org.apache.commons.dbutils
Class QueryRunner

java.lang.Object
  org.apache.commons.dbutils.AbstractQueryRunner
      org.apache.commons.dbutils.QueryRunner

public class QueryRunner
extends AbstractQueryRunner

Executes SQL queries with pluggable strategies for handling ResultSets. This class is thread safe.

See Also:

ResultSetHandler

Field Summary

Fields inherited from class org.apache.commons.dbutils.AbstractQueryRunner

ds

Constructor Summary

QueryRunner()
Constructor for QueryRunner.

QueryRunner(boolean pmdKnownBroken)
Constructor for QueryRunner, allows workaround for Oracle drivers

QueryRunner(DataSource ds)
Constructor for QueryRunner which takes a DataSource.

QueryRunner(DataSource ds, boolean pmdKnownBroken)
Constructor for QueryRunner, allows workaround for Oracle drivers.

Method Summary

int[]	batch(Connection conn, String sql, Object[][] params) Execute a batch of SQL INSERT, UPDATE, or DELETE queries.
int[]	batch(String sql, Object[][] params) Execute a batch of SQL INSERT, UPDATE, or DELETE queries.
<T> T	query(Connection conn, String sql, Object[] params, ResultSetHandler<T> rsh) Deprecated. Use query(Connection,String,ResultSetHandler,Object...) instead
<T> T	query(Connection conn, String sql, Object param, ResultSetHandler<T> rsh) Deprecated. Use query(Connection, String, ResultSetHandler, Object...)
<T> T	query(Connection conn, String sql, ResultSetHandler<T> rsh) Execute an SQL SELECT query without any replacement parameters.
<T> T	query(Connection conn, String sql, ResultSetHandler<T> rsh, Object... params) Execute an SQL SELECT query with replacement parameters.
<T> T	query(String sql, Object[] params, ResultSetHandler<T> rsh) Deprecated. Use query(String, ResultSetHandler, Object...)
<T> T	query(String sql, Object param, ResultSetHandler<T> rsh) Deprecated. Use query(String, ResultSetHandler, Object...)
<T> T	query(String sql, ResultSetHandler<T> rsh) Executes the given SELECT SQL without any replacement parameters.
<T> T	query(String sql, ResultSetHandler<T> rsh, Object... params) Executes the given SELECT SQL query and returns a result object.
int	update(Connection conn, String sql) Execute an SQL INSERT, UPDATE, or DELETE query without replacement parameters.
int	update(Connection conn, String sql, Object... params) Execute an SQL INSERT, UPDATE, or DELETE query.
int	update(Connection conn, String sql, Object param) Execute an SQL INSERT, UPDATE, or DELETE query with a single replacement parameter.
int	update(String sql) Executes the given INSERT, UPDATE, or DELETE SQL statement without any replacement parameters.
int	update(String sql, Object... params) Executes the given INSERT, UPDATE, or DELETE SQL statement.
int	update(String sql, Object param) Executes the given INSERT, UPDATE, or DELETE SQL statement with a single replacement parameter.

Methods inherited from class org.apache.commons.dbutils.AbstractQueryRunner

close, close, close, fillStatement, fillStatementWithBean, fillStatementWithBean, getDataSource, isPmdKnownBroken, prepareConnection, prepareStatement, rethrow, wrap

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryRunner

public QueryRunner()

Constructor for QueryRunner.

QueryRunner

public QueryRunner(boolean pmdKnownBroken)

Constructor for QueryRunner, allows workaround for Oracle drivers

Parameters:

pmdKnownBroken - Oracle drivers don't support ParameterMetaData.getParameterType(int); if pmdKnownBroken is set to true, we won't even try it; if false, we'll try it, and if it breaks, we'll remember not to use it again.

QueryRunner

public QueryRunner(DataSource ds)

Constructor for QueryRunner which takes a DataSource. Methods that do not take a Connection parameter will retrieve connections from this DataSource.

Parameters:

ds - The DataSource to retrieve connections from.

QueryRunner

public QueryRunner(DataSource ds,
                   boolean pmdKnownBroken)

Constructor for QueryRunner, allows workaround for Oracle drivers. Methods that do not take a Connection parameter will retrieve connections from this DataSource.

Parameters:

ds - The DataSource to retrieve connections from.

pmdKnownBroken - Oracle drivers don't support ParameterMetaData.getParameterType(int); if pmdKnownBroken is set to true, we won't even try it; if false, we'll try it, and if it breaks, we'll remember not to use it again.

Method Detail

batch

public int[] batch(Connection conn,
                   String sql,
                   Object[][] params)
            throws SQLException

Execute a batch of SQL INSERT, UPDATE, or DELETE queries.

Parameters:

conn - The Connection to use to run the query. The caller is responsible for closing this Connection.

sql - The SQL to execute.

params - An array of query replacement parameters. Each row in this array is one set of batch replacement values.

Returns:

The number of rows updated per statement.

Throws:

SQLException - if a database access error occurs

Since:

DbUtils 1.1

batch

public int[] batch(String sql,
                   Object[][] params)
            throws SQLException

Execute a batch of SQL INSERT, UPDATE, or DELETE queries. The Connection is retrieved from the DataSource set in the constructor. This Connection must be in auto-commit mode or the update will not be saved.

Parameters:

sql - The SQL to execute.

params - An array of query replacement parameters. Each row in this array is one set of batch replacement values.

Returns:

The number of rows updated per statement.

Throws:

SQLException - if a database access error occurs

Since:

DbUtils 1.1

query

@Deprecated
public <T> T query(Connection conn,
                              String sql,
                              Object param,
                              ResultSetHandler<T> rsh)
        throws SQLException

Deprecated. Use query(Connection, String, ResultSetHandler, Object...)

Execute an SQL SELECT query with a single replacement parameter. The caller is responsible for closing the connection.

Type Parameters:

T - The type of object that the handler returns

Parameters:

conn - The connection to execute the query in.

sql - The query to execute.

param - The replacement parameter.

rsh - The handler that converts the results into an object.

Returns:

The object returned by the handler.

Throws:

SQLException - if a database access error occurs

query

@Deprecated
public <T> T query(Connection conn,
                              String sql,
                              Object[] params,
                              ResultSetHandler<T> rsh)
        throws SQLException

Deprecated. Use query(Connection,String,ResultSetHandler,Object...) instead

Execute an SQL SELECT query with replacement parameters. The caller is responsible for closing the connection.

Type Parameters:

T - The type of object that the handler returns

Parameters:

conn - The connection to execute the query in.

sql - The query to execute.

params - The replacement parameters.

rsh - The handler that converts the results into an object.

Returns:

The object returned by the handler.

Throws:

SQLException - if a database access error occurs

query

public <T> T query(Connection conn,
                   String sql,
                   ResultSetHandler<T> rsh,
                   Object... params)
        throws SQLException

Execute an SQL SELECT query with replacement parameters. The caller is responsible for closing the connection.

Type Parameters:

T - The type of object that the handler returns

Parameters:

conn - The connection to execute the query in.

sql - The query to execute.

rsh - The handler that converts the results into an object.

params - The replacement parameters.

Returns:

The object returned by the handler.

Throws:

SQLException - if a database access error occurs

query

public <T> T query(Connection conn,
                   String sql,
                   ResultSetHandler<T> rsh)
        throws SQLException

Execute an SQL SELECT query without any replacement parameters. The caller is responsible for closing the connection.

Type Parameters:

T - The type of object that the handler returns

Parameters:

conn - The connection to execute the query in.

sql - The query to execute.

rsh - The handler that converts the results into an object.

Returns:

The object returned by the handler.

Throws:

SQLException - if a database access error occurs

query

@Deprecated
public <T> T query(String sql,
                              Object param,
                              ResultSetHandler<T> rsh)
        throws SQLException

Deprecated. Use query(String, ResultSetHandler, Object...)

Executes the given SELECT SQL with a single replacement parameter. The Connection is retrieved from the DataSource set in the constructor.

Type Parameters:

T - The type of object that the handler returns

Parameters:

sql - The SQL statement to execute.

param - The replacement parameter.

rsh - The handler used to create the result object from the ResultSet.

Returns:

An object generated by the handler.

Throws:

SQLException - if a database access error occurs

query

@Deprecated
public <T> T query(String sql,
                              Object[] params,
                              ResultSetHandler<T> rsh)
        throws SQLException

Deprecated. Use query(String, ResultSetHandler, Object...)

Executes the given SELECT SQL query and returns a result object. The Connection is retrieved from the DataSource set in the constructor.

Type Parameters:

T - The type of object that the handler returns

Parameters:

sql - The SQL statement to execute.

params - Initialize the PreparedStatement's IN parameters with this array.

rsh - The handler used to create the result object from the ResultSet.

Returns:

An object generated by the handler.

Throws:

SQLException - if a database access error occurs

query

public <T> T query(String sql,
                   ResultSetHandler<T> rsh,
                   Object... params)
        throws SQLException

Executes the given SELECT SQL query and returns a result object. The Connection is retrieved from the DataSource set in the constructor.

Type Parameters:

T - The type of object that the handler returns

Parameters:

sql - The SQL statement to execute.

rsh - The handler used to create the result object from the ResultSet.

params - Initialize the PreparedStatement's IN parameters with this array.

Returns:

An object generated by the handler.

Throws:

SQLException - if a database access error occurs

query

public <T> T query(String sql,
                   ResultSetHandler<T> rsh)
        throws SQLException

Executes the given SELECT SQL without any replacement parameters. The Connection is retrieved from the DataSource set in the constructor.

Type Parameters:

T - The type of object that the handler returns

Parameters:

sql - The SQL statement to execute.

rsh - The handler used to create the result object from the ResultSet.

Returns:

An object generated by the handler.

Throws:

SQLException - if a database access error occurs

update

public int update(Connection conn,
                  String sql)
           throws SQLException

Execute an SQL INSERT, UPDATE, or DELETE query without replacement parameters.

Parameters:

conn - The connection to use to run the query.

sql - The SQL to execute.

Returns:

The number of rows updated.

Throws:

SQLException - if a database access error occurs

update

public int update(Connection conn,
                  String sql,
                  Object param)
           throws SQLException

Execute an SQL INSERT, UPDATE, or DELETE query with a single replacement parameter.

Parameters:

conn - The connection to use to run the query.

sql - The SQL to execute.

param - The replacement parameter.

Returns:

The number of rows updated.

Throws:

SQLException - if a database access error occurs

update

public int update(Connection conn,
                  String sql,
                  Object... params)
           throws SQLException

Execute an SQL INSERT, UPDATE, or DELETE query.

Parameters:

conn - The connection to use to run the query.

sql - The SQL to execute.

params - The query replacement parameters.

Returns:

The number of rows updated.

Throws:

SQLException - if a database access error occurs

update

public int update(String sql)
           throws SQLException

Executes the given INSERT, UPDATE, or DELETE SQL statement without any replacement parameters. The Connection is retrieved from the DataSource set in the constructor. This Connection must be in auto-commit mode or the update will not be saved.

Parameters:

sql - The SQL statement to execute.

Returns:

The number of rows updated.

Throws:

SQLException - if a database access error occurs

update

public int update(String sql,
                  Object param)
           throws SQLException

Executes the given INSERT, UPDATE, or DELETE SQL statement with a single replacement parameter. The Connection is retrieved from the DataSource set in the constructor. This Connection must be in auto-commit mode or the update will not be saved.

Parameters:

sql - The SQL statement to execute.

param - The replacement parameter.

Returns:

The number of rows updated.

Throws:

SQLException - if a database access error occurs

update

public int update(String sql,
                  Object... params)
           throws SQLException

Executes the given INSERT, UPDATE, or DELETE SQL statement. The Connection is retrieved from the DataSource set in the constructor. This Connection must be in auto-commit mode or the update will not be saved.

Parameters:

sql - The SQL statement to execute.

params - Initializes the PreparedStatement's IN (i.e. '?') parameters.

Returns:

The number of rows updated.

Throws:

SQLException - if a database access error occurs