com.interface21.jdbc.object
Class SqlUpdate

java.lang.Object
  |
  +--com.interface21.jdbc.object.RdbmsOperation
        |
        +--com.interface21.jdbc.object.SqlOperation
              |
              +--com.interface21.jdbc.object.SqlUpdate

All Implemented Interfaces:

InitializingBean

public class SqlUpdate

extends SqlOperation

RdbmsOperation subclass representing a SQL update. Like a query, an update object is reusable. Like all RdbmsOperation objects, an update can have parameters and is defined in SQL.
This class provides a number of update() methods analogous to the execute() methods of query objects.
This class is concrete. Although it can be subclassed (for example to add a custom update method) it can easily be parameterized by setting SQL and declaring parameters.

Author:

Rod Johnson, Isabelle Muszynski

Fields inherited from class com.interface21.jdbc.object.RdbmsOperation

logger

Constructor Summary

SqlUpdate()
Constructor to allow use as a JavaBean.

SqlUpdate(javax.sql.DataSource ds, java.lang.String sql)
Constructs an update object with a given DataSource and SQL to keep consistent with the

SqlUpdate(javax.sql.DataSource ds, java.lang.String sql, int[] types)
Construct an update object with a given DataSource, SQL and anonymous parameters

SqlUpdate(javax.sql.DataSource ds, java.lang.String sql, int[] types, int maxRowsAffected)
Construct an update object with a given DataSource, SQL, anonymous parameters and specifying the maximum number of rows that may be affected.

Method Summary

void	setMaxRowsAffected(int max) Set the maximum number of rows that may be affected by this update.
void	setRequiredRowsAffected(int rowsAffected) Set the exact number of rows that must be affected by this update.
int	update() Convenience method to execute an update with no parameters
int	update(int p1) Convenient method to execute an update given one int arg
int	update(int p1, int p2) Convenient method to execute an update given two int args
int	update(java.lang.Object[] args) Generic method to execute the update given arguments.
int	update(java.lang.String p) Convenient method to execute an update given one String arg

Methods inherited from class com.interface21.jdbc.object.SqlOperation

compileInternal, getJdbcTemplate, newPreparedStatementCreator, onCompileInternal

Methods inherited from class com.interface21.jdbc.object.RdbmsOperation

afterPropertiesSet, compile, declareParameter, getDataSource, getDeclaredParameters, getSql, isCompiled, setDataSource, setSql, setTypes, validateParameters

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SqlUpdate

public SqlUpdate()

Constructor to allow use as a JavaBean. DataSource, SQL and any parameter declarations must be supplied before compilation and use.

SqlUpdate

public SqlUpdate(javax.sql.DataSource ds,
                 java.lang.String sql)

Constructs an update object with a given DataSource and SQL to keep consistent with the

Parameters:

ds - DataSource to use to obtain connections

sql - SQL

types - anonymous parameter declarations.

SqlUpdate

public SqlUpdate(javax.sql.DataSource ds,
                 java.lang.String sql,
                 int[] types)

Construct an update object with a given DataSource, SQL and anonymous parameters

Parameters:

ds - DataSource to use to obtain connections

sql - SQL

types - anonymous parameter declarations.

SqlUpdate

public SqlUpdate(javax.sql.DataSource ds,
                 java.lang.String sql,
                 int[] types,
                 int maxRowsAffected)

Construct an update object with a given DataSource, SQL, anonymous parameters and specifying the maximum number of rows that may be affected.

Parameters:

ds - DataSource to use to obtain connections

sql - SQL

types - anonymous parameter declarations.

maxRowsAffected - the maximum number of rows that may be affected by the update.

Method Detail

setMaxRowsAffected

public void setMaxRowsAffected(int max)

Set the maximum number of rows that may be affected by this update. The default value is 0, which does not limit the number of rows affected.

Parameters:

max - the maximum number of rows that can be affected by this update without this class's update() method considering it an error.

setRequiredRowsAffected

public void setRequiredRowsAffected(int rowsAffected)

Set the exact number of rows that must be affected by this update. The default value is 0, which allows any number of rows to be affected. An alternative to setting the maximum number of rows that may be affected.

Parameters:

rowsAffected - the exact number of rows that must be affected by this update.

update

public int update(java.lang.Object[] args)
           throws InvalidDataAccessApiUsageException

Generic method to execute the update given arguments. All other update() methods invoke this method.

Parameters:

args - array of object arguments

Returns:

the number of rows affected by the update

update

public int update()

Convenience method to execute an update with no parameters

update

public int update(int p1)

Convenient method to execute an update given one int arg

update

public int update(int p1,
                  int p2)

Convenient method to execute an update given two int args

update

public int update(java.lang.String p)

Convenient method to execute an update given one String arg