java - passing values from a class to another callable class -

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i have class below code, 

public class doctransformer implements callable<indexabledocument> {      wdoc document;     public doctransformer(map<indexfield, tokenizer> tknizermap, wdoc doc) {         this.document = doc;     }      public indexabledocument call() throws tokenizerexception {         system.out.println("inside doctrans: "+this.document.getid());      }  }

the indexabledocument looks below,

public class indexabledocument {      wdoc doc;     public indexabledocument() {         system.out.println("this inside indexable document");     }      public void addfield(indexfield field, tstream stream) {         //todo: implement method     }      public tokenstream getstream(indexfield key) {         //todo: implement method         return null;     }      public string getdocumentidentifier() {         system.out.println(doc.getid);     }  }

a runner class calls doctransformer. can access wdoc inside doctransformer being called runner class , object passed doctransformer. need access wdoc object inside indexabledocument. how achieve it? please explain if question needs rephrased, new threads.

you can create getter , setter wdoc use exchanger it, , don't forget make wdoc final.

exchanger<wdoc> exchanger = new exchanger<wdoc>(); \\do inside cover thread(mb main class) currentwdoc = exchanger.exchange(doc); \\ inside getter

if nedd wdoc read . can use getter , final field


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