org.axiondb.engine.commands

Class UpdateCommand

java.lang.Object

org.axiondb.engine.commands.BaseAxionCommand

org.axiondb.engine.commands.ChildTableUpdater

org.axiondb.engine.commands.UpdateCommand

All Implemented Interfaces:

AxionCommand

public class UpdateCommand
extends ChildTableUpdater

An UPDATE command.

Version:

$Revision: 1.64 $ $Date: 2006/01/10 21:02:37 $

Constructor Summary

Constructors

Constructor and Description
UpdateCommand()

Method Summary

Modifier and Type	Method and Description
void	addColumn(ColumnIdentifier col)
void	addValue(Selectable val)
protected void	buildBindVariables()
boolean	execute(Database database) Executes an SQL statement that may return multiple results.
AxionResultSet	executeQuery(Database database) Unsupported, use executeUpdate(org.axiondb.Database)instead.
int	executeUpdate(Database db) Executes an SQL that may add, delete or modify zero or more rows within the database, such as an INSERT, UPDATE or DELETE statement.
int	getColumnCount()
java.util.Iterator	getColumnIterator()
org.axiondb.engine.commands.UpdateCommand.ExceptionWhenClause	getExceptionWhenClause()
TableIdentifier	getTable()
int	getValueCount()
java.util.Iterator	getValueIterator()
Selectable	getWhere()
protected void	resolve(Database db)
void	setExceptionWhenClause(DMLWhenClause w, TableIdentifier t, java.util.List cols, java.util.List vals)
void	setQueryContext(AxionQueryContext context)
void	setTable(TableIdentifier table)
void	setWhere(Selectable where)

Methods inherited from class org.axiondb.engine.commands.ChildTableUpdater

deleteOrSetNullChildRows, deleteOrSetNullChildRows, updateOrSetNullChildRows, updateOrSetNullChildRows

Methods inherited from class org.axiondb.engine.commands.BaseAxionCommand

assertNotReadOnly, attemptToConvertValue, bindAll, clearBindings, createResolveSelectableVisitor, executeQuery, getBindVariableIterator, getBindVariableIterator, getBindVariables, getBindVariableVisitor, getColIdentifierList, getCommitSize, getEffectedRowCount, getResultSet, getRowIterator, makeRowDecorator, populateDefaultValues, populateSequenceColumns, resolveGeneratedColumns, resolveGeneratedColumns, resolveSelectable, resolveSelectable, resolveSelectableList, resolveSelectableList, setBindVariableVisitor, setDeferAllConstraintIfRequired, setEffectedRowCount, setResultSet, updateGeneratedValues

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateCommand

public UpdateCommand()

Method Detail

addColumn

public void addColumn(ColumnIdentifier col)

addValue

public void addValue(Selectable val)

execute

public boolean execute(Database database)
                throws AxionException

Description copied from interface: AxionCommand

Executes an SQL statement that may return multiple results.

Returns:

true if one or more ResultSets were generated, false otherwise

Throws:

AxionException

See Also:

Statement.execute(java.lang.String), PreparedStatement.execute()

executeQuery

public AxionResultSet executeQuery(Database database)
                            throws AxionException

Unsupported, use executeUpdate(org.axiondb.Database)instead.

Returns:

the generated ResultSet

Throws:

java.lang.UnsupportedOperationException

AxionException

See Also:

Statement.executeQuery(java.lang.String), PreparedStatement.executeQuery()

executeUpdate

public int executeUpdate(Database db)
                  throws AxionException

Description copied from interface: AxionCommand

Executes an SQL that may add, delete or modify zero or more rows within the database, such as an INSERT, UPDATE or DELETE statement. In addition, SQL statements that return nothing, such as SQL DDL statements, can be executed via this method.

Returns:

the number of rows modified

Throws:

AxionException

See Also:

Statement.executeUpdate(java.lang.String), PreparedStatement.executeUpdate()

getColumnCount

public int getColumnCount()

getColumnIterator

public java.util.Iterator getColumnIterator()

getExceptionWhenClause

public org.axiondb.engine.commands.UpdateCommand.ExceptionWhenClause getExceptionWhenClause()

getTable

public TableIdentifier getTable()

getValueCount

public int getValueCount()

getValueIterator

public java.util.Iterator getValueIterator()

getWhere

public Selectable getWhere()

setExceptionWhenClause

public void setExceptionWhenClause(DMLWhenClause w,
                                   TableIdentifier t,
                                   java.util.List cols,
                                   java.util.List vals)

setQueryContext

public void setQueryContext(AxionQueryContext context)

setTable

public void setTable(TableIdentifier table)

setWhere

public void setWhere(Selectable where)

buildBindVariables

protected void buildBindVariables()

Overrides:

buildBindVariables in class BaseAxionCommand

resolve

protected void resolve(Database db)
                throws AxionException

Throws:

AxionException