Class: JavaClass::Dsl::CachingClasspath

Inherits:
SimpleDelegator
  • Object
show all
Includes:
ClasspathAnalysers
Defined in:
lib/javaclass/dsl/caching_classpath.rb,
lib/javaclass/dsl/classpath_analysers.rb

Overview

A delegator classpath that caches loaded class files in a map by full qualified class names.

Author

Peter Kofler

Instance Method Summary collapse

Methods included from Analyse::TransitiveDependencies

#transitive_dependencies_package, #transitive_dependency_tree

Methods included from Analyse::Dependencies

#external_types, #types, #used_types, #used_types_map

Constructor Details

#initialize(classpath) ⇒ CachingClasspath

Create a cached instance of the classpath (a LoadingClasspath).



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# File 'lib/javaclass/dsl/caching_classpath.rb', line 11

def initialize(classpath)
  unless classpath.respond_to? :load 
    raise ArgumentError, "wrong type of delegatee #{classpath.class}"
  end
  @classpath = classpath
  @cache = Hash.new # full_name (String) => ClassEntryHeader
  super(classpath)
end

Instance Method Details

#load(classname) ⇒ Object

Ask the cache for the classname and return it. Else delegate loading.



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# File 'lib/javaclass/dsl/caching_classpath.rb', line 21

def load(classname)
  key = classname.to_javaname.full_name
  if !@cache.include?(key)
    @cache[key] = @classpath.load(classname)
  end
  @cache[key]
end

#values(listed = nil, &filter) ⇒ Object

Load listed or all classes. Duplicate method to use the cache of decorator.



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# File 'lib/javaclass/dsl/caching_classpath.rb', line 30

def values(listed=nil, &filter)
  listed ||= names(&filter)
  listed.collect { |name| load(name) }
end