Rolls back the current transaction.
<dsp:rollbackTransaction var-spec>
...
</dsp:rollbackTransaction>Attributes
var-spec
An EL variable or scripting variable that is defined with one of these attributes:
Attribute | Description |
|---|---|
| Names an EL variable. When you use |
| Names a scripting variable that scriptlets and expressions can access at runtime. |
The variable has two properties:
success: A Boolean property, specifies the status of the rollback transaction operation. A call toisSuccessobtains the property’s setting.exception: Identifies theThrowableexception object produced when a transaction does not rollback properly. A call togetExceptionreturns the exception object.
Usage Notes
dsp:rollbackTransaction causes the tasks associated with the current transaction to halt processing and return to their pre-transaction state. This tag tracks whether the rollback action is successful and when it is not, provides a Throwable exception object. This tag creates an EL variable that can be referenced by later tags, and provides access to the referenced object’s success and exception properties.
Example
<dsp:rollbackTransaction var="rollbackXA"/>
<c:choose>
<c:when test="${rollbackXA.success}">
Your band uniform order was canceled.
</c:when>
<c:otherwise>
Your band uniform order could not be canceled. Here's why:
<c:out value="${rollbackXA.exception}"/>
</c:otherwise
</c:choose>In this example, if a particular transaction is successfully rolled back, the user sees the message Your band uniform order was canceled. If the transaction is not successfully rolled back, the user sees the second message string Your band uniform order was canceled. Here's why: and the exception.
