Wrapping chained method calls on a separate line in Eclipse for Java
EclipseLineEclipse Problem Overview
I haven't been successful in figuring out how to wrap each method call in Eclipse
. For example, I have this:
someObject.A().B().C();
But I really want this:
someObject.A()
.B()
.C();
Nothing under the "Line Wrapping" section in Eclipse
seems to give me this result.
Eclipse Solutions
Solution 1 - Eclipse
Complementing Deepak Azad's answer, what you exactly need is the following:
> Windows: Window → Preferences → Java → Code Style
> → Formatter → Edit → Line wrapping (tab)
>
> Mac OS: ADT → Preferences → Java → Code Style
> → Formatter → Edit → Line wrapping (tab)
Then, in the list at the left, select: > Function Calls → Qualified invocations
Now below this list, set Line wrapping policy to: > Wrap all elements, except first element if not necessary
Check: > Force split, even if line shorter than maximum line width
Finally, set Indentation policy to (thanks @Turbo): > Indent on column
It should give you the exact behavior you asked for.
BONUS: Android Studio / IntelliJ Idea:
> Mac OS: Android Studio → Preferences (Cmd +,
) → Editor → Code Style → Java → Wrapping And Braces tab → Chained method calls
select > Wrap always
and check
> Align when multiline
Solution 2 - Eclipse
Window → Preferences → Java → Code Style → Formater → Edit → Line wrapping → Never join already wrapped lines
Solution 3 - Eclipse
Window > Preferences > Java > Code Style > Formater > Edit > Line wrapping > Function Calls, set the 'Line wrapping policy' as 'Wrap all elements, every element on a new line'.
Solution 4 - Eclipse
For those who have eclipse code formatting settings checked into source control (for consistent code formatting across the whole team), the .settings
folder is checked in.
The property that will give you this formatting behavior is in the .settings/org.eclipse.jdt.core.prefs
file.
The property is:
org.eclipse.jdt.core.formatter.alignment_for_selector_in_method_invocation=80
Solution 5 - Eclipse
If you are willing to do the formatting of those segments yourself, you can prevent eclipse from reformatting those segments by using:
// @formatter:off
...
// @formatter:on
You might need to enable this in your preferences: http://archive.eclipse.org/eclipse/downloads/drops/R-3.6-201006080911/eclipse-news-part2.html#JavaFormatter
Solution 6 - Eclipse
in: Window->Preferences->Java->Code Style->Formater->Edit->Line wrapping->Function call-> Qualified invocation
select Indentation policy as indent on column