Patterns in JavaTM, Volume 3 Java Enterprise Java Enterprise Design Patterns phần 1 doc

... interactions numbered 1. 1 and 1. 2 are made during the method call of interaction 1. Similarly, interactions numbered 1. 1 .1, 1. 1.2, 1. 1 .3, . . . occur during the method call of interaction 1. 1. Among ... register(wrap1) 2 .1: commit( ) 1. 1 .1: synchronize( ) 1. 1.2: status1:=getStatus( ) 1. 1.2/[all status==SUCCESS]2.1a .1: commit( ) [any status==FAILURE]2.1a.2: abort( ) 1....

Ngày tải lên: 14/08/2014, 02:20

... Manipulates TransactionParticipant2 1 1 1 StateSavingClass1 1 StateSavingClass2 TransactionLogic ReadWriteLock ReadWriteLock Uses Uses 11 11 «interface» TransactionParticipantIF TransactionManager Uses 1 Uses 1 Uses 1 Uses 1 1 ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ expectation ... Uses 11 11 Provides-data-to 1 0 * enters-data-for 1 * Contains- transaction-details 0 * 1 TransactionFil...

Ngày tải lên: 14/08/2014, 02:20

... interactions involved in the migration of a mobile agent. Descriptions of the interactions appear in Table 5 .1. 12 2 ■ CHAPTER FIVE env1:AgentEnvironment env2:AgentEnvironment m1:MobileAgent 1A: ... moveMe(m1,env2) m2:MobileAgent :Connection 1A .1: create(env2) 2A: readAck 5A: writeConfirm :ObjectOutputStream 1A.2: writeObject(m1) 1A.2 .1: write :ObjectInputStream 2B: m2:=readObject( )...

Ngày tải lên: 14/08/2014, 02:20

... writing software for a new kind of smart food processor that turns raw ingredients into cooked, ready-to-eat food by slicing, dicing, mixing, boiling, baking, frying, and/or stirring the ingredients. ... ) ServiceThread continueCall(:Service) ProtectionProxy continueCall(:Service) * continues-calls -in- a-safe-thread 1 1 Uses 1 1 Uses 1 * Determine-if-and-when-a-method-call-will-pr...

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... = this .in; int c1 = in. read(); int c2 = in. read(); int c3 = in. read(); int c4 = in. read(); if ((c1 | c2 | c3 | c4) < 0) throw new EOFException(); Distributed Computing Patterns ■ 227 3A. Call ... read(byte[], int, int) The read method uses the readInt method to read the byte counts that the server inserts into the data stream. private final int readInt() throws IOException { In...

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... object. InputStream in = actualSocket.getInputStream(); int otherBufferSize = new DataInputStream (in) .readInt(); BufferedInputStream bin; bin = new BufferedInputStream (in) ; actualIn = new DataInputStream(bin); // ... connection. 266 ■ CHAPTER SIX RELATED PATTERNS Singleton. The Singleton pattern (described in Volume 1) uses a single instance of a class for an entire program. The...

Ngày tải lên: 14/08/2014, 02:20

... findInsertionIndex(node); expirations.add(insertionIndex, node); } // scheduleRemoval(LinkedList) /** * Determine where in a LinkedList an object belongs * based on expiration times. */ private int findInsertionIndex(LinkedList ... p2:TransactionParticipant2 2 .1: s1 := lock( ) 4.5: restoreState(s1) 4.6: unlock( ) 3. 1: s2 := lock( ) 4.2: restoreState(s2) 4 .3: unlock( ) s1:StateSaver1 s2...

Ngày tải lên: 14/08/2014, 02:20

... if int latestIndex = 0; Interval latestInterval = intervals[latestIndex]; for (int i =1; i<length; i++) { if (intervals[i].endsAfter(latestInterval)) { latestIndex = i; latestInterval = intervals[i]; Temporal ... if int latestIndex = 0; Interval latestInterval = intervals[latestIndex]; for (int i =1; i<length; i++) { if (intervals[i].endsAfter(latestInterval)) { latestIndex = i; latestI...

Ngày tải lên: 14/08/2014, 02:20

... is shown in Figure 9 .14 . Here are descriptions of the interactions shown in Figure 9 .14 : 1. An object responsible for persisting some complex objects is asked to retrieve one. 1. 1. In the course ... cuisine that this restaurant serves. */ public void setCuisine(String cuisine){ if (isModification(this.cuisine, cuisine)) { this.cuisine = cuisine; dirty = true; } // if } // setCuis...

Ngày tải lên: 14/08/2014, 02:20

... pat- tern, 12 9– 13 2 Mobile Agent pattern, 11 9 12 7 Object Replication pattern, 99 10 7 Object Request Broker (ORB) pattern, 89–98 Process Pairs pattern, 13 3 – 13 5 Prompt Repair pattern, 11 5 11 8 Redundant Independent ... pattern, 32 5 33 5 and Cache Management pattern (described in vol. 1) , 33 4 33 5 and Heavyweight/Lightweight pattern, 33 5 and Scheduler pattern (described...

Ngày tải lên: 14/08/2014, 02:20