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You are using Drools 2.x XML with JBoss Rules 3.0 - the two are very
different, please see the wiki for more details.<br>
<br>
Mark<br>
<a class="moz-txt-link-abbreviated" href="mailto:shilpa.raghavendra@wipro.com">shilpa.raghavendra@wipro.com</a> wrote:
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<p class="MsoNormal" style=""><font color="black" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style=""><font color="black" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">Main</span></font><font
color="black" face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
Class as
follows</span></font></p>
<p class="MsoNormal" style=""><font color="black" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">package
com.sample;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">import
java.io.InputStreamReader;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">import
java.io.Reader;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">import
org.drools.RuleBase;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">import
org.drools.RuleBaseFactory;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">import
org.drools.WorkingMemory;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">import
org.drools.compiler.PackageBuilder;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">import
org.drools.rule.Package;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">/**</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> *
This is a sample file to launch a rule package from a rule
source file.</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> */</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">public
class DroolsTest1 {</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
public static final void main(String[] args) {</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
try {</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//load
up the rulebase</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
RuleBase ruleBase = readRule();</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
WorkingMemory workingMemory = ruleBase.newWorkingMemory();</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//go !</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
Message message = new Message();</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
message.setOp1(2);</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
message.setOp2(2);</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
workingMemory.assertObject( message );</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
workingMemory.fireAllRules(); </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
} catch (Throwable t) {</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
t.printStackTrace();</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
}</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
}</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
/**</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
* Please note that this is the "low
level" rule assembly API.</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
*/</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
private static RuleBase readRule()
throws Exception {</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//read
in the source</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
Reader
source = new InputStreamReader( DroolsTest1.class.getResourceAsStream(
"/Sample1.drl" ) );</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//optionally
read in the DSL (if you are using it).</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//Reader
dsl = new InputStreamReader( DroolsTest.class.getResourceAsStream(
"/mylang.dsl"
) );</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//Use
package builder to build up a rule package.</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//An
alternative lower level class called "DrlParser" can also be used...</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
PackageBuilder
builder = new PackageBuilder();</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//this
wil parse and compile in one step</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//NOTE:
There are 2 methods here, the one argument one is for normal DRL.</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//builder.addPackageFromDrl(
source );</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
builder.addPackageFromXml(
source );</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//Use
the following instead of above if you are using a DSL:</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//builder.addPackageFromDrl(
source, dsl );</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//get
the compiled package (which is serializable)</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
Package
pkg = builder.getPackage();</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
//add
the package to a rulebase (deploy the rule package).</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
RuleBase
ruleBase = RuleBaseFactory.newRuleBase();</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
ruleBase.addPackage(
pkg );</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
return
ruleBase;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
}</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
public static class Message {</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
int
op1 ;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
int
op2;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
/**</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
*
@return the op1</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
*/</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
public
int getOp1() {</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
return
op1;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
}</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
/**</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
*
@param op1 the op1 to set</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
*/</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
public
void setOp1(int op1) {</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
this.op1
= op1;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
}</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
/**</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
*
@return the op2</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
*/</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
public
int getOp2() {</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
return
op2;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
}</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
/**</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
*
@param op2 the op2 to set</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
*/</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
public
void setOp2(int op2) {</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
this.op2
= op2;</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
}</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
}</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">}</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">It’s
in src/ java /com/</span></font> <font color="black" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">com.sample
package</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">The
sample1.drl file in src/</span></font> <font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">rules/Sample.drl
is as follows</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"><?xml
version="1.0"?></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"><rule-set
name="BusinessRulesSample"</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
xmlns=<a class="moz-txt-link-rfc2396E" href="http://drools.org/rules">"http://drools.org/rules"</a></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
xmlns:java=<a class="moz-txt-link-rfc2396E" href="http://drools.org/semantics/java">"http://drools.org/semantics/java"</a></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
xmlns:xs=<a class="moz-txt-link-rfc2396E" href="http://www.w3.org/2001/XMLSchema-instance">"http://www.w3.org/2001/XMLSchema-instance"</a></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
xs:schemaLocation="<a class="moz-txt-link-freetext" href="http://drools.org/rules">http://drools.org/rules</a>
rules.xsd</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<a class="moz-txt-link-freetext" href="http://drools.org/semantics/java">http://drools.org/semantics/java</a> java.xsd"></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<!-- Code for Drools Article (c)www.firstpartners.net
2005 --></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<!-- Import the Java Objects that we refer to in our
rules --> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<java:import>java.lang.Object</java:import></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<java:import>java.lang.String</java:import></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<java:import>com.sample.DroolsTest1.*</java:import></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<java:functions></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
public void printValues(int i, int j)</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
{</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
System.out.println("hi"+i+j);</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
}</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</java:functions></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<!-- Check for XYZ Corp--> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<rule name="XYZCorp" ></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<!-- Parameters we can pass into
the business rule --></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<parameter
identifier="message"></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<class>com.sample.DroolsTest1.Message</class></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</parameter></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<!-- Conditions or 'Left Hand
Side' (LHS) that must be met for business rule to fire --></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<java:condition>message.getOp1()==2</java:condition>
</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
!-- What happens when the business
rule is activated --></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
<java:consequence></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
printValues(message.getOp1(),message.getOp2());</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</java:consequence></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">
</rule></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"></rule-set></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="navy"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: navy;">When
I run the program I will get the following error. If I change
addPackageFromXml
to addPackageFromDrl the error is same . So please help me in this</span></font></p>
<p class="MsoNormal" style=""><font color="black" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style=""><font color="black" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;"> </span></font></p>
<p class="MsoNormal" style=""><font color="black" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: black;">(null:
7, 74): cvc-elt.1: Cannot find the declaration of element
'rule-set'.</span></font></p>
<p class="MsoNormal" style=""><u><font color="navy" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: navy;">org.drools.compiler.DroolsParserException</span></font></u></p>
<p class="MsoNormal" style=""><font color="red" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: red;">
at org.drools.compiler.PackageBuilder.addPackageFromXml(Unknown
Source)</span></font></p>
<p class="MsoNormal" style=""><font color="red" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: red;">
at com.sample.DroolsTest1.readRule(</span></font><u><font color="navy"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: navy;">DroolsTest1.java:55</span></font></u><font
color="red" face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: red;">)</span></font></p>
<p class="MsoNormal" style=""><font color="red" face="Courier New"
size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: red;">
at com.sample.DroolsTest1.main(</span></font><u><font color="navy"
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: navy;">DroolsTest1.java:21</span></font></u><font
color="red" face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New"; color: red;">)</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">Thanks & Regards</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">Shilpa</span></font></p>
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