Module: Cache

Defined in:
lib/RubyExt/Cache.rb

Constant Summary collapse

DISABLED = 
false

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.monitor ⇒ Object (readonly)

Returns the value of attribute monitor.



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# File 'lib/RubyExt/Cache.rb', line 76

def monitor
  @monitor
end

Class Method Details

.alias_counter ⇒ Object 



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# File 'lib/RubyExt/Cache.rb', line 19

def alias_counter
  @alias_counter += 1
  return :"m#{@alias_counter}"
end

.cached(*arg) ⇒ Object 



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# File 'lib/RubyExt/Cache.rb', line 24

def cached *arg
  vnames, klass, methods = parse_and_check_arguments *arg
  
  return if DISABLED           
  methods.each do |m|        
    als = (m.to_s =~ /^[_a-zA-Z0-9]+$/) ? m : RubyExt::Cache.alias_counter.to_sym 
    
    klass.class_eval{alias_method :"cached_#{als}", :"#{m}"}
    unless vnames.is_a? Array
      script = Cache["single_version_without_args.txt"].substitute binding         
      @versions[vnames] = 0 unless @versions.include? vnames
    else
      vnames_str = vnames.collect{|vname| "'#{vname}' => nil"}.join(', ')
      script = Cache["multiple_version_without_args.txt"].substitute binding
      vnames.each{|vname| @versions[vname] = 0 unless @versions.include? vname}
    end
    klass.class_eval script, __FILE__, __LINE__               
  end      
end

.cached_with_params(*arg) ⇒ Object 



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# File 'lib/RubyExt/Cache.rb', line 44

def cached_with_params *arg
  vnames, klass, methods = parse_and_check_arguments *arg
  
  return if DISABLED     
  methods.each do |m|
    als = (m.to_s =~ /^[_a-zA-Z0-9]+$/) ? m : RubyExt::Cache.alias_counter
    
    klass.class_eval{alias_method :"cached_#{als}", :"#{m}"}
    unless vnames.is_a? Array
      script = Cache["single_version_with_args.txt"].substitute binding          
      @versions[vnames] = 0 unless @versions.include? vnames
    else
      vnames_str = vnames.collect{|vname| "'#{vname}' => nil"}.join(', ')
      script = Cache["multiple_version_with_args.txt"].substitute binding
      vnames.each{|vname| @versions[vname] = 0 unless @versions.include? vname}
    end
    klass.class_eval script, __FILE__, __LINE__
  end  
end

.update(*names) ⇒ Object 



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# File 'lib/RubyExt/Cache.rb', line 68

def update *names
  names.each do |n| 
    n = n.to_s
    @versions[n] = 0 unless @versions.include? n 
    @versions[n] += 1
  end
end

.version(name) ⇒ Object 



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# File 'lib/RubyExt/Cache.rb', line 64

def version name
  @versions[name]
end