import org.springframework.data.jpa.repository.support.JpaEntityInformationSupport; //导入依赖的package包/类
public GenericRepositoryImpl(Class<E> domainClass, EntityManager em) {
	this(JpaEntityInformationSupport.getEntityInformation(domainClass, em), em);
}
 

import org.springframework.data.jpa.repository.support.JpaEntityInformationSupport; //导入依赖的package包/类
@Autowired
@SuppressWarnings("unchecked")
public void setEntityManager(EntityManager em) {
	this.em = em;
	this.entityInfo = (JpaEntityInformation<T, ID>) JpaEntityInformationSupport.getEntityInformation(entityClass,em);
}
 

import org.springframework.data.jpa.repository.support.JpaEntityInformationSupport; //导入依赖的package包/类
public GenericRepositoryImpl(Class<E> domainClass, EntityManager em) {
	this(JpaEntityInformationSupport.getMetadata(domainClass, em), em);
}
 

import org.springframework.data.jpa.repository.support.JpaEntityInformationSupport; //导入依赖的package包/类
public GenericJpaRepositoryImpl(Class<T> domainClass, EntityManager entityManager) {
	//modified for spring data starter 1.3
	super(domainClass , entityManager);
	this.entityInformation = JpaEntityInformationSupport.getEntityInformation(domainClass, entityManager) ;
	this.entityManager = entityManager;
}
 

import org.springframework.data.jpa.repository.support.JpaEntityInformationSupport; //导入依赖的package包/类
public SoftDeletesRepositoryImpl(Class<T> domainClass, EntityManager em) {
	super(domainClass, em);
	this.em = em;
	this.domainClass = domainClass;
	this.entityInformation = JpaEntityInformationSupport.getEntityInformation(domainClass, em);
}
 

import org.springframework.data.jpa.repository.support.JpaEntityInformationSupport; //导入依赖的package包/类
public GenericRepositoryImpl(Class<T> domainClass, EntityManager em) {
	this(JpaEntityInformationSupport.getMetadata(domainClass, em), em);
}
 

import org.springframework.data.jpa.repository.support.JpaEntityInformationSupport; //导入依赖的package包/类
@SuppressWarnings("unchecked")
public JpaRepository(Class<T> entityClass, EntityManager em) {
	this((JpaEntityInformation<T, ID>) JpaEntityInformationSupport.getMetadata(entityClass, em), em);
}
 

import org.springframework.data.jpa.repository.support.JpaEntityInformationSupport; //导入依赖的package包/类
/**
 * Creates a new {@link SimpleJpaRepository} to manage objects of the given
 * domain type.
 */
protected GenericRepositoryImpl(final Class<T> domainClass, final EntityManager em) {
    this(JpaEntityInformationSupport.getMetadata(domainClass, em), em, null);
}