Class: Google::Cloud::Bigquery::Job::List

Inherits:
Array
  • Object
show all
Defined in:
lib/google/cloud/bigquery/job/list.rb

Overview

Job::List is a special case Array with additional values.

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#etag ⇒ Object

A hash of this page of results.



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# File 'lib/google/cloud/bigquery/job/list.rb', line 31

def etag
  @etag
end

#token ⇒ Object

If not empty, indicates that there are more records that match the request and this value should be passed to continue.



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# File 'lib/google/cloud/bigquery/job/list.rb', line 28

def token
  @token
end

Instance Method Details

#all(request_limit: nil) {|job| ... } ⇒ Enumerator

Retrieves all jobs by repeatedly loading #next until #next? returns false. Calls the given block once for each job, which is passed as the parameter.

An Enumerator is returned if no block is given.

This method may make several API calls until all jobs are retrieved. Be sure to use as narrow a search criteria as possible. Please use with caution.

Examples:

Iterating each job by passing a block:

require "google/cloud"

gcloud = Google::Cloud.new
bigquery = gcloud.bigquery

bigquery.jobs.all do |job|
  puts job.state
end

Using the enumerator by not passing a block:

require "google/cloud"

gcloud = Google::Cloud.new
bigquery = gcloud.bigquery

all_states = bigquery.jobs.all.map do |job|
  job.state
end

Limit the number of API calls made:

require "google/cloud"

gcloud = Google::Cloud.new
bigquery = gcloud.bigquery

bigquery.jobs.all(request_limit: 10) do |job|
  puts job.state
end

Parameters:

  • request_limit (Integer) —

    The upper limit of API requests to make to load all jobs. Default is no limit.

Yields:

  • (job) —

    The block for accessing each job.

Yield Parameters:

  • job (Job) —

    The job object.

Returns:

  • (Enumerator) 


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# File 'lib/google/cloud/bigquery/job/list.rb', line 129

def all request_limit: nil
  request_limit = request_limit.to_i if request_limit
  unless block_given?
    return enum_for(:all, request_limit: request_limit)
  end
  results = self
  loop do
    results.each { |r| yield r }
    if request_limit
      request_limit -= 1
      break if request_limit < 0
    end
    break unless results.next?
    results = results.next
  end
end

#next ⇒ Job::List

Retrieve the next page of jobs.

Examples:

require "google/cloud"

gcloud = Google::Cloud.new
bigquery = gcloud.bigquery

jobs = bigquery.jobs
if jobs.next?
  next_jobs = jobs.next
end

Returns:



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# File 'lib/google/cloud/bigquery/job/list.rb', line 73

def next
  return nil unless next?
  ensure_service!
  options = { all: @hidden, token: token, max: @max, filter: @filter }
  gapi = @service.list_jobs options
  self.class.from_gapi gapi, @service, @hidden, @max, @filter
end

#next? ⇒ Boolean

Whether there is a next page of jobs.

Examples:

require "google/cloud"

gcloud = Google::Cloud.new
bigquery = gcloud.bigquery

jobs = bigquery.jobs
if jobs.next?
  next_jobs = jobs.next
end

Returns:

  • (Boolean) 


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# File 'lib/google/cloud/bigquery/job/list.rb', line 54

def next?
  !token.nil?
end