Module org.eclipse.persistence.core

Package org.eclipse.persistence.internal.expressions

Class ForUpdateOfClause

java.lang.Object

org.eclipse.persistence.internal.expressions.ForUpdateClause

org.eclipse.persistence.internal.expressions.ForUpdateOfClause

All Implemented Interfaces:

Serializable, Cloneable

public class ForUpdateOfClause
extends ForUpdateClause

Purpose:Represents The FOR UPDATE OF fine-grained pessimistically locking clause.

Since:

Oracle Toplink 10g AS

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected List<Expression>	lockedExpressions

Fields inherited from class org.eclipse.persistence.internal.expressions.ForUpdateClause

NO_LOCK_CLAUSE

Constructor Summary

Constructors

Constructor	Description
ForUpdateOfClause()

Method Summary

Modifier and Type	Method	Description
void	addLockedExpression(FieldExpression expression)
void	addLockedExpression(ObjectExpression expression)
Collection	getAliasesOfTablesToBeLocked(SQLSelectStatement statement)	INTERNAL: Returns collection of aliases of the tables to be locked.
List<Expression>	getLockedExpressions()
boolean	isForUpdateOfClause()
boolean	isReferenceClassLocked()
void	printSQL(ExpressionSQLPrinter printer, SQLSelectStatement statement)	INTERNAL: Prints the as of clause for an expression inside of the FROM clause.
void	setLockedExpressions(List<Expression> lockedExpressions)
void	setLockMode(short lockMode)

Methods inherited from class org.eclipse.persistence.internal.expressions.ForUpdateClause

clone, getLockMode, getWaitTimeout, newInstance, newInstance

Methods inherited from class java.lang.Object

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

Field Details

lockedExpressions

protected List<Expression> lockedExpressions

Constructor Details

ForUpdateOfClause

public ForUpdateOfClause()

Method Details

addLockedExpression

public void addLockedExpression(ObjectExpression expression)

addLockedExpression

public void addLockedExpression(FieldExpression expression)

getLockedExpressions

public List<Expression> getLockedExpressions()

isForUpdateOfClause

public boolean isForUpdateOfClause()

Overrides:

isForUpdateOfClause in class ForUpdateClause

isReferenceClassLocked

public boolean isReferenceClassLocked()

Overrides:

isReferenceClassLocked in class ForUpdateClause

setLockedExpressions

public void setLockedExpressions(List<Expression> lockedExpressions)

setLockMode

public void setLockMode(short lockMode)

printSQL

public void printSQL(ExpressionSQLPrinter printer,
 SQLSelectStatement statement)

INTERNAL: Prints the as of clause for an expression inside of the FROM clause.

Overrides:

printSQL in class ForUpdateClause

getAliasesOfTablesToBeLocked

public Collection getAliasesOfTablesToBeLocked(SQLSelectStatement statement)

INTERNAL: Returns collection of aliases of the tables to be locked. Only used by platforms that lock tables individually in FROM clause (platform.shouldPrintLockingClauseAfterWhereClause()==false) like SQLServer

Overrides:

getAliasesOfTablesToBeLocked in class ForUpdateClause