General Structure of an html page

Some plain static text

some text
some more text

Data island1 with dynamic text

addtional text {{key1}} dddd {{key2}}
some more text

Loop worth of data to populate a table

<table>
<tr>header row</tr>
<!--RLF_TAG BGN_LOOP table1 -->
<tr><td>{{col1}}</td><td>{{col2}}</td>
<!--RLF_TAG END_LOOP table1 -->
</table>

Loop worth of data to populate a running list

<ul>
<!--RLF_TAG BGN_LOOP list1 -->
<li>{{col1}}</li>
<!--RLF_TAG END_LOOP list1 -->
</ul>

Another data island

addtional text {{key3}} dddd {{key4}}
some more text

Intended data model

key1
key2
key3
key4
<loop name="table1">
   <row>col1, col2</row>
   <row>col1, col2</row>
</loop>   
<loop name="list1">
	<row>col1,col2</row>
	<row>col1, col2</row>
</loop>

Data definition

<request name="page1-data">
   <main>page1-main-data</main>
   <table1>page1-table1-data</table1>
   <list1>page1-list1-data</list1>
</request>

<request name="page1-main-data">
	<classname>com.ai.db.DBRequestExecutor2</classname>
	<db>my-database</db>
	<stmt>select *</stmt>
</request>

<request name="page1-table1-data">
	<classname>com.ai.db.DBRequestExecutor2</classname>
	<db>my-database</db>
	<stmt>select * from t1 where key1, key2</stmt>
</request>

<request name="page1-list1-data">
	<classname>com.ai.db.DBRequestExecutor2</classname>
	<db>my-database</db>
	<stmt>select * from t2 where key3, key4</stmt>
</request>

Jsp page

Ihds pageData = request.getAttribute("Aspire-dataset");
String key1=pageData.getValue("key1");
String key2=pageData.getValue("key2");

Ihds table1Data = pageData.getLoopData("table1");
for(table1Data.moveToFirst();table1Data.isNotAtTheEnd();table1Data.moveToNext())
{
	String col1 = table1Data.getValue("col1");
	String col2 = table1Data.getValue("col2");
}  

Ihds list1Data = pageData.getLoopData("list1");
for(list1Data.moveToFirst();list1Data.isNotAtTheEnd();list1Data.moveToNext())
{
	String col1 = table1Data.getValue("col1");
	String col2 = table1Data.getValue("col2");
}  
ihds.close();

Jsp page with typed binding

Define a class for this page

public class ThisPage
{
	String key1, key2, key3, key4;
	
	//List of typed ThisTableData
	List table1Data;
	
	//List of typed ThisList1Data 
	List list1Data;
}
public class ThisTable1Data
{
	String col1, col2;
}

public class ThisList1Data
{
	String col1, col2;
}

Use the class to bind to the data and paint

Ihds pageData = request.getAttribute("Aspire-dataset");
ThisPage tpd = Utils.bind(pageData, new ThisPage());

String key1=tpd.key1;
String key2=tpd.key2;

List table1Data = tpd.tableData;
Iterator itr = table1Data.getIterator();
while(itr.hasNoMoreRows())
{
	ThisTable1Data row = itr.nextElement();
	String col1 = row.col1;
	String col2 = row.col2;
}
  
List list1Data = tpd.list1Data;
Iterator itr = list1Data.getIterator();
while(itr.hasNoMoreRows())
{
	ThisList1Data row = itr.nextElement();
	String col1 = row.col1;
	String col2 = row.col2;
}  

XSLT page

some text
some more text

addtional text <xsl:value-of select="AspireDataSet/key1"/> 
dddd <xsl:value-of select="AspireDataSet/key2"/>
some more text


<table>
<tr>header row</tr>
<xsl:for-each select="AspireDataSet/tabl1data"/>
<tr><td>{{col1}}</td><td>{{col2}}</td>
</xsl:for-each>
</table>

<ul>
<xsl:for-each select="AspireDataSet/tabl1data"/>
<li>{{col1}}</li>
</xsl:for-each>
</ul>

<p><b>Another data island</b></p>
addtional text 
<xsl:value-of select="key3"/> 
dddd 
<xsl:value-of select="key4"/>
some more text

References

1. General Introduction to other Server side Patterns in this series

2. OSCON 2004 Summary page for Server side patterns session

3. Pluggable Transformations Pattern: Code Examples.

4. Generic Transformations Pattern: Code Examples.