4

jpa を使用する rcp アプリケーションを実行すると、次の警告メッセージが表示されます。

[EL Info]: 2012-05-23 22:29:26.841--ServerSession(20341825)--EclipseLink, version: Eclipse Persistence Services - 2.3.2.v20111125-r10461
[EL Warning]: 2012-05-23 22:29:27.338--ServerSession(20341825)--Reverting the lazy setting on the OneToOne or ManyToOne attribute [infoid] for the entity class [class org.company.management.entity.Employee] since weaving was not enabled or did not occur.
[EL Warning]: 2012-05-23 22:29:27.339--ServerSession(20341825)--Reverting the lazy setting on the OneToOne or ManyToOne attribute [groupid] for the entity class [class org.company.management.entity.Employee] since weaving was not enabled or did not occur.
[EL Warning]: 2012-05-23 22:29:27.339--ServerSession(20341825)--Reverting the lazy setting on the OneToOne or ManyToOne attribute [employeeSchedule] for the entity class [class org.company.management.entity.Employee] since weaving was not enabled or did not occur.
[EL Warning]: 2012-05-23 22:29:27.34--ServerSession(20341825)--Reverting the lazy setting on the OneToOne or ManyToOne attribute [employeescheduleid] for the entity class [class org.company.management.entity.EmployeeScheduleInfo] since weaving was not enabled or did not occur.
[EL Warning]: 2012-05-23 22:29:27.34--ServerSession(20341825)--Reverting the lazy setting on the OneToOne or ManyToOne attribute [scheduleid] for the entity class [class org.company.management.entity.EmployeeSchedule] since weaving was not enabled or did not occur.
[EL Warning]: 2012-05-23 22:29:27.34--ServerSession(20341825)--Reverting the lazy setting on the OneToOne or ManyToOne attribute [employeeid] for the entity class [class org.company.management.entity.EmployeeSchedule] since weaving was not enabled or did not occur.
[EL Warning]: 2012-05-23 22:29:27.341--ServerSession(20341825)--Reverting the lazy setting on the OneToOne or ManyToOne attribute [employee] for the entity class [class org.company.management.entity.EmployeeInfo] since weaving was not enabled or did not occur.
[EL Info]: 2012-05-23 22:29:27.556--ServerSession(20341825)--bundleresource://29.fwk31583837:2_Management login successful

そして、遅延読み込みを有効にしたい。

私のpersistence.xmlは次のようになります。

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="Management" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>org.company.management.entity.EmployeeGroup</class>
<class>org.company.management.entity.Company</class>
<class>org.company.management.entity.Employee</class>
<class>org.company.management.entity.Schedule</class>
<class>org.company.management.entity.EmployeeInfo</class>
<class>org.company.management.entity.EmployeeSchedule</class>
<class>org.company.management.entity.EmployeeScheduleInfo</class>

<properties>
  <property name="javax.persistence.jdbc.url" value="jdbc:derby:.cafedb;create=true"/>
  <property name="javax.persistence.jdbc.password" value="vodbomb"/>
  <property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.EmbeddedDriver"/>
  <property name="javax.persistence.jdbc.user" value="root"/>

  <property name="eclipselink.ddl-generation" value="create-tables" />
</properties>
</persistence-unit>
</persistence>

静的織りを作成するためのビルドスクリプト「build.xml」があります。

<project name="Management" basedir=".">
<target name="define.task" description="New task definition for toplink static weaving">
<taskdef name="weave" classname="org.eclipse.persistence.tools.weaving.jpa.StaticWeaveAntTask">
</taskdef>
</target>    
<target name="weaving" description="perform weaving" depends="define.task"
<weave  source="${basedir}/src/org/company/management/entity"
                target="${basedir}/src/org/company/management/entity/woven.jar"
                persistenceinfo="${basedir}/META-INF/persistence.xml">     
</weave>
</target>
</project>

Antスクリプト「build.xml」を実行すると、次のエラーが発生します。

Buildfile: C:\Users\J\workspace\org.company.management\build.xml
define.task:
weaving:

BUILD FAILED
C:\Users\J\workspace\org.company.management\build.xml:13: Exception [EclipseLink-40007]     (Eclipse Persistence Services - 2.3.2.v20111125-r10461):     org.eclipse.persistence.exceptions.StaticWeaveException
Exception Description: An exception was thrown while weaving:     C:\Users\J\workspace\org.company.management\src\org\company\management\entity
Internal Exception: Exception [EclipseLink-40001] (Eclipse Persistence Services -     2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.StaticWeaveException
Exception Description: An exception was thrown while trying to open an archive from     URL: file:/C:/Users/J/workspace/org.company.management/META-INF/persistence.xml 
Internal Exception: java.util.zip.ZipException: error in opening zip file

Total time: 242 milliseconds

静的ウィービングを有効にする方法??? 私は混乱しています

4

5 に答える 5

2

Netbeans で Eclipse-Link JPA を使用して Static Weaving Ant タスクを適用する方法は?

質問と回答を組み合わせると、実際の例が得られます。

于 2013-01-18T12:47:41.277 に答える
1

あなたの問題は、ソースがディレクトリではなくjarであるべきだと思います。コンパイルされたクラスの jar を与えてみてください。

見る、

http://wiki.eclipse.org/EclipseLink/UserGuide/JPA/Advanced_JPA_Development/Performance/Weaving/Static_Weaving

于 2012-05-24T13:35:52.330 に答える
0

persistance.xml に static weaving 宣言がありません:

<properties>
    ...
    <property name="eclipselink.weaving" value="static"/>
    ...
</properties>
于 2014-02-27T14:38:46.750 に答える
0

DALI SETTINGSを使用して Eclipse で有効にします。Projects->Build Automatically 設定を有効にする必要があったことに注意してください。そうしないと、ファイルが常に再構築されます。

于 2013-12-14T18:03:34.550 に答える