groovy.sql
Class DataSet

java.lang.Object
  groovy.sql.Sql
      groovy.sql.DataSet

public class DataSet
extends Sql

Represents an extent of objects

Version:

$Revision: 18226 $

Author:

Chris Stevenson, Paul King, James Strachan

Nested Class Summary

Nested classes/interfaces inherited from class groovy.sql.Sql

Sql.AbstractQueryCommand, Sql.PreparedQueryCommand, Sql.QueryCommand

Field Summary

Fields inherited from class groovy.sql.Sql

ARRAY, BIGINT, BINARY, BIT, BLOB, BOOLEAN, CHAR, CLOB, DATALINK, DATE, DECIMAL, DISTINCT, DOUBLE, FLOAT, INTEGER, JAVA_OBJECT, log, LONGVARBINARY, LONGVARCHAR, NULL, NUMERIC, OTHER, REAL, REF, SMALLINT, STRUCT, TIME, TIMESTAMP, TINYINT, VARBINARY, VARCHAR

Constructor Summary

DataSet(Sql sql, Class type)

DataSet(Sql sql, String table)

Method Summary

void	add(Map<String,Object> map)
void	cacheConnection(Closure closure) Caches the connection used while the closure is active.
protected void	closeResources(Connection connection, Statement statement) An extension point allowing the behavior of resource closing to be overridden in derived classes.
protected void	closeResources(Connection connection, Statement statement, ResultSet results) An extension point allowing derived classes to change the behavior of resource closing.
void	commit() If this SQL object was created with a Connection then this method commits the connection.
protected Connection	createConnection() An extension point allowing derived classes to change the behavior of connection creation.
DataSet	createView(Closure criteria)
void	each(Closure closure)
DataSet	findAll(Closure where)
Object	firstRow() Returns the first row from a DataSet's underlying table
List	getParameters()
String	getSql()
protected SqlOrderByVisitor	getSqlOrderByVisitor()
protected SqlWhereVisitor	getSqlWhereVisitor()
DataSet	reverse()
void	rollback() If this SQL object was created with a Connection then this method rolls back the connection.
List	rows() Returns a List of all of the rows from the table a DataSet represents
DataSet	sort(Closure sort)
void	withTransaction(Closure closure) Performs the closure within a transaction using a cached connection.

Methods inherited from class groovy.sql.Sql

ARRAY, asList, asList, asSql, BIGINT, BINARY, BIT, BLOB, BOOLEAN, cacheStatements, call, call, call, call, call, CHAR, CLOB, close, configure, createPreparedQueryCommand, createQueryCommand, DATALINK, dataSet, dataSet, DATE, DECIMAL, DISTINCT, DOUBLE, eachRow, eachRow, eachRow, eachRow, eachRow, eachRow, execute, execute, execute, executeInsert, executeInsert, executeInsert, executePreparedQuery, executeQuery, executeUpdate, executeUpdate, executeUpdate, expand, findWhereKeyword, firstRow, firstRow, firstRow, FLOAT, getConnection, getDataSource, getParameters, getResultSetConcurrency, getResultSetHoldability, getResultSetType, getUpdateCount, in, inout, INTEGER, isCacheStatements, JAVA_OBJECT, loadDriver, LONGVARBINARY, LONGVARCHAR, newInstance, newInstance, newInstance, newInstance, newInstance, newInstance, NULL, nullify, NUMERIC, OTHER, out, query, query, query, REAL, REF, resultSet, rows, rows, rows, rows, rows, rows, setCacheStatements, setInternalConnection, setObject, setParameters, setResultSetConcurrency, setResultSetHoldability, setResultSetType, SMALLINT, STRUCT, TIME, TIMESTAMP, TINYINT, VARBINARY, VARCHAR, withBatch, withStatement

Methods inherited from class java.lang.Object

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

Constructor Detail

DataSet

public DataSet(Sql sql,
               Class type)

DataSet

public DataSet(Sql sql,
               String table)

Method Detail

createConnection

protected Connection createConnection()
                               throws SQLException

Description copied from class: Sql

An extension point allowing derived classes to change the behavior of connection creation. The default behavior is to either use the supplied connection or obtain it from the supplied datasource.

Overrides:

createConnection in class Sql

Returns:

the connection associated with this Sql

Throws:

SQLException - if a SQL error occurs

closeResources

protected void closeResources(Connection connection,
                              Statement statement,
                              ResultSet results)

Description copied from class: Sql

An extension point allowing derived classes to change the behavior of resource closing.

Overrides:

closeResources in class Sql

Parameters:

connection - the connection to close

statement - the statement to close

results - the results to close

closeResources

protected void closeResources(Connection connection,
                              Statement statement)

Description copied from class: Sql

An extension point allowing the behavior of resource closing to be overridden in derived classes.

Overrides:

closeResources in class Sql

Parameters:

connection - the connection to close

statement - the statement to close

cacheConnection

public void cacheConnection(Closure closure)
                     throws SQLException

Description copied from class: Sql

Caches the connection used while the closure is active. If the closure takes a single argument, it will be called with the connection, otherwise it will be called with no arguments.

Overrides:

cacheConnection in class Sql

Parameters:

closure - the given closure

Throws:

SQLException - if a database error occurs

withTransaction

public void withTransaction(Closure closure)
                     throws SQLException

Description copied from class: Sql

Performs the closure within a transaction using a cached connection. If the closure takes a single argument, it will be called with the connection, otherwise it will be called with no arguments.

Overrides:

withTransaction in class Sql

Parameters:

closure - the given closure

Throws:

SQLException - if a database error occurs

commit

public void commit()
            throws SQLException

Description copied from class: Sql

If this SQL object was created with a Connection then this method commits the connection. If this SQL object was created from a DataSource then this method does nothing.

Overrides:

commit in class Sql

Throws:

SQLException - if a database access error occurs

rollback

public void rollback()
              throws SQLException

Description copied from class: Sql

If this SQL object was created with a Connection then this method rolls back the connection. If this SQL object was created from a DataSource then this method does nothing.

Overrides:

rollback in class Sql

Throws:

SQLException - if a database access error occurs

add

public void add(Map<String,Object> map)
         throws SQLException

Throws:

SQLException

findAll

public DataSet findAll(Closure where)

sort

public DataSet sort(Closure sort)

reverse

public DataSet reverse()

each

public void each(Closure closure)
          throws SQLException

Throws:

SQLException

getSql

public String getSql()

getParameters

public List getParameters()

getSqlWhereVisitor

protected SqlWhereVisitor getSqlWhereVisitor()

getSqlOrderByVisitor

protected SqlOrderByVisitor getSqlOrderByVisitor()

createView

public DataSet createView(Closure criteria)

rows

public List rows()
          throws SQLException

Returns a List of all of the rows from the table a DataSet represents

Returns:

Returns a list of GroovyRowResult objects from the dataset

Throws:

SQLException - if a database error occurs

firstRow

public Object firstRow()
                throws SQLException

Returns the first row from a DataSet's underlying table

Returns:

Returns the first GroovyRowResult object from the dataset

Throws:

SQLException - if a database error occurs