LancamentosRepository.java

package com.ufop.financeiro.repository;

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

import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.EntityTransaction;
import javax.persistence.TypedQuery;

import com.ufop.financeiro.model.Lancamento;

public class LancamentosRepository implements Serializable {

    private static final long serialVersionUID = 1L;

    private EntityManager manager;

    @Inject
    public LancamentosRepository(EntityManager manager) {
        this.manager = manager;
    }

    public List<Lancamento> all() {
        TypedQuery<Lancamento> query = manager.createQuery("from Lancamento", Lancamento.class);
        return query.getResultList();
    }

    public void adicionar(Lancamento lancamento) {
        this.manager.persist(lancamento);
    }

}