[drools-user] How to Fire a Specified Rules from Another Rule!!

[Niyas]

I am using Drool 3.0 in Eclipse IDE

I want to know whether it's possible to fire specified rule from
another rule. For ex: I am having from Rule 1 to Rule 10.. I want Rule
1 to be fired first..for that I will use salience..no problem in it..
If Rule 1 fired, then Rule 3 should be fired(selective rule should be
fired)

Whether Agenda-group is used for this thing?? I have got one example
from mail-archieve, which is written by Mark Proctor. In that example
assertEquals() method shows error (The method assertEquals(int,int) is
undefined for the type Cheese) in my eclipse IDE ..the links is from
http://www.mail-archive.com/dev@drools.codehaus.org/msg00404.html

And also, Whether some options in Drools2.x will support in
Drools3.0.. mean to say whether Drools is providing upward
compatability??

public void testAgendaGroups() throws Exception {
      PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader(
getClass().getResourceAsStream( "test_AgendaGroups.drl" ) ) );
      Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
      ruleBase.addPackage( pkg );
      WorkingMemory workingMemory = ruleBase.newWorkingMemory();
List list = new ArrayList(); workingMemory.setGlobal( "list", list );
Cheese brie = new Cheese( "brie", 12 ); workingMemory.assertObject(
brie ); workingMemory.fireAllRules(); assertEquals( 7, list.size() );
assertEquals( "group3", list.get( 0 ) );
      assertEquals( "group4", list.get( 1 ) );
      assertEquals( "group3", list.get( 2 ) );
      assertEquals( "MAIN", list.get( 3 ) );
      assertEquals( "group1", list.get( 4 ) );
      assertEquals( "group1", list.get( 5 ) );
assertEquals( "MAIN", list.get( 6 ) ); }
-----------------------------------------

package org.drools.test;

import org.drools.Cheese;

global java.util.List list;

rule "test MAIN 1"
  salience  10
  when
      Cheese( )
  then
      list.add( "MAIN" );
      drools.setFocus( "group1" );
end

rule "test MAIN 2"
  when
      Cheese( )
  then
      list.add( "MAIN" );
end

rule "test group1 1"
  agenda-group "group1"
  when
      Cheese( )
  then
      list.add( "group1" );
end
rule "test group1 2"
  agenda-group "group1"
  when
      Cheese( )
  then
      list.add( "group1" );
end
rule "test group2"
  agenda-group "group2"
  when
      Cheese( )
  then
      list.add( "group2" );
end
rule "test group3 1"
  salience 5
  agenda-group "group3"
  auto-focus true
when
      Cheese( )
then list.add( "group3" ); drools.setFocus( "group4" ); end
rule "test group3 2"
  agenda-group "group3"
  when
      Cheese( )
  then
      list.add( "group3" );
end
rule "test group4"
  agenda-group "group4"
  when
      Cheese( )
  then
      list.add( "group4" );
end

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