com.ebasetech.ufs.utility
Interface PersistentOptimistic

All Superinterfaces:

Persistent, PersistentCommon, PersistentDeleteable, PersistentLoadable, PersistentSaveable, PersistentUpdateable

public interface PersistentOptimistic

extends Persistent

Classes that implement this interface are Persistent classes, but ones that place an additional requirement on the availability of somme form of optimistic locking.

Method Summary

java.lang.String	getLockSQL(com.ebasetech.ufs.kernel.IUFSServletContextProxy proxy) Answer the SQL that locks the target row, and produces a result set that can be checked for a modification elsewhere
boolean	isModified(java.sql.ResultSet rs) Answer true if the supplied result set contains values for the lock columns that are indicative of the receiver having been modified in the database

Methods inherited from interface com.ebasetech.ufs.utility.PersistentDeleteable

getDeleteStatement

Methods inherited from interface com.ebasetech.ufs.utility.PersistentCommon

bindKeys, getIdentifier, getTableName

Methods inherited from interface com.ebasetech.ufs.utility.PersistentUpdateable

getUpdateSQL, populateUpdateStmt, update

Methods inherited from interface com.ebasetech.ufs.utility.PersistentLoadable

getLoadSQL, populate, populate

Methods inherited from interface com.ebasetech.ufs.utility.PersistentSaveable

getAttributeColumnNames, populateInsertStmt, save

Method Detail

getLockSQL

public java.lang.String getLockSQL(com.ebasetech.ufs.kernel.IUFSServletContextProxy proxy)
                            throws java.sql.SQLException

Answer the SQL that locks the target row, and produces a result set that can be checked for a modification elsewhere

Throws:

java.sql.SQLException

isModified

public boolean isModified(java.sql.ResultSet rs)
                   throws java.sql.SQLException

Answer true if the supplied result set contains values for the lock columns that are indicative of the receiver having been modified in the database

Throws:

java.sql.SQLException