Re-introduced the bpmn-envelope-decorator-bounds.xsd with an attribut…

…e group

README.adoc

@@ -1,6 +1,14 @@
 BPMN 2.0 Extension for Envelope Decorator Bounds
 ================================================
 
+link:bpmn-envelope-decorator-bounds.xsd[XML Schema including full Documentation]
+
+This XML schema defines and documents BPMN 2.0 extension
+attributes to overcome limitations of BPMN Diagram Interchange.
+
+In particular, the attribute defined in BPMNEnvelopeDecorator allows to interchange the position and dimensions
+of the envelope decorator on a BPMN Message Flow.
+
 With this extension the Envelope Decorator can be freely positioned
 along the Message Flow and not just in the middle of it.
 

bpmn-envelope-decorator-bounds.xsd

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<schema
+  xmlns="http://www.w3.org/2001/XMLSchema"
+  targetNamespace="http://www.omg.org/spec/BPMN/non-normative/extensions/envelope-decorator-bounds/1.0"
+  xmlns:deco="http://www.omg.org/spec/BPMN/non-normative/extensions/envelope-decorator-bounds/1.0"
+  xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL"
+  xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI"
+  xmlns:di="http://www.omg.org/spec/DD/20100524/DI"
+  xmlns:dc="http://www.omg.org/spec/DD/20100524/DC">
+
+  <import namespace="http://www.omg.org/spec/BPMN/20100524/MODEL" schemaLocation="bpmn/BPMN20.xsd" />
+  <import namespace="http://www.omg.org/spec/DD/20100524/DC" schemaLocation="bpmn/DC.xsd" />
+  <import namespace="http://www.omg.org/spec/DD/20100524/DI" schemaLocation="bpmn/DI.xsd" />
+
+  <annotation>
+    <documentation>
+      This XML schema defines and documents BPMN 2.0 extension attributes
+	  to overcome limitations of BPMN Diagram Interchange.
+    </documentation>
+  </annotation>
+
+
+
+  <attributeGroup name="BPMNEnvelopeDecorator">
+    <annotation>
+      <documentation>
+        Extension attribute on bpmndi:BPMNEdge that reference a bpmn:MessageFlow
+
+        BPMNEnvelopeDecorator allows to interchange the position and dimensions
+        of the Envelope Decorator on a BPMN Message Flow.
+        With this extension the Envelope Decorator can be freely positioned
+        along the Message Flow and not just in the middle of it.
+
+        BPMN 2.1, page 411 (PDF 441) says:
+        "Note that for Message Flow with an envelope decorator, the envelope
+        decorator should be at the midpoint of the message flow. BPMN DI does
+        not provide an interchange of the bounds of the envelope decorator."
+
+        Example:
+            <bpmndi:BPMNEdge bpmnElement="_09e7cb23-4a1b-4165-b93a-cf635c223ee5" messageVisibleKind="initiating" id="E1373638081031__09e7cb23-4a1b-4165-b93a-cf635c223ee5" deco:height="12" deco:width="17" deco:x="209" deco:y="336.0">
+                <di:waypoint x="305.0" y="188.0"/>
+                <di:waypoint x="305.0" y="342.0"/>
+                <di:waypoint x="130.0" y="342.0"/>
+                <di:waypoint x="131.0" y="651.0"/>
+                <bpmndi:BPMNLabel labelStyle="LS1373638080849">
+                    <dc:Bounds height="12.804751171875008" width="94.93333333333335" x="167.10533963254568" y="359.56612835107035"/>
+                </bpmndi:BPMNLabel>
+            </bpmndi:BPMNEdge>
+
+        See also bpmn-envelope-decorator-bounds.png
+      </documentation>
+    </annotation>
+    <attribute name="x" type="double"/>
+    <attribute name="y" type="double"/>
+    <attribute name="height" type="double"/>
+    <attribute name="width" type="double"/>
+  </attributeGroup>
+
+</schema>

test-validation-of-example.sh

@@ -1,2 +1,3 @@
 #!/bin/sh
+xmllint  --schema 'bpmn/BPMN20.xsd' --schema bpmn-envelope-decorator-bounds.xsd --noout bpmn-envelope-decorator-bounds.bpmn
 xmllint  --schema 'bpmn/BPMN20.xsd' --noout bpmn-envelope-decorator-bounds.bpmn