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Diffstat (limited to 'sdo-java/branches/sdo-1.1-incubating/lib/src/main/java/org/apache/tuscany/sdo/api/Event.java')
-rw-r--r-- | sdo-java/branches/sdo-1.1-incubating/lib/src/main/java/org/apache/tuscany/sdo/api/Event.java | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/sdo-java/branches/sdo-1.1-incubating/lib/src/main/java/org/apache/tuscany/sdo/api/Event.java b/sdo-java/branches/sdo-1.1-incubating/lib/src/main/java/org/apache/tuscany/sdo/api/Event.java new file mode 100644 index 0000000000..4b4d0c4050 --- /dev/null +++ b/sdo-java/branches/sdo-1.1-incubating/lib/src/main/java/org/apache/tuscany/sdo/api/Event.java @@ -0,0 +1,63 @@ +/** + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sdo.api; + +import commonj.sdo.Property; + +/** + * An experimental Tuscany API interface, subject to possible change, + * to permit notification of change events on a DataObject instance + */ +public interface Event { + + Object getNotifier(); + + /** + * constants returned from getEventType() + */ + int SET = 1; + int UNSET = 2; + int ADD = 3; + int REMOVE = 4; + int ADD_MANY = 5; + int REMOVE_MANY = 6; + int MOVE = 7; + int REMOVE_LISTENER = 8; + + int getEventType(); + + /** + * get the Property for which the value changed + */ + Property getProperty(); + Object getOldValue(); + Object getNewValue(); + + /* + * returns true if the Property value was in state "set" before this change occurred. + */ + boolean wasSet(); + boolean isTouch(); + + int NO_INDEX = -1; + int getPosition(); + + } + |