1. Developing SOA Applications with Oracle SOA Suite
  2. Sharing Functionality Across Service Components
  3. Creating Transformations with the XSLT Map Editor
  4. Editing an XSLT Map in Map View
  5. How to Add an XSLT Statement
  6. How to Add Conditional Processing Using xsl:choose
  7. To add an xsl:choose statement using drag and drop:

To add an xsl:choose statement using drag and drop:

  1. In the Components window, select the XSLT Elements page.

  2. Expand the Flow Control section. You can click the plus sign (+) next to Flow Control to expand the section.

  3. Drag the choose icon to the right side of the target node until you can see the green highlighting, as shown in Figure 41-18.

    Figure 41-18 Dragging the choose Icon to the Target Node

    Description of Figure 41-18 follows
    Description of "Figure 41-18 Dragging the choose Icon to the Target Node"

  4. Drop the choose icon while the green highlighting is visible. An xsl:choose node is added as the parent node of the target node. The xsl:choose node contains a child xsl:when node.

  5. To create the otherwise clause, drag the otherwise icon from the Components Window to the left of the xsl:choose node until you can see the green highlighting, as shown in Figure 41-19.

    Figure 41-19 Dragging the otherwise Icon to the xsl:choose Node

    Description of Figure 41-19 follows
    Description of "Figure 41-19 Dragging the otherwise Icon to the xsl:choose Node"

  6. Drop the otherwise icon while the green highlighting is visible. An xsl:otherwise node is added as the child node of the xsl:choose node.

  7. Map the xsl:when node to the source node whose existence is to be tested. In our current example, you drag a line from the HQAccount node in the source to the xsl:when node in the target.

  8. Map the xsl:when and xsl:otherwise cases. In our current example, you drag a line from the HQAccount/AccountNumber node to the xsl:choose/xsl:when/AccountNumber node. Similarly, you drag a line from the BranchAccount/AccountNumber node to the xsl:choose/xsl:otherwise/AccountNumber node.

    Figure 41-17 shows the completed xsl:choose construct.

When viewed in source view, the xsl:choose statement looks similar to the following: 

<BilledToAccount>
   <xsl:choose>
     <xsl:when test="/ns0:PurchaseOrder/HQAccount">
       <AccountNumber>
         <xsl:value-of select="/ns0:PurchaseOrder/HQAccount/AccountNumber"/>
       </AccountNumber>
     </xsl:when>
     <xsl:otherwise>
       <AccountNumber>
         <xsl:value-of select="/ns0:PurchaseOrder/BranchAccount/AccountNumber"/>
       </AccountNumber>
     </xsl:otherwise>
   </xsl:choose>
</BilledToAccount>