Note: The setXXX methods for setting IN parameter values must * specify types that are compatible with the defined SQL type of the input * parameter. For instance, if the IN parameter has SQL type Integer, then * setInt should be used. * - * If arbitrary parameter type conversions are required, then the setObject + *
If arbitrary parameter type conversions are required, then the setObject * method should be used with a target SQL type. * * @see ResultSet @@ -33,10 +32,10 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta Connection connection; /** - * Constructor for the PreparedStatement class. Split the SQL statement - * into segments - separated by the arguments. When we rebuild the - * thing with the arguments, we can substitute the args and join the - * whole thing together. + * Constructor for the PreparedStatement class. + * Split the SQL statement into segments - separated by the arguments. + * When we rebuild the thing with the arguments, we can substitute the + * args and join the whole thing together. * * @param conn the instanatiating connection * @param sql the SQL statement with ? for IN markers @@ -125,7 +124,7 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta /** * Set a parameter to SQL NULL * - * Note: You must specify the parameters SQL type (although + *
Note: You must specify the parameters SQL type (although * PostgreSQL ignores it) * * @param parameterIndex the first parameter is 1, etc... @@ -254,35 +253,49 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta */ public void setString(int parameterIndex, String x) throws SQLException { - StringBuffer b = new StringBuffer(); - int i; - - b.append('\''); - for (i = 0 ; i < x.length() ; ++i) - { - char c = x.charAt(i); - if (c == '\\' || c == '\'') - b.append((char)'\\'); - b.append(c); - } - b.append('\''); - set(parameterIndex, b.toString()); + // if the passed string is null, then set this column to null + if(x==null) + set(parameterIndex,"null"); + else { + StringBuffer b = new StringBuffer(); + int i; + + b.append('\''); + for (i = 0 ; i < x.length() ; ++i) + { + char c = x.charAt(i); + if (c == '\\' || c == '\'') + b.append((char)'\\'); + b.append(c); + } + b.append('\''); + set(parameterIndex, b.toString()); + } } - /** - * Set a parameter to a Java array of bytes. The driver converts this - * to a SQL VARBINARY or LONGVARBINARY (depending on the argument's - * size relative to the driver's limits on VARBINARYs) when it sends - * it to the database. - * - * @param parameterIndex the first parameter is 1... - * @param x the parameter value - * @exception SQLException if a database access error occurs - */ - public void setBytes(int parameterIndex, byte x[]) throws SQLException - { - throw new SQLException("Binary Data not supported"); - } + /** + * Set a parameter to a Java array of bytes. The driver converts this + * to a SQL VARBINARY or LONGVARBINARY (depending on the argument's + * size relative to the driver's limits on VARBINARYs) when it sends + * it to the database. + * + *
Implementation note:
+ *
With postgresql, this creates a large object, and stores the
+ * objects oid in this column.
+ *
+ * @param parameterIndex the first parameter is 1...
+ * @param x the parameter value
+ * @exception SQLException if a database access error occurs
+ */
+ public void setBytes(int parameterIndex, byte x[]) throws SQLException
+ {
+ LargeObjectManager lom = connection.getLargeObjectAPI();
+ int oid = lom.create();
+ LargeObject lob = lom.open(oid);
+ lob.write(x);
+ lob.close();
+ setInt(parameterIndex,oid);
+ }
/**
* Set a parameter to a java.sql.Date value. The driver converts this
@@ -294,16 +307,30 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta
*/
public void setDate(int parameterIndex, java.sql.Date x) throws SQLException
{
- SimpleDateFormat df = new SimpleDateFormat(connection.europeanDates?"''dd-MM-yyyy''":"''MM-dd-yyyy''");
-
- set(parameterIndex, df.format(x));
+ SimpleDateFormat df = new SimpleDateFormat("''"+connection.getDateStyle()+"''");
+
+ // Ideally the following should work:
+ //
+ // set(parameterIndex, df.format(x));
+ //
+ // however, SimpleDateFormat seems to format a date to the previous
+ // day. So a fix (for now) is to add a day before formatting.
+ // This needs more people to confirm this is really happening, or
+ // possibly for us to implement our own formatting code.
+ //
+ // I've tested this with the Linux jdk1.1.3 and the Win95 JRE1.1.5
+ //
+ set(parameterIndex, df.format(new java.util.Date(x.getTime()+DAY)));
}
+
+ // This equates to 1 day
+ private static final int DAY = 86400000;
/**
* Set a parameter to a java.sql.Time value. The driver converts
* this to a SQL TIME value when it sends it to the database.
*
- * @param parameterIndex the first parameter is 1...
+ * @param parameterIndex the first parameter is 1...));
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
@@ -332,7 +359,7 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta
* end-of-file. The JDBC driver will do any necessary conversion from
* ASCII to the database char format.
*
- * Note: This stream object can either be a standard Java
+ *
Note: This stream object can either be a standard Java * stream object or your own subclass that implements the standard * interface. * @@ -353,7 +380,7 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta * end-of-file. The JDBC driver will do any necessary conversion from * UNICODE to the database char format. * - * Note: This stream object can either be a standard Java + *
Note: This stream object can either be a standard Java * stream object or your own subclass that implements the standard * interface. * @@ -372,7 +399,7 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta * JDBC will read the data from the stream as needed, until it reaches * end-of-file. * - * Note: This stream object can either be a standard Java + *
Note: This stream object can either be a standard Java * stream object or your own subclass that implements the standard * interface. * @@ -406,10 +433,10 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta * Set the value of a parameter using an object; use the java.lang * equivalent objects for integral values. * - * The given Java object will be converted to the targetSqlType before + *
The given Java object will be converted to the targetSqlType before * being sent to the database. * - * note that this method may be used to pass database-specific + *
note that this method may be used to pass database-specific * abstract data types. This is done by using a Driver-specific * Java type and using a targetSqlType of java.sql.Types.OTHER * @@ -450,7 +477,7 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta case Types.TIMESTAMP: setTimestamp(parameterIndex, (Timestamp)x); case Types.OTHER: - setString(parameterIndex, ((PG_Object)x).value); + setString(parameterIndex, ((PGobject)x).getValue()); default: throw new SQLException("Unknown Types value"); } @@ -485,8 +512,8 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta setTimestamp(parameterIndex, (Timestamp)x); else if (x instanceof Boolean) setBoolean(parameterIndex, ((Boolean)x).booleanValue()); - else if (x instanceof PG_Object) - setString(parameterIndex, ((PG_Object)x).value); + else if (x instanceof PGobject) + setString(parameterIndex, ((PGobject)x).getValue()); else throw new SQLException("Unknown object type"); } -- cgit v1.2.3