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Micro Distribution of the Payara Project for IBM JDK
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package com.sun.enterprise.deployment;
import org.glassfish.api.deployment.archive.ArchiveType;
import org.glassfish.deployment.common.ModuleDescriptor;
import org.glassfish.deployment.common.RootDeploymentDescriptor;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* This descriptor represents contents for one persistence.xml file.
*
* @author [email protected]
*/
public class PersistenceUnitsDescriptor extends RootDeploymentDescriptor {
/** the parent descriptor that contains this descriptor */
private RootDeploymentDescriptor parent;
/**
* The relative path from the parent {@link RootDeploymentDescriptor}
* to the root of this persistence unit. e.g.
* WEB-INF/classes -- if persistence.xml is in WEB-INF/classes/META-INF,
* WEB-INF/lib/foo.jar -- if persistence.xml is in WEB-INF/lib/foo.jar/META-INF,
* "" -- if persistence.xml is in some ejb.jar, or
* util/bar.jar -- if persistence.xml is in a.ear/util/bar.jar
*/
private String puRoot;
List persistenceUnitDescriptors =
new ArrayList();
private static final String JPA_1_0 = "1.0";
public PersistenceUnitsDescriptor() {
}
public RootDeploymentDescriptor getParent() {
return parent;
}
public void setParent(RootDeploymentDescriptor parent) {
this.parent = parent;
}
public String getPuRoot() {
return puRoot;
}
public void setPuRoot(String puRoot) {
this.puRoot = puRoot;
}
public String getDefaultSpecVersion() {
return JPA_1_0;
}
public String getModuleID() {
throw new RuntimeException();
}
public ArchiveType getModuleType() {
throw new RuntimeException();
}
public ClassLoader getClassLoader() {
return parent.getClassLoader();
}
public boolean isApplication() {
return false;
}
/**
* This method does not do any validation like checking for unique names
* of PersistenceUnits.
* @param pud the PersistenceUnitDescriptor to be added.
*/
public void addPersistenceUnitDescriptor(PersistenceUnitDescriptor pud){
persistenceUnitDescriptors.add(pud);
pud.setParent(this);
}
/**
* @return an unmodifiable list.
*/
public List getPersistenceUnitDescriptors() {
return Collections.unmodifiableList(persistenceUnitDescriptors);
}
/**
* This is a utility method which calculates the absolute path of the
* root of a PU. Absolute path is not the path with regards to
* root of file system. It is the path from the root of the Java EE
* application this persistence unit belongs to.
* Like {@link #getPuRoot()} returned path always uses '/' as path separator.
* @return the absolute path of the root of this persistence unit
* @see #getPuRoot()
*/
public String getAbsolutePuRoot() {
RootDeploymentDescriptor rootDD = getParent();
if(rootDD.isApplication()){
return getPuRoot();
} else {
ModuleDescriptor module = BundleDescriptor.class.cast(rootDD).
getModuleDescriptor();
if(module.isStandalone()) {
return getPuRoot();
} else {
final String moduleLocation = module.getArchiveUri();
return moduleLocation + '/' + getPuRoot(); // see we always '/'
}
}
}
public boolean isEmpty() {
return persistenceUnitDescriptors.isEmpty();
}
}
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