Module: javajava::util::List

Defined in:
lib/jactive_support/core_ext/to_java_list.rb,
lib/jactive_support/java_ext/list.rb

Constant Summary collapse

FrozenError = 
TypeError

Instance Method Summary collapse

Instance Method Details

#clear ⇒ Object

Raises:



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# File 'lib/jactive_support/java_ext/list.rb', line 59

def clear
  raise FrozenError, "can't modify frozen list" if frozen?
  super
  self
end

#inspect ⇒ Object 



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# File 'lib/jactive_support/java_ext/list.rb', line 10

def inspect
  content = map{|e| e.inspect}.join(', ')
  "JavaList[#{content}]"
end

#iterate ⇒ Object 



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# File 'lib/jactive_support/java_ext/list.rb', line 15

def iterate
  return enum_for(:iterate) unless block_given?
  it = listIterator
  while it.next?
    ob = it.next
    yield(it,ob)
  end
end

#last(*args) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/jactive_support/java_ext/list.rb', line 38

def last(*args)
  raise ArgumentError, "wrong # of arguments(#{args.size} for 1)" if args.size > 1
  if args.size == 1
    n = args.first
    raise TypeError, "Can't convert #{n} into Integer" unless n.respond_to?(:to_int)
    n = n.to_int
    raise TypeError, "#to_int should return Integer" unless n.kind_of?(Integer)
    raise ArgumentError, "negative array size" if n < 0

    it = listIterator(size)
    ret = []
    while n > 0 && it.previous?
      ret.unshift it.previous
      n -= 1
    end
    ret
  elsif size > 0 
    self.get(size-1) 
  end
end

#map! ⇒ Object Also known as: collect!

Raises:



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# File 'lib/jactive_support/java_ext/list.rb', line 24

def map!
  raise FrozenError, "can't modify frozen iterable" if frozen?
  return enum_for(:map!) unless block_given?
  iterate{|it, ob| it.set(yield(ob))}
  self
end

#push(*args) ⇒ Object

Raises:



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# File 'lib/jactive_support/java_ext/list.rb', line 32

def push(*args)
  raise FrozenError, "can't modify frozen iterable" if frozen? && ( RUBY_VERSION >= '1.9' || args.size > 0 )
  args.each{|a| add(a)}
  self
end

#to_java_list ⇒ Object 



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# File 'lib/jactive_support/core_ext/to_java_list.rb', line 8

def to_java_list
  self
end