Examples of com.vaadin.addon.sqlcontainer.OptimisticLockException

com.vaadin.addon.sqlcontainer.OptimisticLockException
An OptimisticLockException is thrown when trying to update or delete a row that has been changed since last read from the database. OptimisticLockException is a runtime exception because optimistic locking is turned off by default, and as such will never be thrown in a default configuration. In order to turn on optimistic locking, you need to specify the version column in your TableQuery instance. @see com.vaadin.addon.sqlcontainer.query.TableQuery#setVersionColumn(String) @author Jonatan Kronqvist / Vaadin Ltd

            setVersionColumnFlagInProperty(row);
            sh = sqlGenerator.generateUpdateQuery(tableName, row);
            result = executeUpdate(sh);
        }
        if (versionColumn != null && result == 0) {
            throw new OptimisticLockException(
                    "Someone else changed the row that was being updated.",
                    row.getId());
        }
        return result;
    }

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        debug("Removing row with id: " + row.getId().getId()[0].toString());
        if (executeUpdate(sqlGenerator.generateDeleteQuery(getTableName(), row)) == 1) {
            return true;
        }
        if (versionColumn != null) {
            throw new OptimisticLockException(
                    "Someone else changed the row that was being deleted.",
                    row.getId());
        }
        return false;
    }

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Related Classes of com.vaadin.addon.sqlcontainer.OptimisticLockException

com.vaadin.addon.sqlcontainer.query.TableQuery

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