How do I pass argument to a Java 8 Lambda stream function?

Question

I am new to Java 8 Lambda, so I may not be familiar with the correct terminology. Please point me in the right direction and I will make the necessary changes in my question. So here it is:

I have written a java lambda function that does a lot of manipulations, however I am struggling with just one bit.

Code:

 final List<JsonNode> curatedArticles = chubRelatedVideoArticles.stream()
            .filter(this::isValidRelatedVideoArticle)
            .filter(this::dedupeOGArticle)
            .map(this::convertChubRelatedVideosIntoMcsRelatedVideos)
            .collect(Collectors.toList());

Now for all the functions used above it is fine to not pass the param, e.g. as it uses "this". So the function signature is:

private boolean isValidRelatedVideoArticle(final ChubRelatedVideoArticle article)

Now, I would like to pass a string to the dedupeOGArticle along with the "final ChubRelatedVideoArticle article" as well.

Thanks in advance.

JB Nizet · Accepted Answer · 2016-12-05 21:25:14Z

11

Use a lambda:

.filter(article -> this.dedupeOGArticle(article, "some string"))

answered Dec 5, 2016 at 21:25

JB Nizet

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1 Comment

poortechworker Over a year ago

This worked, thank you so much, will mark as answer (Once I am allowed to).

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