/**
* Scans a list of <code>PersistentObject</code>s and return the object that matches the key or
* <code>null</code> if not found.
*
* @param list list of <code>PersistentObject</code>s to scan.
* @param encodedKey key to locate correct record on the list.
* @return key-matching record of <code>null</code> if not found.
*/
public static PersistentObject getPoInList(List list, String encodedKey) {
Iterator iter = list.iterator();
while (iter.hasNext()) {
PersistentObject p = (PersistentObject) iter.next();
if (p.getEncodedKey().equals(encodedKey)) {
return p;
}
}
return null;
}
/**
* Using the list of <code>ColumnSpec</code> instances, set the prepared statement values from
* parameter.
*
* @param obj is assumed to be a <code>List</code> of objects.
* @throws SQLException if a JDBC set parameter method fails.
*/
public void setPreparedValues(Object obj) throws SQLException {
List params = (List) obj;
if (params.size() != columnSpecs.size()) {
throw new IllegalArgumentException(
"Illegal list of parameters. There are "
+ columnSpecs.size()
+ " parameters to fill but argument supplied has "
+ params.size()
+ ".");
}
Iterator columnSpecIterator = columnSpecs.iterator();
Iterator objIterator = params.iterator();
int idx = 1;
while (columnSpecIterator.hasNext()) {
ColumnSpec aColumnSpec = (ColumnSpec) columnSpecIterator.next();
setPreparedColumnValue(aColumnSpec, objIterator.next(), idx);
idx++;
}
}
/**
* Updates a <code>List</code> of objects obtained through a call to <code>findAllByList()</code>.
* Each modified row in the list will be updated.
*
* @param list list of <code>PersistentObject</code>s.
* @exception ObjectHasChangedException Description of the Exception
* @exception MissingAttributeException Description of the Exception
* @throws ObjectHasChangeException when another user has already updated the record (i.e. an
* optimistic lock error.
* @throws MissingAtributeException if the column specification for some fields are marked as
* required and these fields are <code>null</code> in the <code>PersistentObject</code>
* parameter.
* @throws DuplicateRowException if an insert operation fails or would fail because of key
* duplication.
* @throws InvalidValueException if a value in a column is invalid (e.g. out of range).
* @see #findByKey(Object)
* @see #getAllAsList()
*/
public void update(List list)
throws ObjectHasChangedException, MissingAttributeException, DuplicateRowException,
InvalidValueException {
update(list.iterator());
}