7:57 p.m.
Newline in eval expression causes NullPointerException
------------------------------------------------------
Key: JBRULES-1591
URL: http://jira.jboss.com/jira/browse/JBRULES-1591
Project: JBoss Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Affects Versions: 4.0.7
Reporter: Brian Stiles
Assigned To: Mark Proctor
If a newline splits an eval expression, an NPE is thrown at
org.drools.rule.PredicateConstraint.createContextEntry(PredicateConstraint.java:201).
The following code demonstrates the problem. Removing the newline from the eval
expression solves the problem.
--
package sample;
import java.io.StringReader;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class ExpressionProblem {
public static class Tester {
public boolean test(Object o1, Object o2) {
return o1.equals(o2);
}
}
public static void main(String[] args) throws Exception {
final PackageBuilderConfiguration packageBuilderConfiguration =
new PackageBuilderConfiguration();
final PackageBuilder packageBuilder = new
PackageBuilder(packageBuilderConfiguration);
packageBuilder.addPackageFromDrl(new StringReader("\n"
+ "package sample\n"
+ "\n"
+ "import sample.ExpressionProblem.Tester;\n"
+ "global sample.ExpressionProblem.Tester tester;\n"
+ "\n"
+ "rule MyRule\n"
+ "\n"
+ " when\n"
+ " Integer($f : this, eval(tester.test($f,\n" //
OFFENDING NEWLINE
+ " $f)))\n"
+ " then \n"
+ " System.out.println($f);\n"
+ "end \n"
+ ""));
final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration();
final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration);
ruleBase.addPackage(packageBuilder.getPackage());
final StatefulSession session = ruleBase.newStatefulSession(false);
session.setGlobal("tester", new Tester());
session.insert(1);
session.fireAllRules();
}
}
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8:43 p.m.
New subject: [JBoss JIRA] Commented: (JBRULES-1591) Newline in eval expression causes NullPointerException
[ http://jira.jboss.com/jira/browse/JBRULES-1591?page=comments#action_12410994 ]
Brian Stiles commented on JBRULES-1591:
---------------------------------------
By the way, this seems to be new since 4.0.5.
Newline in eval expression causes NullPointerException
------------------------------------------------------
Key: JBRULES-1591
URL: http://jira.jboss.com/jira/browse/JBRULES-1591
Project: JBoss Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 4.0.7
Reporter: Brian Stiles
Assigned To: Mark Proctor
If a newline splits an eval expression, an NPE is thrown at
org.drools.rule.PredicateConstraint.createContextEntry(PredicateConstraint.java:201).
The following code demonstrates the problem. Removing the newline from the eval
expression solves the problem.
--
package sample;
import java.io.StringReader;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class ExpressionProblem {
public static class Tester {
public boolean test(Object o1, Object o2) {
return o1.equals(o2);
}
}
public static void main(String[] args) throws Exception {
final PackageBuilderConfiguration packageBuilderConfiguration =
new PackageBuilderConfiguration();
final PackageBuilder packageBuilder = new
PackageBuilder(packageBuilderConfiguration);
packageBuilder.addPackageFromDrl(new StringReader("\n"
+ "package sample\n"
+ "\n"
+ "import sample.ExpressionProblem.Tester;\n"
+ "global sample.ExpressionProblem.Tester tester;\n"
+ "\n"
+ "rule MyRule\n"
+ "\n"
+ " when\n"
+ " Integer($f : this, eval(tester.test($f,\n" //
OFFENDING NEWLINE
+ " $f)))\n"
+ " then \n"
+ " System.out.println($f);\n"
+ "end \n"
+ ""));
final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration();
final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration);
ruleBase.addPackage(packageBuilder.getPackage());
final StatefulSession session = ruleBase.newStatefulSession(false);
session.setGlobal("tester", new Tester());
session.insert(1);
session.fireAllRules();
}
}
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3:42 p.m.
New subject: [JBoss JIRA] Updated: (JBRULES-1591) Newline in eval expression causes NullPointerException
[ http://jira.jboss.com/jira/browse/JBRULES-1591?page=all ]
Mark Proctor updated JBRULES-1591:
----------------------------------
Fix Version/s: 5.0.0-M1
Assignee: Edson Tirelli (was: Mark Proctor)
Newline in eval expression causes NullPointerException
------------------------------------------------------
Key: JBRULES-1591
URL: http://jira.jboss.com/jira/browse/JBRULES-1591
Project: JBoss Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 4.0.7
Reporter: Brian Stiles
Assigned To: Edson Tirelli
Fix For: 5.0.0-M1
If a newline splits an eval expression, an NPE is thrown at
org.drools.rule.PredicateConstraint.createContextEntry(PredicateConstraint.java:201).
The following code demonstrates the problem. Removing the newline from the eval
expression solves the problem.
--
package sample;
import java.io.StringReader;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class ExpressionProblem {
public static class Tester {
public boolean test(Object o1, Object o2) {
return o1.equals(o2);
}
}
public static void main(String[] args) throws Exception {
final PackageBuilderConfiguration packageBuilderConfiguration =
new PackageBuilderConfiguration();
final PackageBuilder packageBuilder = new
PackageBuilder(packageBuilderConfiguration);
packageBuilder.addPackageFromDrl(new StringReader("\n"
+ "package sample\n"
+ "\n"
+ "import sample.ExpressionProblem.Tester;\n"
+ "global sample.ExpressionProblem.Tester tester;\n"
+ "\n"
+ "rule MyRule\n"
+ "\n"
+ " when\n"
+ " Integer($f : this, eval(tester.test($f,\n" //
OFFENDING NEWLINE
+ " $f)))\n"
+ " then \n"
+ " System.out.println($f);\n"
+ "end \n"
+ ""));
final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration();
final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration);
ruleBase.addPackage(packageBuilder.getPackage());
final StatefulSession session = ruleBase.newStatefulSession(false);
session.setGlobal("tester", new Tester());
session.insert(1);
session.fireAllRules();
}
}
--
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2:20 a.m.
New subject: [JBoss JIRA] Updated: (JBRULES-1591) Newline in eval expression causes NullPointerException
[
https://jira.jboss.org/jira/browse/JBRULES-1591?page=com.atlassian.jira.p...
]
Mark Proctor updated JBRULES-1591:
----------------------------------
Fix Version/s: 5.0.0.M2
(was: 5.0.0.M1)
Newline in eval expression causes NullPointerException
------------------------------------------------------
Key: JBRULES-1591
URL: https://jira.jboss.org/jira/browse/JBRULES-1591
Project: JBoss Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 4.0.7
Reporter: Brian Stiles
Assignee: Edson Tirelli
Fix For: 5.0.0.M2
If a newline splits an eval expression, an NPE is thrown at
org.drools.rule.PredicateConstraint.createContextEntry(PredicateConstraint.java:201).
The following code demonstrates the problem. Removing the newline from the eval
expression solves the problem.
--
package sample;
import java.io.StringReader;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class ExpressionProblem {
public static class Tester {
public boolean test(Object o1, Object o2) {
return o1.equals(o2);
}
}
public static void main(String[] args) throws Exception {
final PackageBuilderConfiguration packageBuilderConfiguration =
new PackageBuilderConfiguration();
final PackageBuilder packageBuilder = new
PackageBuilder(packageBuilderConfiguration);
packageBuilder.addPackageFromDrl(new StringReader("\n"
+ "package sample\n"
+ "\n"
+ "import sample.ExpressionProblem.Tester;\n"
+ "global sample.ExpressionProblem.Tester tester;\n"
+ "\n"
+ "rule MyRule\n"
+ "\n"
+ " when\n"
+ " Integer($f : this, eval(tester.test($f,\n" //
OFFENDING NEWLINE
+ " $f)))\n"
+ " then \n"
+ " System.out.println($f);\n"
+ "end \n"
+ ""));
final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration();
final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration);
ruleBase.addPackage(packageBuilder.getPackage());
final StatefulSession session = ruleBase.newStatefulSession(false);
session.setGlobal("tester", new Tester());
session.insert(1);
session.fireAllRules();
}
}
--
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4:26 p.m.
New subject: [JBoss JIRA] Commented: (JBRULES-1591) Newline in eval expression causes NullPointerException
[
https://jira.jboss.org/jira/browse/JBRULES-1591?page=com.atlassian.jira.p...
]
Julien Kronegg commented on JBRULES-1591:
-----------------------------------------
It seems that parsing does not support escape characters very well: another guy found
problems on the same code line on \" character
http://www.nabble.com/problem-escaping-quote-in-eval.-td19254011.html
Newline in eval expression causes NullPointerException
------------------------------------------------------
Key: JBRULES-1591
URL: https://jira.jboss.org/jira/browse/JBRULES-1591
Project: JBoss Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 4.0.7
Reporter: Brian Stiles
Assignee: Edson Tirelli
Fix For: 5.0.0.M2
If a newline splits an eval expression, an NPE is thrown at
org.drools.rule.PredicateConstraint.createContextEntry(PredicateConstraint.java:201).
The following code demonstrates the problem. Removing the newline from the eval
expression solves the problem.
--
package sample;
import java.io.StringReader;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class ExpressionProblem {
public static class Tester {
public boolean test(Object o1, Object o2) {
return o1.equals(o2);
}
}
public static void main(String[] args) throws Exception {
final PackageBuilderConfiguration packageBuilderConfiguration =
new PackageBuilderConfiguration();
final PackageBuilder packageBuilder = new
PackageBuilder(packageBuilderConfiguration);
packageBuilder.addPackageFromDrl(new StringReader("\n"
+ "package sample\n"
+ "\n"
+ "import sample.ExpressionProblem.Tester;\n"
+ "global sample.ExpressionProblem.Tester tester;\n"
+ "\n"
+ "rule MyRule\n"
+ "\n"
+ " when\n"
+ " Integer($f : this, eval(tester.test($f,\n" //
OFFENDING NEWLINE
+ " $f)))\n"
+ " then \n"
+ " System.out.println($f);\n"
+ "end \n"
+ ""));
final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration();
final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration);
ruleBase.addPackage(packageBuilder.getPackage());
final StatefulSession session = ruleBase.newStatefulSession(false);
session.setGlobal("tester", new Tester());
session.insert(1);
session.fireAllRules();
}
}
--
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8:50 p.m.
New subject: [JBoss JIRA] Commented: (JBRULES-1591) Newline in eval expression causes NullPointerException
[
https://jira.jboss.org/jira/browse/JBRULES-1591?page=com.atlassian.jira.p...
]
Julien Kronegg commented on JBRULES-1591:
-----------------------------------------
We had the same exception by using an eval() written on more than one line, such as:
eval (
obj.isA() ||
obj.isB() ||
obj.isC()
)
The workaround was to write the eval() on one line:
eval ( obj.isA() || obj.isB() || obj.isC() )
But this is not really a good solution from the readability/maintenance viewpoint.
Newline in eval expression causes NullPointerException
------------------------------------------------------
Key: JBRULES-1591
URL: https://jira.jboss.org/jira/browse/JBRULES-1591
Project: JBoss Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 4.0.7
Reporter: Brian Stiles
Assignee: Edson Tirelli
Fix For: 5.0.0.M2
If a newline splits an eval expression, an NPE is thrown at
org.drools.rule.PredicateConstraint.createContextEntry(PredicateConstraint.java:201).
The following code demonstrates the problem. Removing the newline from the eval
expression solves the problem.
--
package sample;
import java.io.StringReader;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class ExpressionProblem {
public static class Tester {
public boolean test(Object o1, Object o2) {
return o1.equals(o2);
}
}
public static void main(String[] args) throws Exception {
final PackageBuilderConfiguration packageBuilderConfiguration =
new PackageBuilderConfiguration();
final PackageBuilder packageBuilder = new
PackageBuilder(packageBuilderConfiguration);
packageBuilder.addPackageFromDrl(new StringReader("\n"
+ "package sample\n"
+ "\n"
+ "import sample.ExpressionProblem.Tester;\n"
+ "global sample.ExpressionProblem.Tester tester;\n"
+ "\n"
+ "rule MyRule\n"
+ "\n"
+ " when\n"
+ " Integer($f : this, eval(tester.test($f,\n" //
OFFENDING NEWLINE
+ " $f)))\n"
+ " then \n"
+ " System.out.println($f);\n"
+ "end \n"
+ ""));
final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration();
final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration);
ruleBase.addPackage(packageBuilder.getPackage());
final StatefulSession session = ruleBase.newStatefulSession(false);
session.setGlobal("tester", new Tester());
session.insert(1);
session.fireAllRules();
}
}
--
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2:34 a.m.
New subject: [JBoss JIRA] Updated: (JBRULES-1591) Newline in eval expression causes NullPointerException
[
https://jira.jboss.org/jira/browse/JBRULES-1591?page=com.atlassian.jira.p...
]
Mark Proctor updated JBRULES-1591:
----------------------------------
Fix Version/s: 5.0.0.M3
(was: 5.0.0.M2)
Newline in eval expression causes NullPointerException
------------------------------------------------------
Key: JBRULES-1591
URL: https://jira.jboss.org/jira/browse/JBRULES-1591
Project: JBoss Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 4.0.7
Reporter: Brian Stiles
Assignee: Edson Tirelli
Fix For: 5.0.0.M3
If a newline splits an eval expression, an NPE is thrown at
org.drools.rule.PredicateConstraint.createContextEntry(PredicateConstraint.java:201).
The following code demonstrates the problem. Removing the newline from the eval
expression solves the problem.
--
package sample;
import java.io.StringReader;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class ExpressionProblem {
public static class Tester {
public boolean test(Object o1, Object o2) {
return o1.equals(o2);
}
}
public static void main(String[] args) throws Exception {
final PackageBuilderConfiguration packageBuilderConfiguration =
new PackageBuilderConfiguration();
final PackageBuilder packageBuilder = new
PackageBuilder(packageBuilderConfiguration);
packageBuilder.addPackageFromDrl(new StringReader("\n"
+ "package sample\n"
+ "\n"
+ "import sample.ExpressionProblem.Tester;\n"
+ "global sample.ExpressionProblem.Tester tester;\n"
+ "\n"
+ "rule MyRule\n"
+ "\n"
+ " when\n"
+ " Integer($f : this, eval(tester.test($f,\n" //
OFFENDING NEWLINE
+ " $f)))\n"
+ " then \n"
+ " System.out.println($f);\n"
+ "end \n"
+ ""));
final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration();
final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration);
ruleBase.addPackage(packageBuilder.getPackage());
final StatefulSession session = ruleBase.newStatefulSession(false);
session.setGlobal("tester", new Tester());
session.insert(1);
session.fireAllRules();
}
}
--
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4:51 p.m.
New subject: [JBoss JIRA] Updated: (JBRULES-1591) Newline in eval expression causes NullPointerException
[
https://jira.jboss.org/jira/browse/JBRULES-1591?page=com.atlassian.jira.p...
]
Edson Tirelli updated JBRULES-1591:
-----------------------------------
Fix Version/s: 5.0.0.CR1
(was: 5.0.0.M3)
Newline in eval expression causes NullPointerException
------------------------------------------------------
Key: JBRULES-1591
URL: https://jira.jboss.org/jira/browse/JBRULES-1591
Project: JBoss Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 4.0.7
Reporter: Brian Stiles
Assignee: Edson Tirelli
Fix For: 5.0.0.CR1
If a newline splits an eval expression, an NPE is thrown at
org.drools.rule.PredicateConstraint.createContextEntry(PredicateConstraint.java:201).
The following code demonstrates the problem. Removing the newline from the eval
expression solves the problem.
--
package sample;
import java.io.StringReader;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class ExpressionProblem {
public static class Tester {
public boolean test(Object o1, Object o2) {
return o1.equals(o2);
}
}
public static void main(String[] args) throws Exception {
final PackageBuilderConfiguration packageBuilderConfiguration =
new PackageBuilderConfiguration();
final PackageBuilder packageBuilder = new
PackageBuilder(packageBuilderConfiguration);
packageBuilder.addPackageFromDrl(new StringReader("\n"
+ "package sample\n"
+ "\n"
+ "import sample.ExpressionProblem.Tester;\n"
+ "global sample.ExpressionProblem.Tester tester;\n"
+ "\n"
+ "rule MyRule\n"
+ "\n"
+ " when\n"
+ " Integer($f : this, eval(tester.test($f,\n" //
OFFENDING NEWLINE
+ " $f)))\n"
+ " then \n"
+ " System.out.println($f);\n"
+ "end \n"
+ ""));
final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration();
final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration);
ruleBase.addPackage(packageBuilder.getPackage());
final StatefulSession session = ruleBase.newStatefulSession(false);
session.setGlobal("tester", new Tester());
session.insert(1);
session.fireAllRules();
}
}
--
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4:32 a.m.
New subject: [JBoss JIRA] Updated: (JBRULES-1591) Newline in eval expression causes NullPointerException
[
https://jira.jboss.org/jira/browse/JBRULES-1591?page=com.atlassian.jira.p...
]
Mark Proctor updated JBRULES-1591:
----------------------------------
Fix Version/s: 5.0.0.CR1
(was: 5.0.0.M5)
Newline in eval expression causes NullPointerException
------------------------------------------------------
Key: JBRULES-1591
URL: https://jira.jboss.org/jira/browse/JBRULES-1591
Project: JBoss Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 4.0.7
Reporter: Brian Stiles
Assignee: Edson Tirelli
Fix For: 5.0.0.CR1
If a newline splits an eval expression, an NPE is thrown at
org.drools.rule.PredicateConstraint.createContextEntry(PredicateConstraint.java:201).
The following code demonstrates the problem. Removing the newline from the eval
expression solves the problem.
--
package sample;
import java.io.StringReader;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class ExpressionProblem {
public static class Tester {
public boolean test(Object o1, Object o2) {
return o1.equals(o2);
}
}
public static void main(String[] args) throws Exception {
final PackageBuilderConfiguration packageBuilderConfiguration =
new PackageBuilderConfiguration();
final PackageBuilder packageBuilder = new
PackageBuilder(packageBuilderConfiguration);
packageBuilder.addPackageFromDrl(new StringReader("\n"
+ "package sample\n"
+ "\n"
+ "import sample.ExpressionProblem.Tester;\n"
+ "global sample.ExpressionProblem.Tester tester;\n"
+ "\n"
+ "rule MyRule\n"
+ "\n"
+ " when\n"
+ " Integer($f : this, eval(tester.test($f,\n" //
OFFENDING NEWLINE
+ " $f)))\n"
+ " then \n"
+ " System.out.println($f);\n"
+ "end \n"
+ ""));
final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration();
final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration);
ruleBase.addPackage(packageBuilder.getPackage());
final StatefulSession session = ruleBase.newStatefulSession(false);
session.setGlobal("tester", new Tester());
session.insert(1);
session.fireAllRules();
}
}
--
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5:45 p.m.
New subject: [JBoss JIRA] Closed: (JBRULES-1591) Newline in eval expression causes NullPointerException
[
https://jira.jboss.org/jira/browse/JBRULES-1591?page=com.atlassian.jira.p...
]
Edson Tirelli closed JBRULES-1591.
----------------------------------
Resolution: Done
This is fixed with the use of the new parser. I added a test case anyway. If you still see
the problem with Drools 5 CR1 or later version, please re-open the ticket.
Thanks for reporting.
Edson
Newline in eval expression causes NullPointerException
------------------------------------------------------
Key: JBRULES-1591
URL: https://jira.jboss.org/jira/browse/JBRULES-1591
Project: JBoss Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 4.0.7
Reporter: Brian Stiles
Assignee: Edson Tirelli
Fix For: 5.0.0.CR1
If a newline splits an eval expression, an NPE is thrown at
org.drools.rule.PredicateConstraint.createContextEntry(PredicateConstraint.java:201).
The following code demonstrates the problem. Removing the newline from the eval
expression solves the problem.
--
package sample;
import java.io.StringReader;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class ExpressionProblem {
public static class Tester {
public boolean test(Object o1, Object o2) {
return o1.equals(o2);
}
}
public static void main(String[] args) throws Exception {
final PackageBuilderConfiguration packageBuilderConfiguration =
new PackageBuilderConfiguration();
final PackageBuilder packageBuilder = new
PackageBuilder(packageBuilderConfiguration);
packageBuilder.addPackageFromDrl(new StringReader("\n"
+ "package sample\n"
+ "\n"
+ "import sample.ExpressionProblem.Tester;\n"
+ "global sample.ExpressionProblem.Tester tester;\n"
+ "\n"
+ "rule MyRule\n"
+ "\n"
+ " when\n"
+ " Integer($f : this, eval(tester.test($f,\n" //
OFFENDING NEWLINE
+ " $f)))\n"
+ " then \n"
+ " System.out.println($f);\n"
+ "end \n"
+ ""));
final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration();
final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration);
ruleBase.addPackage(packageBuilder.getPackage());
final StatefulSession session = ruleBase.newStatefulSession(false);
session.setGlobal("tester", new Tester());
session.insert(1);
session.fireAllRules();
}
}
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5783
days inactive
6095
days old
9 comments
4 participants
participants (4)
-
Brian Stiles (JIRA) -
Edson Tirelli (JIRA)
-
Julien Kronegg (JIRA)
-
Mark Proctor (JIRA)