JavaOne 2012 Report for Java EE

Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
1 Yoshio Terada Java Evangelist http://yoshio3.com, Twitter : @yoshioterada

2 ҎԼͷࣄ߲͸ɺฐࣾͷҰൠతͳ੡඼ͷํ޲ੑʹؔ͢Δ֓ཁΛઆ໌͢Δ΋ͷ Ͱ͢ɻ·ͨɺ৘ใఏڙΛ།Ұͷ໨తͱ͢Δ΋ͷͰ͋Γɺ͍͔ͳΔܖ໿ʹ΋ ૊ΈࠐΉ͜ͱ͸Ͱ͖·ͤΜɻҎԼͷࣄ߲͸ɺϚςϦΞϧ΍ίʔυɺػೳΛ ఏڙ͢Δ͜ͱΛίϛοτϝϯτʢ֬໿ʣ͢Δ΋ͷͰ͸ͳ͍ͨΊɺߪങܾఆ Λߦ͏ࡍͷ൑அࡐྉʹͳ͞Βͳ͍ͰԼ͍͞ɻΦϥΫϧ੡඼ʹؔͯ͠هࡌ͞ Ε͍ͯΔػೳͷ։ൃɺϦϦʔε͓Αͼ࣌ظʹ͍ͭͯ͸ɺฐࣾͷࡋྔʹΑΓ ܾఆ͞Ε·͢ɻ 0SBDMF͸ɺถࠃΦϥΫϧίʔϙϨʔγϣϯٴͼͦͷࢠձࣾɺؔ࿈ձࣾͷถࠃٴͼͦͷଞͷࠃʹ͓͚Δొ࿥঎ ඪͰ͢ɻจதͷ໊ࣾɺ঎඼໊౳͸֤ࣾͷ঎ඪ·ͨ͸ొ࿥঎ඪͰ͋Δ৔߹͕͋Γ·͢ɻ

3

4 .BLFUIF'VUVSF+BWB +BWBͷະདྷΛ૑଄

5 May 1998 Enterprise Java Platform Dec 1999 10 specs Robustness Sep 20110 13 specs Web Services Nov 2003 20 specs Ease of Development May 2006 23 specs Lightweight Dec 2009 28 specs JPE Project J2EE 1.3 CMP, Connector Architecture Java EE 5 Ease of Development, Annotations, EJB 3.0, JPA, JSF, Updated Web Services J2EE 1.4 Web Services Mgmt, Deployment, Async Connector Java EE 6 Pruning, Extensibility Ease of Dev, CDI, JAX-RS Web Profile Servlet 3.0, EJB 3.1 Lite J2EE 1.2 Servlet, JSP, EJB, JMS RMI/IIOP +BWB&&ͷྺ࢙

6 ࠓ೥ͷ݄·Ͱ+BWB&&ͷςʔϚ

7 §  +BWB&&Λ೥य़ϦϦʔε §  +BWB&&ͰΫϥ΢υରԠ Ϋϥ΢υػೳʹ͍ͭͯ +BWB&&ͷϩʔυϚοϓʹ͍ͭͯ

8 ϩʔυϚοϓʹର͢ΔϑΟʔυόοΫ

9 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Insert Information Protection Policy Classification from Slide 16 +BWB&&͸ύοέʔδํ๏ɺ഑උɺҠ২ੑͷ໘ʹ஫ ໨͢Δͱطʹ͕Ϋϥ΢υରԠʹͳ͍ͬͯΔͱݴ ͑ΔͰ͠ΐ͏ɻΫϥ΢υ؀ڥͰඞཁͳ࢒Γͷຬ ͨ͞Εͯͳ͍ࣄʹͳΔͱɺܦݧΛੵΜͩ࣌ʹ໌Β͔ʹ ͳΔͨΊɺ ·ͩඪ४ԽΛߦ͏ஈ֊Ͱ͸͋ Γ·ͤΜɻ ϕϯμʔʹΑΔٕज़ֵ৽ͱ૯߹ͯ͠ඪ४ԽΛߦ͍·͢ɻ զʑ͸ݱ࣌఺Ͱ·ͩ͜ͷ෼໺ʹ͓͍ٕͯज़ֵ৽Λߦͬ ͍ͯ·ͤΜɻ %BWJE#MFWJOT "QBDIF5PN&& (FSPOJNP Apache ϩʔυϚοϓʹର͢ΔϑΟʔυόοΫ

10 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Insert Information Protection Policy Classification from Slide 16 ਖ਼͍͠൑அͰ͢ɻ Ϋϥ΢υͷඪ४Խ͸ࢢ৔ʹରͯ͠ɺඇৗʹ େ͖ͳมԽΛ༩͑ѱ͍ಈ͖ʹͳΓ·͢ɻ ࢧ࣋ twiigs ϩʔυϚοϓʹର͢ΔϑΟʔυόοΫ

11 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Insert Information Protection Policy Classification from Slide 16 ίϛϡχςΟͷཁ๬ʹԠ͑ΔͨΊ+BWB&&Λ࠶ฤ ੒͢Δࣄ͸ɺ ΤΩεύʔτάϧʔϓͷ༐׶ Ͱ੣࣮ͳӳஅͰ͢ɻ ೥ͷय़ʹ༧ఆ͞Ε͍ͯΔ+BWB&&ͰΫϥ΢ υͱ1BB4ػೳͷ࣮૷Λ࠶౓ࢼΈ͍ͯͩ͘͞ɻ .BSLVT&JTFMF +BWB&&$POTVMUBOU IUUQCMPHFJTFMFOFU Java EE Consultant ϩʔυϚοϓʹର͢ΔϑΟʔυόοΫ

12 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Insert Information Protection Policy Classification from Slide 16 +BWB&&ͷ࣮૷ऀͱͯ͠ਃ্͛͠ΔͳΒ͹ɺ զʑ 3FE)BU ͸͜ͷܾஅʹର ͠ଟ͍ʹࢧ͍࣋ͯ͠·͢ɻ ࢲͨͪ͸͔Ͷ͔ͯΒ+BWB&&ίϛϡχςΟ͸·ͩΫ ϥ΢υͷඪ४Խͷ४උ͕Ͱ͖͍ͯͳ͍ࣄΛఏএ͖ͯ͠ ·ͨ͠ɻͦͯ͜͠Ε͸ࢲ͕ͨͪఏڙ͢ΔΫϥ΢υαʔ ϏεͰ͋Δ0QFO4IJGUͷ࣮੷ʹΑͬͯײ͍ͯ͡·͢ɻ 0QFO4IJGU͸+BWB&&ͱ͏·͘ద߹͍ͯ͠·͢ɻ 1FUF.VJS 3FE)BU redhat ϩʔυϚοϓʹର͢ΔϑΟʔυόοΫ

13 ຤௕͘࢖ΘΕΔٕज़ͷ ඪ४Խʹ͸४උظ͕ؒඞཁ

14 § +BWB&& –  )5.-ͱγϯϓϧԽʹϑΥʔΧε § +BWB&& –  Ϋϥ΢υରԠͱϞδϡʔϧԽରԠ΁ͷ ܧଓతͳ౤ࢿ +BWB&&ͷࠓޙ Java EE Hasan Rizvi

15 May 1998 Enterprise Java Platform Dec 1999 10 specs Robustness Sep 20110 13 specs Web Services Nov 2003 20 specs Ease of Development May 2006 23 specs Lightweight Dec 2009 28 specs Simplicity & HTML5 CY 2013 33+ specs JPE Project J2EE 1.3 CMP, Connector Architecture Java EE 5 Ease of Development, Annotations, EJB 3.0, JPA, JSF, Updated Web Services J2EE 1.4 Web Services Mgmt, Deployment, Async Connector Java EE 6 Pruning, Extensibility Ease of Dev, CDI, JAX-RS Web Profile Servlet 3.0, EJB 3.1 Lite Java EE 7 JMS 2.0, Batch, JCache, TX Interceptors HTML5: WebSocket, JSON Web Profile JAX-RS 2.0 J2EE 1.2 Servlet, JSP, EJB, JMS RMI/IIOP +BWB&&ͷྺ࢙

16 τϐοΫ +BWB&&ͷ8FC1SPpMFʹ +"934͕ಋೖ

17 +BWB&&΁ؚ·ΕΔ༧ఆͷ+43Ұཡ $POOFDUPS +1" +5" +.4 .BOBHFE#FBO &+# $PNNPO "OOPUBUJPOT *OUFSDFQUPST $%* 1PSUBCMF &YUFOTJPOT 4FSWMFU +41 +4' +"934 &- #FBO7BMJEBUJPO +BWB$BDIJOH "1* +43 #BUDI "QQMJDBUJPO +43 +BWB"1*GPS +40/ +43 +BWB"1*GPS 8FC4PDLFU +43 ৽ن௥Ճ େ෯ͳߋ৽ ௨ৗͷߋ৽

18 +BWB&&ͷ஫໨ٕज़

19 ࠓ೔͝঺հ͢Δ಺༰ γϯϓϧԽʹؔ͢ΔςʔϚ

20 8FC4PDLFUͷৄࡉ͸ ໌೔ͷ++6($$$Ͱ Ͱ΋গ͚ͩ͠ɺσϞ

21 5XJUUFS Singleton 8FC4PDLFU5XJUUFS5JNF-JOFΞϓϦ 3FNPUF &OEQPJOU RE RE RE Session Session Session 8FC4PDLFU &OEQPJOU 5XJUUFS+

23 +43 +BWB"1*GPS 1SPDFTTJOH+40/

24 3'$ 5IFBQQMJDBUJPOKTPO.FEJB5ZQFGPS +BWB4DSJQU0CKFDU/PUBUJPO ܰྔɺςΩετϕʔεɺϓϩάϥϛϯάݴޠʹඇґଘ Ҡ২ੑ͕ߴ͘ɺߏ଄Խ͞Εͨσʔλަ׵ϑΥʔϚοτ {“name”:”Bob”,”age”:20,”phone”:[“276 1234”,”124 4567”]} +40/ͱ͸

25 JSR 353 : Java API for Processing JSON § 4USFBNJOH"1* –  ௿Ϩϕϧ –  +40/ͷղੳ΍ੜ੒ͷޮ཰తͳํ๏ § 0CKFDU.PEFM"1* –  ߴϨϕϧ –  4USFBNJOHΑΓ΋͔ΜͨΜʹ࣮૷Մೳ –  4USFBNJOH"1*্ʹ࣮૷ Streaming & Object Model

26 +40/"1*ͷΞʔΩςΫνϟ +40/ϓϩόΠμ 41* 4USFBNJOH"1* 0CKFDU.PEFM "1* "11 "11 "11O ・・・ ศརͳػೳ ௿Ϩϕϧ"1*

27 {! "firstName": "John", "lastName": "Smith", ! "age": 25,! "phoneNumber": [! { "type": "home", "number": "212 555-1234" }, ! { "type": "fax", "number": "646 555-4567" }! ]! } +40/σʔλͷαϯϓϧ

28 0CKFDU.PEFM"1* ѻ͍қ͍%0.ϥΠΫͳ࣮૷

29 0CKFDU.PEFM"1* ѻ͍қ͍"1* +TPO0CKFDU +TPO"SSBZ +TPO#VJMEFS +TPO3FBEFS+TPO8SJUFS

30 +4PO0CKFDU ,FZ7BMVFͷϖΞͰૢ࡞ .BQ4USJOH +TPO7BMVFͰૢ࡞Մೳ

31 JsonObject jobj = ...! Map<String, JsonValue> map = jobj.getValues();! ! if (map.containsKey(“firstName”)) {! JsonString jstring = jobj.getValue(“firstName”, ! JsonString.class);! String lastName = jstring.getValue();! } +4PO0CKFDU͔Βಛఆ,FZͷ7BMVFΛऔಘ ,FZͱ7BMVFͷܕ͕෼͔͍ͬͯΔ৔߹ʹ༗ޮ \pSTU/BNF:PTIJP ʜʜ^

32 if (map.containsKey("phoneNumber")) {! JsonArray jarray = jobj.getValue("phoneNumber", ! JsonArray.class);! for (int i = 0; i < jarray.size(); i++) {! JsonValue jvalue = jarray.getValue(i);! if (jvalue.getValueType() == JsonValueType.OBJECT) {! JsonObject jobj2 = jarray.getValue(i, JsonObject.class);! QIPOF/VNCFS< \UZQFIPNFz ^ \UZQFIPNFz ^ʜʜ> +4PO0CKFDU͔Βಛఆ"SSBZΛऔಘ

33 +4PO#VJMEFS͔Β+TPO0CKFDUͷੜ੒ JsonObject jsono = new JsonBuilder().! beginObject().! add("KEY1", "VALUE1").! beginArray("KEY2").! beginObject().! add("KEY3", "VALUE3").! endObject().! endArray().! endObject().! build();! \,&:7"-6& ,&:<\,&: 7"-6&z^>^

34 try (JsonReader reader = new JsonReader(! ɹɹɹɹɹɹɹɹɹɹɹɹnew FileReader("/tmp/json.dat"));) {! JsonObject jobj = reader.readObject();! Person person = json2Person(jobj);! printPerson(person);! } catch (IOException ioe) {! ioe.printStackTrace();! } *0͔Β+4PO0CKFDUͷಡΈࠐΈ

35 try (FileWriter f = new FileWriter(! "/tmp/jsonout.dat");! JsonWriter writer = new JsonWriter(f)) {! writer.writeObject(jsono);! }catch(IOException ioe){! ioe.printStackTrace();! } *0΁+4PO0CKFDUͷॻ͖ࠐΈ

37 +43 #BUDI"QQMJDBUJPOT GPSUIF+BWB1MBUGPSN

38 §  όονॲཧ༻ͷϑϨʔϜϫʔΫ §  +BWB4&&&؀ڥͰར༻Մೳ §  όονॲཧʹඞཁͳɺೖྗɺॲཧɺग़ྗͷ࣮૷Λඪ४Խ §  γʔέϯγϟϧɺฒྻॲཧʹରԠ ػೳͷҰཡ KCBUDI

39 KCBUDIͷΞʔΩςΫνϟ +PC3FQPTJUPSZ +PC 0QFSBUPS Item Reader Item Processor Item Writer +PC 4UFQ ̍ɹ ̍ ̍ ̍ ̍ ̍ ̍ શମΞʔΩςΫνϟ

40 +PC0QFSBUPS +PC3FQPTJUPSZ +PC 0QFSBUPS Item Reader Item Processor Item Writer +PC 4UFQ ̍ɹ ̍ ̍ ̍ ̍ ̍ ̍ δϣϒॲཧͷશମΛ؅ཧ ʢىಈɾఀࢭɾ࠶ىಈɾϨϙδτϦ৘ใऔಘͳͲʣ

41 +PC +PC3FQPTJUPSZ +PC 0QFSBUPS Item Reader Item Processor Item Writer +PC 4UFQ ̍ɹ ̍ ̍ ̍ ̍ ̍ ̍ όονͷॲཧ಺༰ΛӅณ +4- δϣϒ࢓༷هड़ݴޠ Ͱهࡌͨ͠಺༰ͱؔ࿈෇͚

42 4UFQ +PC3FQPTJUPSZ +PC 0QFSBUPS Item Reader Item Processor Item Writer +PC 4UFQ ̍ɹ ̍ ̍ ̍ ̍ ̍ ̍ όονͷॲཧ಺༰ΛӅณ +4- δϣϒ࢓༷هड़ݴޠ Ͱهࡌͨ͠಺༰ͱؔ࿈෇͚ ํࣜɿDIVOL CBUDIMFU

43 <job id="job1" xmlns="http://batch.jsr351/js1">! <split id="split1">! <flow id="flow1" next="flow2">! <step id="step1" next="step2">! <batchlet ref="MyBatchlet"/>! </step>! <step id="step2" next="stepDONE">! <batchlet ref="MyBatchlet2"/>! </step>! </flow>… </job>! +PC4QFDJpDBUJPO-BOHVBHF +4-δϣϒ࢓༷هड़ݴޠ

44 <flow id="flow2">! <step id="step3">! <chunk reader="MyReader" processor="MyProcessor" ! write="MyWriter” commit-interval=“2”>! <properties>! <property name="audit" value="true"/>! </properties>! </chunk>! </step>! </flow></split></job>! +PC4QFDJpDBUJPO-BOHVBHF +4-δϣϒ࢓༷هड़ݴޠ

45 DIVOLํࣜ +PC3FQPTJUPSZ +PC 0QFSBUPS Item Reader Item Processor Item Writer +PC 4UFQ ̍ɹ ̍ ̍ ̍ ̍ ̍ ̍ όονΛΞΠςϜʢೖྗɺॲཧɺग़ྗʣຖʹ෼͚࣮ͯ૷ *UFN3FBEFSσʔλͷೖྗ *UFN1SPDFTTPSσʔλͷॲཧ *UFN8SJUFSσʔλͷग़ྗ

46 DIVOLํࣜͷγʔέϯεਤͷྫ DPNNJUJOUFSWBMlzͷ৔߹

47 package javax.batch.api;! import java.io.Externalizable;! public interface ItemReader <T> {! public void open(Externalizable checkpoint) throws Exception;! public void close() throws Exception;! public T readItem() throws Exception;! public Externalizable checkpointInfo() throws Exception;! } *UFN3FBEFSΠϯλϑΣʔε

48 import javax.batch.api.ItemReader;! @Named! public class MyReader implements ItemReader { ! ɹ...! } *UFN3FBEFSͷ࣮૷ྫ ΠϯλϑΣʔε࣮૷༗

49 *UFN3FBEFSͷ࣮૷ྫ ΠϯλϑΣʔε࣮૷ແ import javax.batch.annotation.*;! @Named! public class MyReader {! @Open void open(MyCheckpointData checkpoint) ! throws Exception {...}! @Close void close() throws Exception {...}! @ReadItem MyBatchInputRecord read() throws Exception {...}! @CheckpointInfo Externalizable MyCheckpointData getChkpt() ! throws Exception {...}! }

50 package javax.batch.api;! public interface ItemProcessor <T, R> {! public R processItem(T item) throws Exception;! }! *UFN1SPDFTTPSΠϯλϑΣʔε

51 *UFN3FBEFSͱಉ༷ ɹ˔ΠϯλϑΣʔεͷ࣮૷༗ ɹ˔ΠϯλϑΣʔεͷ࣮૷ແ ɹɹʢϝιουϨϕϧɾΞϊςʔγϣϯʣ

52 package javax.batch.api; ! import java.io.Externalizable;! import java.util.List;! public interface ItemWriter <T> {! public void open(Externalizable checkpoint) throws Exception;! public void close() throws Exception;! public void writeItems(List<T> items) throws Exception;! public Externalizable checkpointInfo() throws Exception;! }! *UFN8SJUFSΠϯλϑΣʔε

53 *UFN3FBEFSͱಉ༷ ɹ˔ΠϯλϑΣʔεͷ࣮૷ ɹ˔ΠϯλϑΣʔεͷະ࣮૷ ɹɹʢϝιουϨϕϧɾΞϊςʔγϣϯʣ

54 Batchlet #BUDIMFUํࣜ +PC3FQPTJUPSZ +PC 0QFSBUPS +PC 4UFQ ̍ɹ ̍ ̍ όονΛ̍ͭͷλεΫͱ࣮ͯ͠૷ Ұ୴ॲཧΛ࣮ߦ͢Δͱ࠷ޙ·ͰॲཧΛଓߦ

55 package javax.batch.api;! public interface Batchlet {! public String process() throws Exception;! public void stop() throws Exception;! }! #BUDIMFUΠϯλϑΣʔε

56 package javax.batch.api;! public interface Batchlet {! public String process() throws Exception;! public void stop() throws Exception;! }! #BUDIMFUΠϯλϑΣʔε @Named! public class MyBatchLet{! @Process String process() throws Exception {...} ! @Stop void stopMe() throws Exception {...}! }! ΠϯλϑΣʔε࣮૷༗ ΠϯλϑΣʔε࣮૷ແ

57 +PC3FQPTJUPSZ +PC3FQPTJUPSZ +PC 0QFSBUPS Item Reader Item Processor Item Writer +PC 4UFQ ̍ɹ ̍ ̍ ̍ ̍ ̍ ̍ +PCʹؔ͢Δݱࡏɾաڈͷ৘ใΛอ࣋

59 +43 +BWBä.FTTBHF4FSWJDF

60 §  ͔ΜͨΜʹ࣮૷Ͱ͖ΔΑ͏ʹͳͬͨ"1* –  +.4$POUFYU +.41SPEVDFS +.4$POTVNFSͷ௥Ճ §  ྫ֎ͷ࣮૷ํ๏ͷมߋ §  طଘ"1*ʹର͢Δվળ §  $%*Λར༻ͨ͠৑௕ίʔυͷഉআ §  Ϋϥ΢υػೳ͸+BWB&&΁ ৽ػೳͷҰཡ +.4 ஫ҙɿ ڈ೥ͷ+BWB0OF +BWB0OF5PLZPͷ಺ ༰͔Βएׯมߋ͋Γ

61 @Resource( mappedName="jms/MyConnectionFactory” )! private static ConnectionFactory connectionFactory; ! @Resource( mappedName="jms/mySampleQueue” )! private static Queue queue;! public void sendMessage(String text){! Connection con = connectionFactory.createConnection();! Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE);! MessageProducer prod = session.createProducer(queue);! TextMessage message = session.createTextMessage(text);! message.setText(message);! prod.send(message);! con.close();} طଘͷϝοηʔδૹ৴ίʔυ

62 @Resource( mappedName="jms/MyConnectionFactory” )! private static ConnectionFactory connectionFactory; ! @Resource( mappedName="jms/mySampleQueue” )! private static Queue queue;! public void sendMessage(String text){! Connection con = connectionFactory.createConnection();! Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE);! MessageProducer prod = session.createProducer(queue);! TextMessage message = session.createTextMessage(text);! message.setText(message);! prod.send(message);! con.close();} طଘͷίʔυͷ՝୊ ୯ͳΔϝοηʔδૹ৴ʹ தؒΦϒδΣΫτ͕ඞཁ

63 @Resource( mappedName="jms/MyConnectionFactory” )! private static ConnectionFactory connectionFactory; ! @Resource( mappedName="jms/mySampleQueue” )! private static Queue queue;! public void sendMessage(String text){! Connection con = connectionFactory.createConnection();! Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE);! MessageProducer prod = session.createProducer(queue);! TextMessage message = session.createTextMessage(text);! message.setText(message);! prod.send(message);! con.close();} طଘͷίʔυͷ՝୊ ఆܕతͳίʔυ

64 javax.jms.JMSContext インタフェース +.4$POUFYU $POOFDUJPO 4FTTJPO •  ผʑͷΫϥεΛ̍ͭʹ౷߹ –  $POOFDUJPO –  4FTTJPO •  +.41SPEVDFSͷఏڙ •  +.4$POTVNFSͷఏڙ ৽نʹ+.4$POUFYUΠϯλϑΣʔεΛఏڙ

65 JMScontext = conFactory.createContext();! TextMessage textMsg = context.createTextMessage(message);! context.createProducer(). send(queue, textMsg);! ! JMSContext context = conFactory.! createContext(AUTO_ACKNOWLEDGE);! MessageListener mListener = new MyMsgListener();! context.createConsumer(dest).setMessageListener(mListener);! ϝοηʔδૹ৴ྫ ϝοηʔδड৴ +.4$POUFYUΛར༻࣮ͨ͠૷ྫ

66 MessageProducer producer = session.createProducer(); ! producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT); ! producer.setPriority(1);! producer.setTimeToLive(1000); ! producer.send(destination,message);! context.createProducer().setDeliveryMode(DeliveryMode.NON_ ! PERSISTENT). setPriority(1).setTimeToLive(1000).send( ! destination,message);! +.4 +.4 +.41SPEVDFSͷར༻ྫ ϝιουɾνΣʔϯʹΑΔઃఆ

67 　public void sendMessage(String text){! 　　Connection con = null;! 　　try{! 　 con = connectionFactory.createConnection();! 　 Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE);! 　 MessageProducer prod = session.createProducer(queue);! 　 TextMessage message = session.createTextMessage(text);! 　 message.setText(message);! 　 prod.send(message);! 　}finally{! 　 con.close();! 　} ࢖༻ޙίωΫγϣϯͷ Ϋϩʔζ͕ඞཁ ૹ৴ίʔυʹ͓͚Δطଘͷίʔυͷ՝୊

68 AutoCloseable による実装 (close()の実装が不要) ! public void sendMessage(String text){! ɹ try(JMSContext context = conFactory.createContext();){! TextMessage message = session.createTextMessage(text);! context.createProducer().send(outQueue,message);! message.sendText(outQueue,message);! }! }! +BWB4&USZXJUISFTPVSDFʹରԠ

69 　public void sendMessage(String text){! 　　try{! 　 ……// 送信処理! 　 prod.send(message);! 　 }catch(JMSException jmse){! 　 // 例外処理! 　 }finally{! 　 try{! 　 if(con != null) con.close();! 　 }catch (JMSException jmse2){! 　 // 例外処理! 　 }}} ྫ֎ॲཧͷ࣮૷͕ ඞཁ ૹ৴ίʔυʹ͓͚Δطଘͷίʔυͷ՝୊

70 νΣοΫྫ֎͔ΒඇνΣοΫྫ֎΁ աڈͷྫ֎Ϋϥε ࠓޙͷྫ֎Ϋϥε JMSException JMSRuntimeException TransactionRolledBackException TransactionRolledBackRuntimeException IllegalStateException IllegalStateRuntimeException! InvalidDestinationException IllegalDestinationRuntimeException! InvalidSelectorException InvalidSelectorRuntimeException MessageFormatException MessageFormatRuntimeException ྫ֎ͷ࣮૷ํ๏͕มߋ

71 ྫ֎͕3VOUJNF&YDFQUJPOʹมߋ public void sendMessage(String text){! try{! ……// ૹ৴ॲཧ! prod.send(message);! } catch (JMSRuntimeException ex) {! Logger.getLogger(getClass().getName()).! log(Level.SEVERE, null, ex); ! }! } ྫ֎ͷ࣮૷ํ๏͕มߋ

72 §  +/%*ϧοΫΞοϓͰίϯςφͷ઀ଓϑΝΫτϦΛ࢖༻ –  ίωΫγϣϯɾϓʔϧ౳Λར༻Մೳ §  +/%*໊Λະࢦఆ࣌ɺγεςϜͷσϑΥϧτ࢖༻ +.4$POUFYUʹର͢Δ஫ೖ @Inject! @JMSConnectionFactory(“jms/MyConFactory”)! private JMSContext context; ΞϊςʔγϣϯΛར༻ͨ͠ґଘੑ஫ೖ

73 +.4$POUFYUʹର͢Δ஫ೖ @Inject! @JMSConnectionFactory(“jms/MyConFactory”) ! @JMSPasswordCredential(userName=“admin”,password=“admin”)! @JMSSessionMode(JMSContext.AUTO_ACKNOWLEDGE)! private JMSContext context; パスワードやセッションモードの設定 ΞϊςʔγϣϯΛར༻ͨ͠ґଘੑ஫ೖ

74

75 @Resource( mappedName="jms/MyConnectionFactory” )! private static ConnectionFactory connectionFactory; ! @Resource( mappedName="jms/mySampleQueue” )! private static Queue queue;! ! public void sendMessage(String text){! Connection con = connectionFactory.createConnection();! Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE);! MessageProducer prod = session.createProducer(queue);! TextMessage message = session.createTextMessage(text);! message.setText(message);! prod.send(message);! con.close(); +BWB&&·Ͱͷϝοηʔδૹ৴ίʔυ

76 @Inject! @JMSConnectionFactory(“jms/MyConFactory”) ! private JMSContext context;! @Resource(mappedName = “jms/queue”)! private Queue queue;! ! public void sendNewMessage(String msg){! context.createProducer().send(queue, msg);! } +BWB&&͔Βͷϝοηʔδૹ৴ίʔυ

78 +43 &YQSFTTJPO-BOHVBHF

79 §  -BNCEBࣜରԠ –  "SSBZ -JTU .BQͷߏ੒ §  ίϨΫγϣϯʹର͢ΔΫΤϦԋࢉࢠ -*/2ࣜ §  +BWB4&؀ڥͰར༻͢ΔͨΊͷ"1*Λఏڙ §  σϑΥϧτͷ&-࣮ߦ؀ڥϚωʔδϟͷ௥Ճ §  Ϋϥε TUBUJD ม਺ɺΫϥε TUBUJD ϝιουɺFOVNఆ਺ରԠ §  ΫϥεɺύοέʔδͷΠϯϙʔτ ৽ػೳͷҰཡ &-

80 §  ໊લۭؒΛ࣋ͭ/BNF –  SFGFSFODF JNQPSU §  ؔ਺ఆٛ §  ίϯετϥΫλ §  ৽͍͠ԋࢉࢠ –  จࣈྻ࿈݁ԋࢉࢠɺม਺ׂ౰༻ԋࢉࢠ §  ܕม׵ §  දهͷධՁ༻ͷϦεφʔ ৽ػೳͷҰཡ &-

81 +BWB&&೥य़ࠒ ఏڙ։࢝༧ఆ ςʔϚɿ)5.-ͱ։ൃੜ࢈ੑͷ޲্ +BWB&&4%,ͷఏڙ։࢝

82 http://www.oracle.com/javaone

83 /FX"OOPVODFNFOU ೥य़ࠒ +BWBΠϕϯτ։࠵༧ఆ

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JavaOne 2012 Report for Java EE

JavaOne 2012 Report for Java EE

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