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A generics DAO pattern/library

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package com.discursive.dao.generic;

import java.io.Serializable;
import java.util.Collection;
import java.util.List;

import org.springframework.transaction.annotation.Transactional;

public interface GenericDao {

    T byId(ID id);

    T byId(ID id, boolean lock);

    List all();

    List byExample(T exampleInstance, String... excludeProperty);

    T oneByExample(T exampleInstance, String... excludeProperty);

    @Transactional(readOnly = false)
    T makePersistent(T entity);

    @Transactional(readOnly = false)
    T makeTransient(T entity);

    @Transactional(readOnly = false)
    Collection makeTransient(Collection entity);
}