On Mon, Oct 25, 2010 at 11:19 AM, Kevin Connor Arpe <kevina...@gmail.com> wrote: > I wrote a StackOverflow.com post, but was unable to get help on this issue.
SO is great, but the official user and dev lists is the best place to ask Ant questions. > <?xml version="1.0" encoding="UTF-8"?> > <project name="MyTask" basedir="." default="init"> > <target name="init" > description="test the custom task" > > > <taskdef name="CustomTask1" > classname="AntCustomTask1" > classpath="C:\my_custom_ant_task_class_files" > /> > <taskdef name="CustomTask2" > classname="AntCustomTask2" > classpath="C:\my_custom_ant_task_class_files" > /> > <CustomTask1/> > <CustomTask2/> > </target> > </project> > > Do all of the above and you will see "alloc" logged twice. I cannot > get these two custom tasks to share the "big data". Because each is loaded thru a different class loader, and there's a different static member per "independent" class loader. If you are new to Java, class loaders is a very interesting advanced topic to look into btw :) I don't remember the details, but it's likely your two independent <taskdef> that force using separate class loaders. Using either a single taskdef loading a .properties file, or using a classpathref might use the same classloader instead. Also putting your tasks into an AntLib in its own Jar with a proper antlib.xml manifest would also likely use a single class loader. But as Jeffrey wrote, you could have your tasks read/write properties to communicate, or pass them a reference to a datatype instance as well. <mytype id="foo" ... > ... </mytype> <mytask1 mytyperef="foo">...</mytask1> <mytask2 > <mytype ref="foo" /> <!-- or is it idref? I don't recall the naming convention --> ... </mytask2> Trouble is, reference-handling in task is not implicit, you have to manually code it in, and there are many examples in the code. Note the two ways references are passed to tasks typically, via a xyzref attribute, or a nested xyz with only a ref (or idref?) attribute. Hope this help. Sorry my Ant is getting very rusty. --DD --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@ant.apache.org For additional commands, e-mail: dev-h...@ant.apache.org
