Select Where campo Data

pessoal,

Estou fazendo a query abaixo, porem esta dando erro abaixo :
GRAVE: failed.----Exception [EclipseLink-3002] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.ConversionException
Exception Description: The object [Mon Apr 01 00:00:00 BRT 2013], of class [class java.lang.String], from mapping [org.eclipse.persistence.mappings.DirectToFieldMapping[dataemi–>cadguia.dataemi]] with descriptor [RelationalDescriptor(br.uniplan.modelo.planouni.Cadguia --> [DatabaseTable(cadguia)])], could not be converted to [class java.sql.Date].
AVISO: EJB5184:A system exception occurred during an invocation on EJB CadguiaDao, method: public java.util.List br.uniplan.dao.planouni.CadguiaDao.buscacodguia(java.lang.String,java.lang.String)
AVISO: javax.ejb.EJBException

Alguem pode me ajudar ???


    public List<Object> buscacodguia(String Hora, String Data) {    
        try {      
            
            
            Date date1 = new Date("2013/04/01");
            
            
            String query = "select c.codguia, c.numtransacao from Cadguia c  where c.hora='"+Hora+"' and c.dataemi='"+date1+"'";                            
                   
            return (List<Object>) emAux.createQuery(query).getResultList();            
        }
        catch (Throwable ex) {             
                System.err.println("failed.----" + ex);  
                throw new ExceptionInInitializerError(ex);  
        }  

o campo dataemi é de qual tipo?

tipo: date

mostra a classe Cadguia.java

campo : private Date dataemi;

public class Cadguia implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Basic(optional = false)
    @Column(name = "codguia")
    private Integer codguia;
    @Size(max = 1)
    @Column(name = "tipoguia")
    private String tipoguia;
    @Column(name = "numtransacao")
    private Integer numtransacao;
    @Size(max = 1)
    @Column(name = "status")
    private String status;
    @Size(max = 1)
    @Column(name = "origem")
    private String origem;
    @Column(name = "guiaorigem")
    private Integer guiaorigem;
    @Column(name = "guiaauxiliar")
    private Integer guiaauxiliar;
    @Column(name = "dataemi")
    @Temporal(TemporalType.DATE)
    private Date dataemi;
    @Size(max = 8)
    @Column(name = "hora")
    private String hora;
    @Size(max = 30)
    @Column(name = "senha")
    private String senha;
    @Size(max = 17)
    @Column(name = "codbenef")
    private String codbenef;
    @Column(name = "codprest")
    private Integer codprest;
    @Column(name = "codsoli")
    private Integer codsoli;
    @Column(name = "codadministradora")
    private Integer codadministradora;
    @Column(name = "codadministradorareq")
    private Integer codadministradorareq;
    @Size(max = 1)
    @Column(name = "eventual")
    private String eventual;
    @Size(max = 6)
    @Column(name = "codtipcont")
    private String codtipcont;
    @Size(max = 6)
    @Column(name = "codespec")
    private String codespec;
    @Column(name = "codprestatend")
    private Integer codprestatend;
    @Size(max = 1)
    @Column(name = "tipoprestpagto")
    private String tipoprestpagto;
    @Column(name = "codprestpagto")
    private Integer codprestpagto;
    @Column(name = "tipoprestreceb")
    private Character tipoprestreceb;
    @Size(max = 17)
    @Column(name = "codprestreceb")
    private String codprestreceb;
    @Column(name = "dataini")
    @Temporal(TemporalType.DATE)
    private Date dataini;
    @Column(name = "datafim")
    @Temporal(TemporalType.DATE)
    private Date datafim;
    @Size(max = 4)
    @Column(name = "codcid")
    private String codcid;
    @Size(max = 4)
    @Column(name = "codcidsec")
    private String codcidsec;
    @Size(max = 300)
    @Column(name = "obs")
    private String obs;
    @Size(max = 300)
    @Column(name = "obs2")
    private String obs2;
    @Size(max = 1)
    @Column(name = "cancelada")
    private String cancelada;
    @Column(name = "datacanc")
    @Temporal(TemporalType.DATE)
    private Date datacanc;
    @Size(max = 4)
    @Column(name = "usucanc")
    private String usucanc;
    @Size(max = 100)
    @Column(name = "motcanc")
    private String motcanc;
    @Size(max = 6)
    @Column(name = "tipoautoriza")
    private String tipoautoriza;
    @Size(max = 1)
    @Column(name = "finalidade")
    private String finalidade;
    @Size(max = 500)
    @Column(name = "indclinica")
    private String indclinica;
    @Size(max = 1)
    @Column(name = "aptenf")
    private String aptenf;
    @Size(max = 1)
    @Column(name = "tipocons")
    private String tipocons;
    @Size(max = 1)
    @Column(name = "carater")
    private String carater;
    @Size(max = 2)
    @Column(name = "tipoatend")
    private String tipoatend;
    @Size(max = 1)
    @Column(name = "acidente")
    private String acidente;
    @Size(max = 1)
    @Column(name = "tiposaida")
    private String tiposaida;
    @Size(max = 1)
    @Column(name = "tipodoenca")
    private String tipodoenca;
    @Size(max = 4)
    @Column(name = "temdoenca")
    private String temdoenca;
    @Size(max = 1)
    @Column(name = "undoenca")
    private String undoenca;
    @Size(max = 1)
    @Column(name = "tipoparto")
    private String tipoparto;
    @Column(name = "atendrn")
    private Short atendrn;
    @Column(name = "nasctermo")
    private Short nasctermo;
    @Column(name = "nascmorto")
    private Short nascmorto;
    @Column(name = "nascprema")
    private Short nascprema;
    @Size(max = 2)
    @Column(name = "emgestacao")
    private String emgestacao;
    @Size(max = 1)
    @Column(name = "aborto")
    private String aborto;
    @Size(max = 1)
    @Column(name = "transmat")
    private String transmat;
    @Size(max = 1)
    @Column(name = "comppuerp")
    private String comppuerp;
    @Size(max = 1)
    @Column(name = "compneo")
    private String compneo;
    @Size(max = 1)
    @Column(name = "baixopeso")
    private String baixopeso;
    @Size(max = 1)
    @Column(name = "atuxml")
    private String atuxml;
    @Size(max = 1)
    @Column(name = "recebcaixa")
    private String recebcaixa;
    @Size(max = 1)
    @Column(name = "auditoria")
    private String auditoria;
    @Size(max = 1)
    @Column(name = "statusaud")
    private String statusaud;
    @Column(name = "dataaud")
    @Temporal(TemporalType.DATE)
    private Date dataaud;
    @Size(max = 200)
    @Column(name = "obsaud")
    private String obsaud;
    @Size(max = 1)
    @Column(name = "dadosentregue")
    private String dadosentregue;
    @Column(name = "dataentrega")
    @Temporal(TemporalType.DATE)
    private Date dataentrega;
    @Column(name = "codsitubloq1")
    private Integer codsitubloq1;
    @Size(max = 100)
    @Column(name = "mensagem1")
    private String mensagem1;
    @Column(name = "codsitubloq2")
    private Integer codsitubloq2;
    @Size(max = 100)
    @Column(name = "mensagem2")
    private String mensagem2;
    @Column(name = "codsitubloq3")
    private Integer codsitubloq3;
    @Size(max = 100)
    @Column(name = "mensagem3")
    private String mensagem3;
    @Column(name = "codsitubloq4")
    private Integer codsitubloq4;
    @Size(max = 100)
    @Column(name = "mensagem4")
    private String mensagem4;
    @Column(name = "codsitubloq5")
    private Integer codsitubloq5;
    @Size(max = 100)
    @Column(name = "mensagem5")
    private String mensagem5;
    @Size(max = 4)
    @Column(name = "usucod")
    private String usucod;

Evandro, que tal?

ao inves de
Date date1 = new Date(“2013/04/01”);
junte os campos data e hora num unico campo e utilize:
(new SimpleDateFormat(“yyyy-MM-dd HH:mm:ss”).parse(“SUA DATA”))?

Substitua sua query por: