Quadcap Embeddable Database

com.quadcap.sql.AutoNumberStep Class Reference

Inheritance diagram for com.quadcap.sql.AutoNumberStep:

List of all members.

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Detailed Description

Log step to record allocations of auto numbers...

Author:

Stan Bailes

Definition at line 72 of file AutoNumberStep.java.

Public Member Functions
	AutoNumberStep ()
	Default constructor for serialization.
	AutoNumberStep (Session session, Table table, long num)
	Explicit constructor.
void	undo (Session session) throws IOException, SQLException
	We don't bother to undo this -- we don't mind gaps.
void	redo (Session session) throws IOException, SQLException
	"Redo" keeps the constraint number in sync.
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 ()
void	setCurrentId (long x)
	Exposed so a careful client can avoid an allocation.
void	setExtern (Extern extern)
Extern	getExtern ()
Package Attributes
String	tableName = null
long	num = 0
Static Package Attributes
Extern	extern

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Constructor & Destructor Documentation

com.quadcap.sql.AutoNumberStep.AutoNumberStep (   )

Default constructor for serialization. Definition at line 79 of file AutoNumberStep.java.

com.quadcap.sql.AutoNumberStep.AutoNumberStep (  Session  session, Table  table, long  num )

Explicit constructor. Definition at line 84 of file AutoNumberStep.java. References com.quadcap.sql.TupleImpl.getName().

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Member Function Documentation

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

Definition at line 141 of file AutoNumberStep.java.

void com.quadcap.sql.AutoNumberStep.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 106 of file AutoNumberStep.java. References com.quadcap.sql.AutoNumberStep.prepare(). Referenced by com.quadcap.sql.AutoNumberStep.prepare().

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

Definition at line 109 of file AutoNumberStep.java. References com.quadcap.sql.AutoNumberStep.readExternal(). Referenced by com.quadcap.sql.AutoNumberStep.readExternal().

void com.quadcap.sql.AutoNumberStep.redo (  Session  session  )  throws IOException, SQLException [virtual]

"Redo" keeps the constraint number in sync. We don't care about the rows for which this was generated, we just need the max number that we ever gave out.... Implements com.quadcap.sql.LogStep. Definition at line 100 of file AutoNumberStep.java. References com.quadcap.sql.AutoNumberStep.num, com.quadcap.sql.AutoNumberStep.redo(), com.quadcap.sql.AutoNumberStep.tableName, and com.quadcap.sql.Database.updateTableIdentity(). Referenced by com.quadcap.sql.AutoNumberStep.redo().

void com.quadcap.sql.AutoNumberStep.setCurrentId (  long  x  )

Exposed so a careful client can avoid an allocation. Definition at line 137 of file AutoNumberStep.java. References com.quadcap.sql.AutoNumberStep.setCurrentId(). Referenced by com.quadcap.sql.AutoNumberConstraint.checkInsert(), and com.quadcap.sql.AutoNumberStep.setCurrentId().

void com.quadcap.sql.AutoNumberStep.setExtern (  Extern  extern  )

Definition at line 140 of file AutoNumberStep.java. References com.quadcap.sql.AutoNumberStep.setExtern(). Referenced by com.quadcap.sql.AutoNumberStep.setExtern().

String com.quadcap.sql.AutoNumberStep.toString (   )

Definition at line 124 of file AutoNumberStep.java. References com.quadcap.sql.AutoNumberStep.num, and com.quadcap.sql.AutoNumberStep.tableName.

void com.quadcap.sql.AutoNumberStep.undo (  Session  session  )  throws IOException, SQLException [virtual]

We don't bother to undo this -- we don't mind gaps. Implements com.quadcap.sql.LogStep. Definition at line 93 of file AutoNumberStep.java. References com.quadcap.sql.AutoNumberStep.undo(). Referenced by com.quadcap.sql.AutoNumberStep.undo().

void com.quadcap.sql.AutoNumberStep.writeExternal (  ObjectOutput  out  )  throws IOException

Definition at line 117 of file AutoNumberStep.java. References com.quadcap.sql.AutoNumberStep.num, com.quadcap.sql.AutoNumberStep.tableName, and com.quadcap.sql.AutoNumberStep.writeExternal(). Referenced by com.quadcap.sql.AutoNumberStep.writeExternal().

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Member Data Documentation

Extern com.quadcap.sql.AutoNumberStep.extern [static, package]

Definition at line 139 of file AutoNumberStep.java.

long com.quadcap.sql.AutoNumberStep.num = 0 [package]

Definition at line 74 of file AutoNumberStep.java. Referenced by com.quadcap.sql.AutoNumberStep.redo(), com.quadcap.sql.AutoNumberStep.toString(), and com.quadcap.sql.AutoNumberStep.writeExternal().

String com.quadcap.sql.AutoNumberStep.tableName = null [package]

Definition at line 73 of file AutoNumberStep.java. Referenced by com.quadcap.sql.AutoNumberStep.redo(), com.quadcap.sql.AutoNumberStep.toString(), and com.quadcap.sql.AutoNumberStep.writeExternal().