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java Programming Glossary: consumerUse of '? extends ' and '? super ' in Collection generics [duplicate] http://stackoverflow.com/questions/12604477/use-of-extends-and-super-in-collection-generics . If you want your list to accept things from you it's a consumer so you use super . See this answer for more. But what if I have..
How to set output stream to TextArea http://stackoverflow.com/questions/12945537/how-to-set-output-stream-to-textarea buffer private String prefix private Consumer consumer private PrintStream old public StreamCapturer String prefix.. old public StreamCapturer String prefix Consumer consumer PrintStream old this.prefix prefix buffer new StringBuilder.. buffer.append .append prefix .append this.old old this.consumer consumer @Override public void write int b throws IOException..
what is the difference between 'super' and 'extends' in Java Generics [duplicate] http://stackoverflow.com/questions/1910892/what-is-the-difference-between-super-and-extends-in-java-generics parameter is a producer it should be extends T if it's a consumer it has to be super T . Take a look at the Google Collections..
jersey rest web Service with Activemq middleware integration http://stackoverflow.com/questions/19706788/jersey-rest-web-service-with-activemq-middleware-integration producer.send message message null MessageConsumer consumer session.createConsumer destination message TextMessage consumer.receive.. session.createConsumer destination message TextMessage consumer.receive 1000 if message null body message.getText producer.close.. if message null body message.getText producer.close consumer.close session.close connection.close catch Exception e System.out.println..
Producer/Consumer threads using a Queue http://stackoverflow.com/questions/2332537/producer-consumer-threads-using-a-queue each. Main class public class SomeApp private Consumer consumer private Producer producer public static void main String args.. Producer producer public static void main String args consumer new Consumer producer new Producer Consumer class public class.. class Consumer implements Runnable public Consumer Thread consumer new Thread this consumer.start public void run while true ..
http://stackoverflow.com/questions/2723397/java-generics-what-is-pecs want to add things to the collection. Then the list is a consumer so you should use a Collection super Thing . The reasoning here..
Bounding generics with 'super' keyword http://stackoverflow.com/questions/2800369/bounding-generics-with-super-keyword is PECS From Effective Java 2nd Edition producer extends consumer super What is the difference between super and extends in Java..
http://stackoverflow.com/questions/3847162/java-generics-super-keyword because you want to add Number objects to it i.e. it's a consumer of Number and simply a List Number is too restrictive. References.. increase API flexibility PECS stands for producer extends consumer super Related questions Too many to list PECS new Integer 0..
Calling virtual method in base class constructor http://stackoverflow.com/questions/448258/calling-virtual-method-in-base-class-constructor LoadStateCore XElement definition In the first method the consumer of the code can create and initialize the object with one statement.. o new ChildObject definition In the second method the consumer will have to create the object and then load the state ChildObject..
http://stackoverflow.com/questions/490091/java-generics 2 anyway . The most important problem with this is that consumers of your Vector have to know the exact class of its values at.. In cases where the producer of the Vector and the consumer are completely isolated from each other this can be a fatal..
Connection pooling options with JDBC: DBCP vs C3P0 [closed] http://stackoverflow.com/questions/520585/connection-pooling-options-with-jdbc-dbcp-vs-c3p0 broken. Since then we have used C3P0 in 4 major heavy load consumer web apps and have never looked back. UPDATE It turns out that..
How do I copy an object in Java? http://stackoverflow.com/questions/869033/how-do-i-copy-an-object-in-java
How to set output stream to TextArea http://stackoverflow.com/questions/12945537/how-to-set-output-stream-to-textarea me public class CapturePane extends JPanel implements Consumer private JTextArea output public CapturePane setLayout new BorderLayout.. public void run appendText text public interface Consumer public void appendText String text public class StreamCapturer.. private StringBuilder buffer private String prefix private Consumer consumer private PrintStream old public StreamCapturer String..
Producer/Consumer threads using a Queue http://stackoverflow.com/questions/2332537/producer-consumer-threads-using-a-queue Consumer threads using a Queue I'd like to create some sort of Producer.. using a Queue I'd like to create some sort of Producer Consumer threading app. But I'm not sure what the best way to implement.. 4 classes each. Main class public class SomeApp private Consumer consumer private Producer producer public static void main String..
http://stackoverflow.com/questions/2723397/java-generics-what-is-pecs is PECS I came across PECS short for Producer extends and Consumer super while reading up on generics. Can someone explain to me..
What is the difference between <E extends Number> and <Number>? http://stackoverflow.com/questions/2770264/what-is-the-difference-between-e-extends-number-and-number Generics What is PECS This discusses the Producer extends Consumer super principle Effective Java 2nd Edition Item 28 Use bounded..
difference between <? super T> and <? extends T> in Java http://stackoverflow.com/questions/4343202/difference-between-super-t-and-extends-t-in-java a ArrayList Integer . PECS Remember PECS Producer Extends Consumer Super . Producer Extends If you need a List to produce T values.. List extends Integer . But you cannot add to this list. Consumer Super If you need a List to consume T values you want to write..
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