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Showing content from https://docs.aws.amazon.com/sdkforruby/api/Aws/Resources/Collection.html below:

Collection — AWS SDK for Ruby V2

You are viewing documentation for version 2 of the AWS SDK for Ruby. Version 3 documentation can be found here.

Inherits:

Object

• Object
• Aws::Resources::Collection

show all

Includes:

Enumerable

Defined in:

aws-sdk-resources/lib/aws-sdk-resources/collection.rb

• #each(&block) ⇒ Enumerator<Resource>
• #first(count = 1) ⇒ Resource, Batch

  Returns the first resource from the collection.

• #limit(limit) ⇒ Collection

  Specifies the maximum number of items to enumerate.

This class handles dynamic methods through the method_missing method

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

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# File 'aws-sdk-resources/lib/aws-sdk-resources/collection.rb', line 73

def method_missing(method_name, *args, &block)
  if respond_to?(method_name)
    Batch.validate_batch_args!(args)
    batches.each do |batch|
      batch.send(method_name, *args, &block)
    end
  else
    super
  end
end

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# File 'aws-sdk-resources/lib/aws-sdk-resources/collection.rb', line 16

def each(&block)
  if block_given?
    batches.each { |batch| batch.each(&block) }
  else
    self
  end
end

Returns the first resource from the collection.

resource = collection.first

If you pass a count, then the first count resources are returned in a single batch. See the resource specific batch documentation for a list of supported batch methods.

resources = collection.first(10)
resources.delete

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# File 'aws-sdk-resources/lib/aws-sdk-resources/collection.rb', line 55

def first(count = 1)
  if count == 1
    limit(1).to_a.first
  else
    Batch.new(resource_class, limit(count).to_a)
  end
end

Specifies the maximum number of items to enumerate.

collection.limit(10).each do |resource|
  end

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# File 'aws-sdk-resources/lib/aws-sdk-resources/collection.rb', line 39

def limit(limit)
  self.class.new(@operation, @options.merge(limit: limit))
end

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