNOWN;
    }

    @Override
    public int getFetchSize() throws SQLException {
        return 0;
    }

    @Override
    public int getHoldability() throws SQLException {
        return ResultSet.HOLD_CURSORS_OVER_COMMIT;
    }

    @Override
    public ResultSetMetaData getMetaData() throws SQLException {
        return new ThinResultSetMetaData("rows", getRowMeta());
    }

    @Override
    public int getType() throws SQLException {
        return ResultSet.TYPE_SCROLL_INSENSITIVE;
    }

    @Override
    public void setFetchDirection(int direction) throws SQLException {
    }

    @Override
    public void setFetchSize(int rows) throws SQLException {
    }
}