14 lines
232 B
Java
14 lines
232 B
Java
package com.baeldung.dip.daos;
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import com.baeldung.dip.entities.Customer;
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import java.util.Map;
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import java.util.Optional;
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public interface CustomerDao {
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Optional<Customer> findById(int id);
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List<Customer> findAll();
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}
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