Example usage for org.springframework.orm.jpa.persistenceunit SpringPersistenceUnitInfo init

Introduction

In this page you can find the example usage for org.springframework.orm.jpa.persistenceunit SpringPersistenceUnitInfo init.

Prototype

public void init(@Nullable ClassLoader classLoader) 

Source Link

Document

Initialize this PersistenceUnitInfo with the current class loader (instead of with a LoadTimeWeaver).

Usage

From source file:org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.java

/**
 * Prepare the PersistenceUnitInfos according to the configuration
 * of this manager: scanning for {@code persistence.xml} files,
 * parsing all matching files, configuring and post-processing them.
 * <p>PersistenceUnitInfos cannot be obtained before this preparation
 * method has been invoked.//from w w w. jav a2 s.  c om
 * @see #obtainDefaultPersistenceUnitInfo()
 * @see #obtainPersistenceUnitInfo(String)
 */
public void preparePersistenceUnitInfos() {
    this.persistenceUnitInfoNames.clear();
    this.persistenceUnitInfos.clear();

    List<SpringPersistenceUnitInfo> puis = readPersistenceUnitInfos();
    for (SpringPersistenceUnitInfo pui : puis) {
        if (pui.getPersistenceUnitRootUrl() == null) {
            pui.setPersistenceUnitRootUrl(determineDefaultPersistenceUnitRootUrl());
        }
        if (pui.getJtaDataSource() == null && this.defaultJtaDataSource != null) {
            pui.setJtaDataSource(this.defaultJtaDataSource);
        }
        if (pui.getNonJtaDataSource() == null && this.defaultDataSource != null) {
            pui.setNonJtaDataSource(this.defaultDataSource);
        }
        if (this.sharedCacheMode != null) {
            pui.setSharedCacheMode(this.sharedCacheMode);
        }
        if (this.validationMode != null) {
            pui.setValidationMode(this.validationMode);
        }
        if (this.loadTimeWeaver != null) {
            pui.init(this.loadTimeWeaver);
        } else {
            pui.init(this.resourcePatternResolver.getClassLoader());
        }
        postProcessPersistenceUnitInfo(pui);
        String name = pui.getPersistenceUnitName();
        if (!this.persistenceUnitInfoNames.add(name) && !isPersistenceUnitOverrideAllowed()) {
            StringBuilder msg = new StringBuilder();
            msg.append("Conflicting persistence unit definitions for name '").append(name).append("': ");
            msg.append(pui.getPersistenceUnitRootUrl()).append(", ");
            msg.append(this.persistenceUnitInfos.get(name).getPersistenceUnitRootUrl());
            throw new IllegalStateException(msg.toString());
        }
        this.persistenceUnitInfos.put(name, pui);
    }
}

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