org.apache.derby.impl.sql.execute
Class GenericConstantAction

java.lang.Object
  org.apache.derby.impl.sql.execute.GenericConstantAction

All Implemented Interfaces:

ConstantAction

Direct Known Subclasses:

DDLConstantAction, LockTableConstantAction, SetSchemaConstantAction, SetTransactionIsolationConstantAction

abstract class GenericConstantAction

extends java.lang.Object

implements ConstantAction

Utilities for constant actions

Field Summary

Fields inherited from interface org.apache.derby.iapi.sql.execute.ConstantAction

RUNTIMESTATISTICS, STATISTICSTIMING

Constructor Summary

(package private)

GenericConstantAction()

Method Summary

boolean	modifiesTableId(UUID tableId) Does this constant action modify the passed in table uuid?
void	readExternal(java.io.ObjectInput in)
boolean	upToDate() Reports whether these constants are up-to-date.
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.derby.iapi.sql.execute.ConstantAction

executeConstantAction

Constructor Detail

GenericConstantAction

GenericConstantAction()

Method Detail

modifiesTableId

public boolean modifiesTableId(UUID tableId)
                        throws StandardException

Does this constant action modify the passed in table uuid? By modify we mean add or drop things tied to this table (e.g. index, trigger, constraint). Things like views or spses that reference this table don't count.

Specified by:

modifiesTableId in interface ConstantAction

Parameters:

tableId - the other table id

Throws:

StandardException - thrown on failure

readExternal

public final void readExternal(java.io.ObjectInput in)

writeExternal

public final void writeExternal(java.io.ObjectOutput out)

upToDate

public final boolean upToDate()
                       throws StandardException

Reports whether these constants are up-to-date. This returns true for homogenous Cloudscape/Cloudsync. For the Plugin, this may return false;

Specified by:

upToDate in interface ConstantAction

Returns:

true if these constants are up-to-date false otherwise

Throws:

StandardException