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Groovy Goodness: Swapping Elements in a Collection

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Groovy Goodness: Swapping Elements in a Collection

· DevOps Zone ·
Free Resource

Read why times series is the fastest growing database category.

Groovy already has so many extra methods for working with collections. If we have to need to swap two elements in a collection we can use the swap method. We provide the two index values of the elements we want to swap and Groovy swaps the elements.

In the following sample we have a simple list and swap all elements by invoking the swap method two times:

def saying = ['Groovy', 'is', 'great']

def yodaSays = saying.swap(2, 1).swap(0, 1)

assert yodaSays.join(' ') == 'great Groovy is'

Written with Groovy 2.4.1.

Learn how to get 20x more performance than Elastic by moving to a Time Series database.

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