Java SQL ResultSet Read getNullDate(ResultSet result, String columnName)

Description

Reads date from result set.

License

Apache License

Declaration

public static Date getNullDate(ResultSet result, String columnName) throws SQLException 

Method Source Code

//package com.java2s;
/*-------------------------------------------------------------------------+
|                                                                          |
| Copyright 2005-2011 The ConQAT Project                                   |
|                                                                          |
| 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.                                           |
+-------------------------------------------------------------------------*/

import java.sql.ResultSet;
import java.sql.SQLException;

import java.util.Date;

public class Main {
    /** Value stored if date is null */
    private static final int NULL_VALUE = -1;

    /**/*ww  w  .j  a  v  a2  s.  c om*/
     * Reads date from result set. If no date is stored, <code>null</code> is
     * returned.
     */
    public static Date getNullDate(ResultSet result, String columnName) throws SQLException {
        long birthTime = result.getLong(columnName);
        if (birthTime == NULL_VALUE) {
            return null;
        }
        return new Date(birthTime);
    }
}

Related

1. getNullable(final ResultSet resultSet, final T value)
2. getNullableBooleanFromResultSet(ResultSet rset, Enum field)
3. getNullableByte(ResultSet resultSet, String columnLabel)
4. getNullableInt(ResultSet resultSet, String column, int fallback)
5. getNullableLong(ResultSet rs, String columnName)
6. getNumber(ResultSet rs, String name)
7. getNumberColumns(ResultSet rs)
8. getNumRows(ResultSet query)
9. getObject(ResultSet resultSet, int columnCount, Map columnLabelMap, String[] fields, String[] columnLabel, Class cls, Boolean flag)