<case>

Perform a set of activities when a condition is matched within a <switch> element.

Syntax

<switch>
   <case>
     ...
   </case>
    ...
   <default>
     ...
   </default> 
</switch>

Details

Attribute or Element	Description	Value
condition attribute	Required. If this expression evaluates to true, the contents of this <case> element are executed. If false, this <case> is ignored.	An expression that evaluates to the integer value 1 (if true) or 0 (if false). This expression must use the scripting language specified by the containing <process> element.
name, disabled, xpos, ypos, xend, yend attributes	See “Common Attributes and Elements.”
<annotation> element	See “Common Attributes and Elements.”
Other elements	Optional. <case> may contain zero or more of the following elements in any combination: <alert>, <assign>, <branch>, <break>, <call>, <code>, <continue>, <delay>, <empty>, <flow>, <foreach>, <if>, <label>, <milestone>, <reply>, <rule>, <scope>, <sequence>, <sql>, <switch>, <sync>, <throw>, <trace>, <transform>, <until>, <while>, <xpath>, or <xslt>.

Description

A <switch> element contains a sequence of one or more <case> elements and an optional <default> element.

When a <switch> element is executed, it evaluates each <case> condition in turn. These conditions are logical expressions in the scripting language of the containing <process> element. If any expression evaluates to the integer value 1 (true), then the contents of the corresponding <case> element are executed; otherwise, the expression for the next <case> element is evaluated.

If no <case> condition is true, the contents of the <default> element are executed.

As soon as one of <case> elements is executed, execution control leaves the surrounding <switch> statement. If no <case> condition matches, control leaves the <switch> after the <default> activity executes.

Activities within a <case> element can be any BPL activity, including <assign> elements as in the example below:

<switch name='Approved?'>
  <case name='No PrimeRate' condition='context.PrimeRate=""'>
    <assign name='Not Approved' property="response.IsApproved" value="0"/>
  </case>
  <case name='No Credit' condition='context.CreditRating=""'>
    <assign name='Not Approved' property="response.IsApproved" value="0"/>
  </case>
  <default name='Approved' >
    <assign name='Approved' property="response.IsApproved" value="1"/>
    <assign name='InterestRate'
            property="response.InterestRate"
            value="context.PrimeRate+10+(99*(1-(context.CreditRating/100)))">
      <annotation>
        <![CDATA[Copy InterestRate into response object.]]>
      </annotation>
    </assign>
  </default>
</switch>