Class: Vertx::SharedData

Inherits:
Object
  • Object
show all
Defined in:
src/main/ruby_scripts/core/shared_data.rb

Overview

Sometimes it is desirable to share immutable data between different event loops, for example to implement a cache of data.

This class allows instances of shareddata data structures to be looked up and used from different event loops. The data structures themselves will only allow certain data types to be stored into them. This shields the user from worrying about any thread safety issues might occur if mutable objects were shareddata between event loops.

The following types can be stored in a shareddata data structure:


  String
  FixNum
  Float
  {Buffer} this will be automatically copied, and the copy will be stored in the structure.

Author:

Constant Summary

@@j_sd =
org.vertx.java.deploy.impl.VertxLocator.vertx.sharedData()

Class Method Summary (collapse)

Instance Method Summary (collapse)

Class Method Details

+ (Hash) get_hash(key)

Return a Hash with the specific name. All invocations of this method with the same value of name are guaranteed to return the same Hash instance.

Parameters:

  • key. (String)

    Get the hash with the key.

Returns:

  • (Hash)

    the hash.



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# File 'src/main/ruby_scripts/core/shared_data.rb', line 42

def SharedData.get_hash(key)
  map = @@j_sd.getMap(key)
  SharedHash.new(map)
end

+ (SharedSet) get_set(key)

Return a Set with the specific name. All invocations of this method with the same value of name are guaranteed to return the same Set instance.

Parameters:

  • key. (String)

    Get the set with the key.

Returns:



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# File 'src/main/ruby_scripts/core/shared_data.rb', line 51

def SharedData.get_set(key)
  set = @@j_sd.getSet(key)
  SharedSet.new(set)
end

+ (Object) remove_hash(key)

Remove the hash

Parameters:

  • key. (String)

    The key of the hash.



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# File 'src/main/ruby_scripts/core/shared_data.rb', line 58

def SharedData.remove_hash(key)
  @@j_sd.removeMap(key)
end

+ (Object) remove_set(key)

Remove the set

Parameters:

  • key. (String)

    The key of the set.



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# File 'src/main/ruby_scripts/core/shared_data.rb', line 64

def SharedData.remove_set(key)
  @@j_sd.removeSet(key)
end

Instance Method Details

- (Object) ==(other)



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# File 'src/main/ruby_scripts/core/shared_data.rb', line 102

def ==(other)
  if other.is_a?(SharedHash)
    @hash.equal?(other._to_java_map)
  else
    false
  end
end

- (Object) _to_java_map



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# File 'src/main/ruby_scripts/core/shared_data.rb', line 110

def _to_java_map
  @hash
end