Example usage for org.springframework.orm.jpa.persistenceunit PersistenceUnitReader readPersistenceUnitInfos

Introduction

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

Prototype

public SpringPersistenceUnitInfo[] readPersistenceUnitInfos(String[] persistenceXmlLocations) 

Source Link

Document

Parse and build all persistence unit infos defined in the given XML files.

Usage

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

/**
 * Read all persistence unit infos from {@code persistence.xml},
 * as defined in the JPA specification./*from   w  w  w  .j av  a  2  s  .c om*/
 */
private List<SpringPersistenceUnitInfo> readPersistenceUnitInfos() {
    List<SpringPersistenceUnitInfo> infos = new LinkedList<>();
    String defaultName = this.defaultPersistenceUnitName;
    boolean buildDefaultUnit = (this.packagesToScan != null || this.mappingResources != null);
    boolean foundDefaultUnit = false;

    PersistenceUnitReader reader = new PersistenceUnitReader(this.resourcePatternResolver,
            this.dataSourceLookup);
    SpringPersistenceUnitInfo[] readInfos = reader.readPersistenceUnitInfos(this.persistenceXmlLocations);
    for (SpringPersistenceUnitInfo readInfo : readInfos) {
        infos.add(readInfo);
        if (defaultName != null && defaultName.equals(readInfo.getPersistenceUnitName())) {
            foundDefaultUnit = true;
        }
    }

    if (buildDefaultUnit) {
        if (foundDefaultUnit) {
            if (logger.isInfoEnabled()) {
                logger.info("Found explicit default unit with name '" + defaultName + "' in persistence.xml - "
                        + "overriding local default unit settings ('packagesToScan'/'mappingResources')");
            }
        } else {
            infos.add(buildDefaultPersistenceUnitInfo());
        }
    }
    return infos;
}

---