Example usage for java.sql Types DATE

List of usage examples for java.sql Types DATE

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Introduction

In this page you can find the example usage for java.sql Types DATE.

Prototype

int DATE

To view the source code for java.sql Types DATE.

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Document

The constant in the Java programming language, sometimes referred to as a type code, that identifies the generic SQL type DATE.

Usage

From source file:lasige.steeldb.jdbc.BFTRowSet.java

/**
 * Indicates whether the given SQL data type is a temporal type.
 * This method is called internally by the conversion methods
 * <code>convertNumeric</code> and <code>convertTemporal</code>.
 *
 * @param type one of the constants from <code>java.sql.Types</code>
 * @return <code>true</code> if the given type is <code>DATE</code>,
 *         <code>TIME</code>, or <code>TIMESTAMP</code>;
 *         <code>false</code> otherwise
 *//*from   w  w w  . j  a  va2  s.com*/
private boolean isTemporal(int type) {
    switch (type) {
    case java.sql.Types.DATE:
    case java.sql.Types.TIME:
    case java.sql.Types.TIMESTAMP:
        return true;
    default:
        return false;
    }
}

From source file:lasige.steeldb.jdbc.BFTRowSet.java

/**
 * Converts the given <code>Object</code> in the Java programming language
 * to the standard object mapping for the specified SQL target data type.
 * The conversion must be to a string or temporal type, and there are also
 * restrictions on the type to be converted.
 * <P>//from   www.  jav  a2  s  . com
 * <TABLE ALIGN="CENTER" BORDER CELLPADDING=10 BORDERCOLOR="#0000FF"
 * <CAPTION ALIGN="CENTER"><B>Parameters and Return Values</B></CAPTION>
 * <TR>
 *   <TD><B>Source SQL Type</B>
 *   <TD><B>Target SQL Type</B>
 *   <TD><B>Object Returned</B>
 * </TR>
 * <TR>
 *   <TD><code>TIMESTAMP</code>
 *   <TD><code>DATE</code>
 *   <TD><code>java.sql.Date</code>
 * </TR>
 * <TR>
 *   <TD><code>TIMESTAMP</code>
 *   <TD><code>TIME</code>
 *   <TD><code>java.sql.Time</code>
 * </TR>
 * <TR>
 *   <TD><code>TIME</code>
 *   <TD><code>TIMESTAMP</code>
 *   <TD><code>java.sql.Timestamp</code>
 * </TR>
 * <TR>
 *   <TD><code>DATE</code>, <code>TIME</code>, or <code>TIMESTAMP</code>
 *   <TD><code>CHAR</code>, <code>VARCHAR</code>, or <code>LONGVARCHAR</code>
 *   <TD><code>java.lang.String</code>
 * </TR>
 * </TABLE>
 * <P>
 * If the source type and target type are the same,
 * the given object is simply returned.
 *
 * @param srcObj the <code>Object</code> in the Java programming language
 *               that is to be converted to the target type
 * @param srcType the data type that is the standard mapping in SQL of the
 *                object to be converted; must be one of the constants in
 *                <code>java.sql.Types</code>
 * @param trgType the SQL data type to which to convert the given object;
 *                must be one of the following constants in
 *                <code>java.sql.Types</code>: <code>DATE</code>,
 *         <code>TIME</code>, <code>TIMESTAMP</code>, <code>CHAR</code>,
 *         <code>VARCHAR</code>, or <code>LONGVARCHAR</code>
 * @return an <code>Object</code> value.that is
 *         the standard object mapping for the target SQL type
 * @throws SQLException if the given target type is not one of the string or
 *         temporal types in <code>java.sql.Types</code>
 */
private Object convertTemporal(Object srcObj, int srcType, int trgType) throws SQLException {

    if (srcType == trgType) {
        return srcObj;
    }

    if (isNumeric(trgType) == true || (isString(trgType) == false && isTemporal(trgType) == false)) {
        throw new SQLException(resBundle.handleGetObject("cachedrowsetimpl.dtypemismt").toString());
    }

    try {
        switch (trgType) {
        case java.sql.Types.DATE:
            if (srcType == java.sql.Types.TIMESTAMP) {
                return new java.sql.Date(((java.sql.Timestamp) srcObj).getTime());
            } else {
                throw new SQLException(resBundle.handleGetObject("cachedrowsetimpl.dtypemismt").toString());
            }
        case java.sql.Types.TIMESTAMP:
            if (srcType == java.sql.Types.TIME) {
                return new Timestamp(((java.sql.Time) srcObj).getTime());
            } else {
                return new Timestamp(((java.sql.Date) srcObj).getTime());
            }
        case java.sql.Types.TIME:
            if (srcType == java.sql.Types.TIMESTAMP) {
                return new Time(((java.sql.Timestamp) srcObj).getTime());
            } else {
                throw new SQLException(resBundle.handleGetObject("cachedrowsetimpl.dtypemismt").toString());
            }
        case java.sql.Types.CHAR:
        case java.sql.Types.VARCHAR:
        case java.sql.Types.LONGVARCHAR:
            return new String(srcObj.toString());
        default:
            throw new SQLException(resBundle.handleGetObject("cachedrowsetimpl.dtypemismt").toString());
        }
    } catch (NumberFormatException ex) {
        throw new SQLException(resBundle.handleGetObject("cachedrowsetimpl.dtypemismt").toString());
    }

}

From source file:lasige.steeldb.jdbc.BFTRowSet.java

/**
 * Sets the designated column in either the current row or the insert
 * row of this <code>CachedRowSetImpl</code> object with the given
 * <code>Date</code> object.
 *
 * This method updates a column value in either the current row or
 * the insert row of this rowset, but it does not update the
 * database.  If the cursor is on a row in the rowset, the
 * method {@link #updateRow} must be called to update the database.
 * If the cursor is on the insert row, the method {@link #insertRow}
 * must be called, which will insert the new row into both this rowset
 * and the database. Both of these methods must be called before the
 * cursor moves to another row./*from  ww  w  . ja v a 2  s. c o  m*/
 *
 * @param columnIndex the first column is <code>1</code>, the second
 *        is <code>2</code>, and so on; must be <code>1</code> or larger
 *        and equal to or less than the number of columns in this rowset
 * @param x the new column value
 * @throws SQLException if (1) the given column index is out of bounds,
 *            (2) the cursor is not on one of this rowset's rows or its
 *            insert row, (3) the type of the designated column is not
 *            an SQL <code>DATE</code> or <code>TIMESTAMP</code>, or
 *            (4) this rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
 */
public void updateDate(int columnIndex, java.sql.Date x) throws SQLException {
    // sanity check.
    checkIndex(columnIndex);
    // make sure the cursor is on a valid row
    checkCursor();

    Object obj = convertTemporal(x, java.sql.Types.DATE, RowSetMD.getColumnType(columnIndex));

    getCurrentRow().setColumnObject(columnIndex, obj);
}

From source file:lasige.steeldb.jdbc.BFTRowSet.java

/**
 * Retrieves the value of the designated column in the current row
 * of this <code>CachedRowSetImpl</code> object as a <code>java.sql.Date</code>
 * object, using the given <code>Calendar</code> object to construct an
 * appropriate millisecond value for the date.
 *
 * @param columnIndex the first column is <code>1</code>, the second
 *        is <code>2</code>, and so on; must be <code>1</code> or larger
 *        and equal to or less than the number of columns in the rowset
 * @param cal the <code>java.util.Calendar</code> object to use in
 *            constructing the date/*  ww  w . j av  a2  s . c  om*/
 * @return the column value; if the value is SQL <code>NULL</code>,
 *         the result is <code>null</code>
 * @throws SQLException if (1) the given column name is not the name of
 *            a column in this rowset, (2) the cursor is not on one of
 *            this rowset's rows or its insert row, or (3) the designated
 *            column does not store an SQL <code>DATE</code> or
 *            <code>TIMESTAMP</code> value
 */
public java.sql.Date getDate(int columnIndex, Calendar cal) throws SQLException {
    Object value;

    // sanity check.
    checkIndex(columnIndex);
    // make sure the cursor is on a valid row
    checkCursor();

    setLastValueNull(false);
    value = getCurrentRow().getColumnObject(columnIndex);

    // check for SQL NULL
    if (value == null) {
        setLastValueNull(true);
        return null;
    }

    value = convertTemporal(value, RowSetMD.getColumnType(columnIndex), java.sql.Types.DATE);

    // create a default calendar
    Calendar defaultCal = Calendar.getInstance();
    // set this Calendar to the time we have
    defaultCal.setTime((java.util.Date) value);

    /*
     * Now we can pull the pieces of the date out
     * of the default calendar and put them into
     * the user provided calendar
     */
    cal.set(Calendar.YEAR, defaultCal.get(Calendar.YEAR));
    cal.set(Calendar.MONTH, defaultCal.get(Calendar.MONTH));
    cal.set(Calendar.DAY_OF_MONTH, defaultCal.get(Calendar.DAY_OF_MONTH));

    /*
     * This looks a little odd but it is correct -
     * Calendar.getTime() returns a Date...
     */
    return new java.sql.Date(cal.getTime().getTime());
}