com.quadcap.sql.AlterColumn Class Reference

Inheritance diagram for com.quadcap.sql.AlterColumn:

Detailed Description

Log Step to alter the definition of a table column.

Definition at line 57 of file AlterColumn.java.

Public Member Functions

AlterColumn ()

Default constructor.

AlterColumn (Session session, Table table, String columnName, Expression newDefault)

Explicit constructor from table, column name and new default value.

void undo (Session session) throws IOException, SQLException

Do/redo this step.

void redo (Session session) throws IOException, SQLException

Do/redo this step.

void prepare (Session session) throws IOException, SQLException

Perform any actions that are necessary to prepare this log record for being written to the log.

void readExternal (ObjectInput in) throws IOException, ClassNotFoundException

void writeExternal (ObjectOutput out) throws IOException

String toString ()

Extern getExtern ()

void setExtern (Extern extern)

Package Functions

Table getTable (Database db) throws IOException

Package Attributes

transient Table table

transient Column column

String columnName = null

String tableName = null

Expression oldDefault = null

Expression newDefault = null

Extern = null

com.quadcap.sql.AlterColumn.AlterColumn ( )

Default constructor.

Definition at line 69 of file AlterColumn.java.

com.quadcap.sql.AlterColumn.AlterColumn ( Session session,

Table table,

String columnName,

Expression newDefault

)

Explicit constructor from table, column name and new default value.

Definition at line 74 of file AlterColumn.java.
References com.quadcap.sql.TupleImpl.getName().

Extern com.quadcap.sql.AlterColumn.getExtern ( )

Definition at line 144 of file AlterColumn.java.

void com.quadcap.sql.AlterColumn.prepare ( Session session ) throws IOException, SQLException

Perform any actions that are necessary to prepare this log record for being written to the log.
This is called before the log record is written, and before the first invocation of 'redo'. It is not called subsequently, or during recovery.
Reimplemented from com.quadcap.sql.LogStep.
Definition at line 105 of file AlterColumn.java.
References com.quadcap.sql.AlterColumn.column, com.quadcap.sql.AlterColumn.columnName, com.quadcap.sql.TupleImpl.getColumn(), com.quadcap.sql.Column.getDefault(), com.quadcap.sql.AlterColumn.oldDefault, com.quadcap.sql.AlterColumn.prepare(), and com.quadcap.sql.AlterColumn.table.
Referenced by com.quadcap.sql.AlterColumn.prepare().

void com.quadcap.sql.AlterColumn.readExternal ( ObjectInput in ) throws IOException, ClassNotFoundException

Definition at line 112 of file AlterColumn.java.
References com.quadcap.sql.AlterColumn.readExternal().
Referenced by com.quadcap.sql.AlterColumn.readExternal().

com.quadcap.sql.AlterColumn.Extern = null [package]

Definition at line 143 of file AlterColumn.java.


Public Member Functions
	AlterColumn ()
	Default constructor.
	AlterColumn (Session session, Table table, String columnName, Expression newDefault)
	Explicit constructor from table, column name and new default value.
void	undo (Session session) throws IOException, SQLException
	Do/redo this step.
void	redo (Session session) throws IOException, SQLException
	Do/redo this step.
void	prepare (Session session) throws IOException, SQLException
	Perform any actions that are necessary to prepare this log record for being written to the log.
void	readExternal (ObjectInput in) throws IOException, ClassNotFoundException
void	writeExternal (ObjectOutput out) throws IOException
String	toString ()
Extern	getExtern ()
void	setExtern (Extern extern)
Package Functions
Table	getTable (Database db) throws IOException
Package Attributes
transient Table	table
transient Column	column
String	columnName = null
String	tableName = null
Expression	oldDefault = null
Expression	newDefault = null
	Extern = null