16f6c0aecf
Inline adoc files when they are included exactly once. Also fix language tags because this inlining gives us better information on what language the code is written in.
51 lines
1.2 KiB
Plaintext
51 lines
1.2 KiB
Plaintext
== Why is this an issue?
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For arrays of objects, ``++Arrays.asList(T ... a).stream()++`` and ``++Arrays.stream(array)++`` are basically equivalent in terms of performance. However, for arrays of primitives, using ``++Arrays.asList++`` will force the construction of a list of boxed types, and then use _that_ list as a stream. On the other hand, ``++Arrays.stream++`` uses the appropriate primitive stream type (``++IntStream++``, ``++LongStream++``, ``++DoubleStream++``) when applicable, with much better performance.
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=== Noncompliant code example
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[source,java]
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----
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Arrays.asList("a1", "a2", "b1", "c2", "c1").stream()
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.filter(...)
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.forEach(...);
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Arrays.asList(1, 2, 3, 4).stream() // Noncompliant
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.filter(...)
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.forEach(...);
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----
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=== Compliant solution
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[source,java]
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----
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Arrays.asList("a1", "a2", "b1", "c2", "c1").stream()
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.filter(...)
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.forEach(...);
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int[] intArray = new int[]{1, 2, 3, 4};
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Arrays.stream(intArray)
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.filter(...)
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.forEach(...);
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----
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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=== Message
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Use "Arrays.stream" instead of "Arrays.asList".
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=== Highlighting
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``++Arrays.asList++``
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endif::env-github,rspecator-view[]
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