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new b4031098af [incubator-kie-issues-803] Add an explanation of semicolon
as OOPath delimiter in docs (#5829)
b4031098af is described below
commit b4031098afc58aa1105864a990ff734bdfbeca89
Author: Toshiya Kobayashi <[email protected]>
AuthorDate: Mon Apr 8 20:12:12 2024 +0900
[incubator-kie-issues-803] Add an explanation of semicolon as OOPath
delimiter in docs (#5829)
---
.../ROOT/pages/language-reference/_drl-rules.adoc | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git
a/drools-docs/src/modules/ROOT/pages/language-reference/_drl-rules.adoc
b/drools-docs/src/modules/ROOT/pages/language-reference/_drl-rules.adoc
index 7c06016c2d..e1dd56afc1 100644
--- a/drools-docs/src/modules/ROOT/pages/language-reference/_drl-rules.adoc
+++ b/drools-docs/src/modules/ROOT/pages/language-reference/_drl-rules.adoc
@@ -1347,6 +1347,25 @@ You cannot embed a comma operator in a composite
constraint expression, such as
/persons[ ( age > 50 && weight > 80 ) || height > 2 ]
----
+[NOTE]
+====
+When you write multiple OOPath lines
+[source]
+----
+when
+ /persons[ age == "10" ]
+ /addresses[ city == "London" ]
+----
+Before {PRODUCT} 10, they were concatenated to one line `/persons[ age == "10"
]/addresses[ city == "London" ]`. To avoid that, you need to explicitly use a
semicolon `;` to separate the OOPath lines.
+[source]
+----
+when
+ /persons[ age == "10" ];
+ /addresses[ city == "London" ];
+----
+Since {PRODUCT} 10, {PRODUCT} considers the new line as a separator between
OOPath lines. So the semicolon is not required.
+====
+
=== Bound variables in patterns and constraints
You can bind variables to OOPath expressions of patterns and constraints to
refer to matched objects in other portions of a rule. Bound variables can help
you define rules more efficiently or more consistently with how you annotate
facts in your data model.
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