SpringPersistenceUnitInfo.java 文件源码

/**
 * This implementation delegates to the LoadTimeWeaver, if specified.
 */
@Override
public void addTransformer(ClassTransformer classTransformer) {
    if (this.loadTimeWeaver == null) {
        throw new IllegalStateException("Cannot apply class transformer without LoadTimeWeaver specified");
    }
    this.loadTimeWeaver.addTransformer(new ClassFileTransformerAdapter(classTransformer));
}