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Disable bpel:selectionFailure Fault Example

The following example shows the effect of enabling and disabling the

Disable bpel:selectionFailure Fault

(BPEL4WS 1.1 processes:

bpws:selectionFailure

) option.

For details on WS-BPEL 2.0 processes, see

Using the Process Developer Disable Selection Failure Fault Extension

For a description of this BPEL4WS 1.1 preference, see

Simulation Preferences

Code sample:

<assign>
  <copy>
    <from part="OrderInfo" query="/ns1:OrderInfo
        /ns1:OrderHeader/ns1:BillToInfo/ns1:Addr1"
         variable="var1"/>
    <to part="OrderInfo" query="/ns1::Addr1"
         variable="var2"/>
  </copy>
</assign>

In the code sample, the

Assign From/To

query is for an optional element, as shown in the schema snippet below.

Schema Snippet for Var1 and Var2
:

<xs:complexType
     name="AddressInfoType">
  <xs:sequence>
   <xs:element ref="ord:Name"/>
   <xs:element ref="ord:Addr1" minOccurs="0"/>
   <xs:element ref="ord:Addr2"
      />
   <xs:element ref="ord:City"/>
   <xs:element ref="ord:St"/>
   <xs:element ref="ord:Zip"/>
   <xs:element ref="ord:Cntry"
      />
  </xs:sequence>
 </xs:complexType>
<xs:element name="BillToInfo"
    type="ord:AddressInfoType"/>

Var1 Sample Data	Var2 Initialization
<ns1:OrderInfo xmlns:ns1="http://temp.com"> <ns1:OrderHeader> <ns1:OrdId>78</ns1:OrdId> <ns1:BillToInfo> <ns1:Name>Name1</ns1:Name> (Addr1 is missing) <ns1:Addr2>1 Main St </ns1:Addr2> <ns1:City>Albany</ns1:City> <ns1:St>NY</ns1:St> <ns1:Zip>12012</ns1:Zip> <ns1:Cntry>USA</ns1:Cntry> </ns1:BillToInfo> ...	<ns1:OrderInfo xmlns:ns1="http://temp.com"> <ns1:OrderHeader> <ns1:OrdId/> <ns1:BillToInfo> <ns1:Name/> <ns1:Addr1/> <ns1:Addr2/ <ns1:City/> <ns1:St/> <ns1:Zip/> <ns1:Cntry/> </ns1:BillToInfo> ...

Var1 Sample Data

Var2 Initialization

<ns1:OrderInfo 
    xmlns:ns1="http://temp.com">
 <ns1:OrderHeader>
  <ns1:OrdId>78</ns1:OrdId>
   <ns1:BillToInfo>
    <ns1:Name>Name1</ns1:Name>
    (Addr1 is missing)
    <ns1:Addr2>1 Main St
        </ns1:Addr2>
    <ns1:City>Albany</ns1:City>
    <ns1:St>NY</ns1:St>
    <ns1:Zip>12012</ns1:Zip>
    <ns1:Cntry>USA</ns1:Cntry>
   </ns1:BillToInfo>
...

<ns1:OrderInfo 
    xmlns:ns1="http://temp.com">
 <ns1:OrderHeader>
  <ns1:OrdId/>
   <ns1:BillToInfo>
    <ns1:Name/>
    <ns1:Addr1/>
    <ns1:Addr2/
    <ns1:City/>
    <ns1:St/>
    <ns1:Zip/>
    <ns1:Cntry/>
   </ns1:BillToInfo>
...

With

Disable bpel:selectionFailure Fault

disabled
, the simulation ends in a Selection Failure fault because

Var1

is missing the query selection node, and it cannot be assigned to the

Var2

query selection node.

With

Disable bpel:selectionFailure Fault

enabled, the process terminates normally because the empty selection node is allowed. A null value is added to

Addr1

during the assignment.