Class: Jerbil::JavaTask

Description

Runs a Java program, either in-vm or as separate process (forked or replacing current process).

Example (forked)

    Jerbil::JavaTask.new(:run, "jerbil.sample.Main") do |t|
      t.classpath = CLASSPATH
      t.parameters = [ "--quiet" ]
      t.max_mem = 64
      t.fork = true
      t.depends_on :compile
    end

Example (in-vm)

    Jerbil::JavaTask.new(:run, "jerbil.sample.Main") do |t|
      t.parameters = [ "-foo", "baz" ]
      t.in_vm = true
      t.depends_on :compile
    end

Attributes

NameRead/write?Description
classname RW Class to run
classpath RW
fork RW
in_vm RW
name RW Name for task
parameters RW Program args

Public Class methods

new (name, classname) {|self if block_given?| ...} 

    # File lib/jerbil/java_task.rb, line 41
41:      def initialize(name, classname)
42:         @name = name || classname
43:         @classname = classname
44:         @parameters = []
45:         @classpath = "."              
46:         @in_vm = false
47:         @fork = false   
48:         yield self if block_given?
49:         define
50:      end

Public Instance methods

debug (port=8000, suspend="n")

Runs program in debug mode, listening on port port. 

    # File lib/jerbil/java_task.rb, line 73
73:      def debug(port=8000, suspend="n")
74:         add_extra_args "-Xdebug", "-Xnoagent",
75:           "-Xrunjdwp:transport=dt_socket,address=#{port},server=y,suspend=#{suspend}"
76:      end

logging_conf= (file) 

    # File lib/jerbil/java_task.rb, line 62
62:      def logging_conf=(file)
63:         sys_property("java.util.logging.config.file", file)
64:      end

max_mem= (mem)

The max. amount of memory (in MB) the new Java process is allowed to take. 

    # File lib/jerbil/java_task.rb, line 68
68:      def max_mem=(mem)
69:         add_extra_args "-Xmx#{mem}M"
70:      end

sys_property (name,value)

Adds a system property to the command line. 

    # File lib/jerbil/java_task.rb, line 58
58:      def sys_property(name,value)
59:         add_extra_args "-D#{name}=#{value}"
60:      end