7:50 a.m.
Lubos Pechac created JBRULES-3392:
-------------------------------------
Summary: strict mode evaluation taking interface instead of class
Key: JBRULES-3392
URL: https://issues.jboss.org/browse/JBRULES-3392
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-compiler (expert)
Affects Versions: 5.3.1.Final
Environment: java 1.6.0_29 on windows 7
Reporter: Lubos Pechac
Assignee: Mark Proctor
I am getting a compilation error with my drl, that worked in 5.0.1:
Unable to Analyse Expression las.id == $las.id:
[Error: unable to resolve method using strict-mode: piag.entityinterface.ILink.id()]
[Near : {... las.id == $las.id ....}]
^
[Line: 42, Column: 30] : [Rule name='rule1']
here's the rule:
rule "rule1"
when
$las : Link(name == "GA1")
$pi : PayItem(las.id == $las.id, amount > 0, comparisonType == "ECHT")
then ...
interface ILink is empty:
public interface ILink { }
class Link extends ILink adds a few attributes including id, name, amount,
comparisonType...
interface IPayItem has this getter:
public ILink getLas();
class PayItem overrides this getter:
@Override
public Link getLas() {
return this.las;
}
It seems like drools is incorrectly treating $pi as IPayItem. IPayItem.getLas() returns
ILink which does not have method id(), as the message says. But PayItem.getLas() returns
Link which does have attribute id.
I didn't specify anywhere that $pi is IPayItem so why does it do this?
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5:21 a.m.
[
https://issues.jboss.org/browse/JBRULES-3392?page=com.atlassian.jira.plug...
]
Mario Fusco reassigned JBRULES-3392:
------------------------------------
Assignee: Mario Fusco (was: Mark Proctor)
strict mode evaluation taking interface instead of class
--------------------------------------------------------
Key: JBRULES-3392
URL: https://issues.jboss.org/browse/JBRULES-3392
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-compiler (expert)
Affects Versions: 5.3.1.Final
Environment: java 1.6.0_29 on windows 7
Reporter: Lubos Pechac
Assignee: Mario Fusco
I am getting a compilation error with my drl, that worked in 5.0.1:
Unable to Analyse Expression las.id == $las.id:
[Error: unable to resolve method using strict-mode: piag.entityinterface.ILink.id()]
[Near : {... las.id == $las.id ....}]
^
[Line: 42, Column: 30] : [Rule name='rule1']
here's the rule:
rule "rule1"
when
$las : Link(name == "GA1")
$pi : PayItem(las.id == $las.id, amount > 0, comparisonType == "ECHT")
then ...
interface ILink is empty:
public interface ILink { }
class Link extends ILink adds a few attributes including id, name, amount,
comparisonType...
interface IPayItem has this getter:
public ILink getLas();
class PayItem overrides this getter:
@Override
public Link getLas() {
return this.las;
}
It seems like drools is incorrectly treating $pi as IPayItem. IPayItem.getLas() returns
ILink which does not have method id(), as the message says. But PayItem.getLas() returns
Link which does have attribute id.
I didn't specify anywhere that $pi is IPayItem so why does it do this?
--
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5:51 a.m.
[
https://issues.jboss.org/browse/JBRULES-3392?page=com.atlassian.jira.plug...
]
Mario Fusco resolved JBRULES-3392.
----------------------------------
Fix Version/s: 5.3.2.Final
5.4.0.CR1
Resolution: Cannot Reproduce Bug
I tried the following but I couldn't reproduce the problem.
Am I missing something?
public interface InterfaceA {
InterfaceB getB();
}
public interface InterfaceB { }
public static class ClassA implements InterfaceA {
public ClassB getB() {
return new ClassB();
}
}
public static class ClassB implements InterfaceB {
public String getId() {
return "123";
}
}
@Test
public void testCovariance() throws Exception {
// JBRULES-3392
String str =
"import org.drools.integrationtests.MiscTest.*\n" +
"rule x\n" +
"when\n" +
" $b : ClassB( )\n" +
" $a : ClassA( b.id == $b.id )\n" +
"then\n" +
"end\n";
KnowledgeBase kbase = loadKnowledgeBaseFromString( str );
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ksession.insert(new ClassA());
ksession.insert(new ClassB());
assertEquals(1, ksession.fireAllRules());
}
strict mode evaluation taking interface instead of class
--------------------------------------------------------
Key: JBRULES-3392
URL: https://issues.jboss.org/browse/JBRULES-3392
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-compiler (expert)
Affects Versions: 5.3.1.Final
Environment: java 1.6.0_29 on windows 7
Reporter: Lubos Pechac
Assignee: Mario Fusco
Fix For: 5.3.2.Final, 5.4.0.CR1
I am getting a compilation error with my drl, that worked in 5.0.1:
Unable to Analyse Expression las.id == $las.id:
[Error: unable to resolve method using strict-mode: piag.entityinterface.ILink.id()]
[Near : {... las.id == $las.id ....}]
^
[Line: 42, Column: 30] : [Rule name='rule1']
here's the rule:
rule "rule1"
when
$las : Link(name == "GA1")
$pi : PayItem(las.id == $las.id, amount > 0, comparisonType == "ECHT")
then ...
interface ILink is empty:
public interface ILink { }
class Link extends ILink adds a few attributes including id, name, amount,
comparisonType...
interface IPayItem has this getter:
public ILink getLas();
class PayItem overrides this getter:
@Override
public Link getLas() {
return this.las;
}
It seems like drools is incorrectly treating $pi as IPayItem. IPayItem.getLas() returns
ILink which does not have method id(), as the message says. But PayItem.getLas() returns
Link which does have attribute id.
I didn't specify anywhere that $pi is IPayItem so why does it do this?
--
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5:53 a.m.
[
https://issues.jboss.org/browse/JBRULES-3392?page=com.atlassian.jira.plug...
]
Mario Fusco edited comment on JBRULES-3392 at 3/19/12 6:52 AM:
---------------------------------------------------------------
I tried the following but I couldn't reproduce the problem.
Am I missing something?
public interface InterfaceA {
InterfaceB getB();
}
public interface InterfaceB { }
public static class ClassA implements InterfaceA {
public ClassB getB() {
return new ClassB();
}
}
public static class ClassB implements InterfaceB {
public String getId() {
return "123";
}
}
@Test
public void testCovariance() throws Exception {
// JBRULES-3392
String str =
"import org.drools.integrationtests.MiscTest.*\n" +
"rule x\n" +
"when\n" +
" $b : ClassB( )\n" +
" $a : ClassA( b.id == $b.id )\n" +
"then\n" +
"end\n";
KnowledgeBase kbase = loadKnowledgeBaseFromString( str );
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ksession.insert(new ClassA());
ksession.insert(new ClassB());
assertEquals(1, ksession.fireAllRules());
}
was (Author: mfusco):
I tried the following but I couldn't reproduce the problem.
Am I missing something?
public interface InterfaceA {
InterfaceB getB();
}
public interface InterfaceB { }
public static class ClassA implements InterfaceA {
public ClassB getB() {
return new ClassB();
}
}
public static class ClassB implements InterfaceB {
public String getId() {
return "123";
}
}
@Test
public void testCovariance() throws Exception {
// JBRULES-3392
String str =
"import org.drools.integrationtests.MiscTest.*\n" +
"rule x\n" +
"when\n" +
" $b : ClassB( )\n" +
" $a : ClassA( b.id == $b.id )\n" +
"then\n" +
"end\n";
KnowledgeBase kbase = loadKnowledgeBaseFromString( str );
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ksession.insert(new ClassA());
ksession.insert(new ClassB());
assertEquals(1, ksession.fireAllRules());
}
strict mode evaluation taking interface instead of class
--------------------------------------------------------
Key: JBRULES-3392
URL: https://issues.jboss.org/browse/JBRULES-3392
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-compiler (expert)
Affects Versions: 5.3.1.Final
Environment: java 1.6.0_29 on windows 7
Reporter: Lubos Pechac
Assignee: Mario Fusco
Fix For: 5.3.2.Final, 5.4.0.CR1
I am getting a compilation error with my drl, that worked in 5.0.1:
Unable to Analyse Expression las.id == $las.id:
[Error: unable to resolve method using strict-mode: piag.entityinterface.ILink.id()]
[Near : {... las.id == $las.id ....}]
^
[Line: 42, Column: 30] : [Rule name='rule1']
here's the rule:
rule "rule1"
when
$las : Link(name == "GA1")
$pi : PayItem(las.id == $las.id, amount > 0, comparisonType == "ECHT")
then ...
interface ILink is empty:
public interface ILink { }
class Link extends ILink adds a few attributes including id, name, amount,
comparisonType...
interface IPayItem has this getter:
public ILink getLas();
class PayItem overrides this getter:
@Override
public Link getLas() {
return this.las;
}
It seems like drools is incorrectly treating $pi as IPayItem. IPayItem.getLas() returns
ILink which does not have method id(), as the message says. But PayItem.getLas() returns
Link which does have attribute id.
I didn't specify anywhere that $pi is IPayItem so why does it do this?
--
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7:41 a.m.
[
https://issues.jboss.org/browse/JBRULES-3392?page=com.atlassian.jira.plug...
]
Joerg Woehrle updated JBRULES-3392:
-----------------------------------
Attachment: DroolsTest.zip
Mario, I think I also stumbled upon this. Attached a test case where you can see that mvel
somehow does not respect the covariant return type. Even though DoubleHolder.getValue is
returning Double it complains about the BaseClass' CommonBase.getValue() returning an
Object. The test might not be the most sophisticated one but it shows how this problem
came up in our environment...
strict mode evaluation taking interface instead of class
--------------------------------------------------------
Key: JBRULES-3392
URL: https://issues.jboss.org/browse/JBRULES-3392
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-compiler (expert)
Affects Versions: 5.3.1.Final
Environment: java 1.6.0_29 on windows 7
Reporter: Lubos Pechac
Assignee: Mario Fusco
Fix For: 5.3.2.Final, 5.4.0.CR1
Attachments: DroolsTest.zip
I am getting a compilation error with my drl, that worked in 5.0.1:
Unable to Analyse Expression las.id == $las.id:
[Error: unable to resolve method using strict-mode: piag.entityinterface.ILink.id()]
[Near : {... las.id == $las.id ....}]
^
[Line: 42, Column: 30] : [Rule name='rule1']
here's the rule:
rule "rule1"
when
$las : Link(name == "GA1")
$pi : PayItem(las.id == $las.id, amount > 0, comparisonType == "ECHT")
then ...
interface ILink is empty:
public interface ILink { }
class Link extends ILink adds a few attributes including id, name, amount,
comparisonType...
interface IPayItem has this getter:
public ILink getLas();
class PayItem overrides this getter:
@Override
public Link getLas() {
return this.las;
}
It seems like drools is incorrectly treating $pi as IPayItem. IPayItem.getLas() returns
ILink which does not have method id(), as the message says. But PayItem.getLas() returns
Link which does have attribute id.
I didn't specify anywhere that $pi is IPayItem so why does it do this?
--
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2:17 a.m.
[
https://issues.jboss.org/browse/JBRULES-3392?page=com.atlassian.jira.plug...
]
Mario Fusco reopened JBRULES-3392:
----------------------------------
I've been able to reproduce this problem with java7.
strict mode evaluation taking interface instead of class
--------------------------------------------------------
Key: JBRULES-3392
URL: https://issues.jboss.org/browse/JBRULES-3392
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-compiler (expert)
Affects Versions: 5.3.1.Final
Environment: java 1.6.0_29 on windows 7
Reporter: Lubos Pechac
Assignee: Mario Fusco
Fix For: 5.3.2.Final, 5.4.0.CR1
Attachments: DroolsTest.zip
I am getting a compilation error with my drl, that worked in 5.0.1:
Unable to Analyse Expression las.id == $las.id:
[Error: unable to resolve method using strict-mode: piag.entityinterface.ILink.id()]
[Near : {... las.id == $las.id ....}]
^
[Line: 42, Column: 30] : [Rule name='rule1']
here's the rule:
rule "rule1"
when
$las : Link(name == "GA1")
$pi : PayItem(las.id == $las.id, amount > 0, comparisonType == "ECHT")
then ...
interface ILink is empty:
public interface ILink { }
class Link extends ILink adds a few attributes including id, name, amount,
comparisonType...
interface IPayItem has this getter:
public ILink getLas();
class PayItem overrides this getter:
@Override
public Link getLas() {
return this.las;
}
It seems like drools is incorrectly treating $pi as IPayItem. IPayItem.getLas() returns
ILink which does not have method id(), as the message says. But PayItem.getLas() returns
Link which does have attribute id.
I didn't specify anywhere that $pi is IPayItem so why does it do this?
--
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2:23 a.m.
[
https://issues.jboss.org/browse/JBRULES-3392?page=com.atlassian.jira.plug...
]
Joerg Woehrle commented on JBRULES-3392:
----------------------------------------
Mario, maybe my mailing list entry can give you further information:
http://drools.46999.n3.nabble.com/mvel-strict-mode-not-applied-in-drools-...
strict mode evaluation taking interface instead of class
--------------------------------------------------------
Key: JBRULES-3392
URL: https://issues.jboss.org/browse/JBRULES-3392
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-compiler (expert)
Affects Versions: 5.3.1.Final
Environment: java 1.6.0_29 on windows 7
Reporter: Lubos Pechac
Assignee: Mario Fusco
Fix For: 5.3.2.Final, 5.4.0.CR1
Attachments: DroolsTest.zip
I am getting a compilation error with my drl, that worked in 5.0.1:
Unable to Analyse Expression las.id == $las.id:
[Error: unable to resolve method using strict-mode: piag.entityinterface.ILink.id()]
[Near : {... las.id == $las.id ....}]
^
[Line: 42, Column: 30] : [Rule name='rule1']
here's the rule:
rule "rule1"
when
$las : Link(name == "GA1")
$pi : PayItem(las.id == $las.id, amount > 0, comparisonType == "ECHT")
then ...
interface ILink is empty:
public interface ILink { }
class Link extends ILink adds a few attributes including id, name, amount,
comparisonType...
interface IPayItem has this getter:
public ILink getLas();
class PayItem overrides this getter:
@Override
public Link getLas() {
return this.las;
}
It seems like drools is incorrectly treating $pi as IPayItem. IPayItem.getLas() returns
ILink which does not have method id(), as the message says. But PayItem.getLas() returns
Link which does have attribute id.
I didn't specify anywhere that $pi is IPayItem so why does it do this?
--
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2:36 a.m.
[
https://issues.jboss.org/browse/JBRULES-3392?page=com.atlassian.jira.plug...
]
Toni Rikkola updated JBRULES-3392:
----------------------------------
Fix Version/s: 5.4.0.Final
(was: 5.4.0.CR1)
strict mode evaluation taking interface instead of class
--------------------------------------------------------
Key: JBRULES-3392
URL: https://issues.jboss.org/browse/JBRULES-3392
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-compiler (expert)
Affects Versions: 5.3.1.Final
Environment: java 1.6.0_29 on windows 7
Reporter: Lubos Pechac
Assignee: Mario Fusco
Fix For: 5.3.2.Final, 5.4.0.Final
Attachments: DroolsTest.zip
I am getting a compilation error with my drl, that worked in 5.0.1:
Unable to Analyse Expression las.id == $las.id:
[Error: unable to resolve method using strict-mode: piag.entityinterface.ILink.id()]
[Near : {... las.id == $las.id ....}]
^
[Line: 42, Column: 30] : [Rule name='rule1']
here's the rule:
rule "rule1"
when
$las : Link(name == "GA1")
$pi : PayItem(las.id == $las.id, amount > 0, comparisonType == "ECHT")
then ...
interface ILink is empty:
public interface ILink { }
class Link extends ILink adds a few attributes including id, name, amount,
comparisonType...
interface IPayItem has this getter:
public ILink getLas();
class PayItem overrides this getter:
@Override
public Link getLas() {
return this.las;
}
It seems like drools is incorrectly treating $pi as IPayItem. IPayItem.getLas() returns
ILink which does not have method id(), as the message says. But PayItem.getLas() returns
Link which does have attribute id.
I didn't specify anywhere that $pi is IPayItem so why does it do this?
--
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2:24 a.m.
[
https://issues.jboss.org/browse/JBRULES-3392?page=com.atlassian.jira.plug...
]
Mario Fusco resolved JBRULES-3392.
----------------------------------
Resolution: Done
Fixed in MVEL
strict mode evaluation taking interface instead of class
--------------------------------------------------------
Key: JBRULES-3392
URL: https://issues.jboss.org/browse/JBRULES-3392
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-compiler (expert)
Affects Versions: 5.3.1.Final
Environment: java 1.6.0_29 on windows 7
Reporter: Lubos Pechac
Assignee: Mario Fusco
Fix For: 5.3.2.Final, 5.4.0.Final
Attachments: DroolsTest.zip
I am getting a compilation error with my drl, that worked in 5.0.1:
Unable to Analyse Expression las.id == $las.id:
[Error: unable to resolve method using strict-mode: piag.entityinterface.ILink.id()]
[Near : {... las.id == $las.id ....}]
^
[Line: 42, Column: 30] : [Rule name='rule1']
here's the rule:
rule "rule1"
when
$las : Link(name == "GA1")
$pi : PayItem(las.id == $las.id, amount > 0, comparisonType == "ECHT")
then ...
interface ILink is empty:
public interface ILink { }
class Link extends ILink adds a few attributes including id, name, amount,
comparisonType...
interface IPayItem has this getter:
public ILink getLas();
class PayItem overrides this getter:
@Override
public Link getLas() {
return this.las;
}
It seems like drools is incorrectly treating $pi as IPayItem. IPayItem.getLas() returns
ILink which does not have method id(), as the message says. But PayItem.getLas() returns
Link which does have attribute id.
I didn't specify anywhere that $pi is IPayItem so why does it do this?
--
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5222
days inactive
5278
days old
8 comments
4 participants
participants (4)
-
Joerg Woehrle (JIRA) -
Lubos Pechac (JIRA)
-
Mario Fusco (JIRA)
-
Toni Rikkola (JIRA)