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

Introduction

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

Prototype

public PersistenceUnitReader(ResourcePatternResolver resourcePatternResolver,
        DataSourceLookup dataSourceLookup) 

Source Link

Document

Create a new PersistenceUnitReader.

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. jav  a 2  s.  co  m*/
 */
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;
}

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