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From "Frank" <faro...@hotmail.com>
Subject Re: How do I query a joined table in cayenne?
Date Tue, 27 Feb 2007 16:42:58 GMT
ok,

Thanks Mike...

Frank
----- Original Message ----- 
From: "Mike Kienenberger" <mkienenb@gmail.com>
To: <user@cayenne.apache.org>
Sent: Tuesday, February 27, 2007 11:39 AM
Subject: Re: How do I query a joined table in cayenne?


> Sorry, you'll have to ask on the Click mailing list for click-specific 
> issues.
>
> The code I sent you will work in a generic Cayenne environment.  Try
> it out and see.
> It's only a couple more lines of code to perform query once you have
> the expression built.
>
> On 2/27/07, Frank <farocco@hotmail.com> wrote:
>> In Click, this should map to the department name.
>> departments.pcldds
>>
>> I would load the table column like this
>> column = new Column("departments.pcldds")
>> I think Click would translate this to
>> getDepartments().getPcldds()
>>
>> I tried various combinations and nothing seems to work.
>> My query select does not show a join
>> here is the output:
>>
>> INFO  QueryLogger: SELECT t0.EMEMP#, t0.EMWPH#, t0.EMYFNM, t0.EMYLNM,
>> t0.EMHSP#, t0.EMDEP4 FROM BSYDTAA.BSYPEMP t0 WHERE (t0.EMHSP# IN (?, ?)) 
>> AND
>> (UPPER(RTRIM(t0.EMYLNM)) LIKE UPPER(CAST (? AS VARCHAR(25)))) AND
>> (UPPER(RTRIM(t0.EMYFNM)) LIKE UPPER(CAST (? AS VARCHAR(15)))) [bind: 1, 
>> 5,
>> '%', '%'] - prepared in 31 ms.
>>
>> Frank
>>
>> ----- Original Message -----
>> From: "Mike Kienenberger" <mkienenb@gmail.com>
>> To: <user@cayenne.apache.org>
>> Sent: Tuesday, February 27, 2007 10:58 AM
>> Subject: Re: How do I query a joined table in cayenne?
>>
>>
>> >I don't understand what
>> >
>> > column = new Column("toDepartments().getPcldds()")
>> >
>> > is supposed to do.
>> >
>> > Also, my examples may not exactly match your model.  It looks like
>> > your "toDepartments()" relationship is actually "departments()".
>> > Adjust accordingly.
>> >
>> > public static final String DEPARTMENTS_PROPERTY = "departments";
>> >
>> >
>> > On 2/27/07, Frank <farocco@hotmail.com> wrote:
>> >> I still get an error
>> >> Is this right?
>> >>
>> >> No matching getter method found for property toDepartments() on class
>> >> stemc.cayenne.as400.Bsypemp
>> >> column = new Column("toDepartments().getPcldds()");
>> >>
>> >> Frank
>> >> ----- Original Message -----
>> >> From: "Mike Kienenberger" <mkienenb@gmail.com>
>> >> To: <user@cayenne.apache.org>
>> >> Sent: Tuesday, February 27, 2007 10:44 AM
>> >> Subject: Re: How do I query a joined table in cayenne?
>> >>
>> >>
>> >> > You'd show in the table:
>> >> >
>> >> > getFirstName()
>> >> > getLastName()
>> >> > toDepartment().getDeptName()
>> >> >
>> >> > You would search on:
>> >> >
>> >> > andExp() of the following:
>> >> >
>> >> > ExpressionFactory.matchExp(Bsypemp.FIRST_NAME_PROPERTY, firstName)
>> >> >
>> >> > ExpressionFactory.matchExp(Bsypemp.LAST_NAME_PROPERTY, lastName)
>> >> >
>> >> > ExpressionFactory.matchExp(Bsypemp.TO_DEPARTMENT_PROPERTY + "." +
>> >> > bprppcp.DEPT_NAME_PROPERTY, deptName)
>> >> >
>> >> >
>> >> > On 2/27/07, Frank <farocco@hotmail.com> wrote:
>> >> >> If I have two files joined:
>> >> >> bsypemp
>> >> >>     firstName
>> >> >>     LastName
>> >> >>     deptno
>> >> >> bprppcp
>> >> >>     deptno
>> >> >>     deptName
>> >> >>
>> >> >> I want to list in my table:
>> >> >>     firstName
>> >> >>     LastName
>> >> >>     deptName
>> >> >>
>> >> >> I want to search on
>> >> >>     firstName
>> >> >>     LastName
>> >> >>     deptName
>> >> >>
>> >> >> as long as I do not reference the deptName, my table loads fine.
>> >> >> What am I doing wrong?
>> >> >>
>> >> >> Regards,
>> >> >> Frank
>> >> >> ----- Original Message -----
>> >> >> From: "Mike Kienenberger" <mkienenb@gmail.com>
>> >> >> To: <user@cayenne.apache.org>
>> >> >> Sent: Tuesday, February 27, 2007 10:29 AM
>> >> >> Subject: Re: How do I query a joined table in cayenne?
>> >> >>
>> >> >>
>> >> >> > Are you just trying to find an object by the property on a

>> >> >> > related
>> >> >> > object?
>> >> >> >
>> >> >> > ExpressionFactory.matchExp(Contact.PRIMARY_CONTACT_NAME_PROPERTY

>> >> >> > +
>> >> >> > "."
>> >> >> > + ContactName.FIRST_NAME_PROPERTY, firstName)
>> >> >> >
>> >> >> > For example, if you're trying to find an employee by department
>> >> >> > name,
>> >> >> >
>> >> >> > ExpressionFactory.matchExp(Employee.DEPARTMENT_PROPERTY +
"." +
>> >> >> > Department.NAME_PROPERTY, targetDepartmentName)
>> >> >> >
>> >> >> > You can chain together as many relationships as you like,
but be
>> >> >> > aware
>> >> >> > of potential outer join issues if there's any chance that
one of 
>> >> >> > the
>> >> >> > relationships may be null.
>> >> >> >
>> >> >> > For example, here's a fun one that operates on two different

>> >> >> > kinds
>> >> >> > of
>> >> >> > entities, with parts of the expression path being built
>> >> >> > conditionally:
>> >> >> >
>> >> >> > ===========================================================
>> >> >> >        String pathToFeePrefix;
>> >> >> >        String pathToFeePaymentHistoryPrefix;
>> >> >> >        Class searchEntityClass;
>> >> >> >        if (searchByFeeInsteadOfFeePaymentReceipt)
>> >> >> >        {
>> >> >> >        pathToFeePrefix = "";
>> >> >> >            pathToFeePaymentHistoryPrefix =
>> >> >> > Fee.FEE_PAYMENT_RECEIPT_LIST_PROPERTY + ".";
>> >> >> >            searchEntityClass =
>> >> >> > com.gvea.eng_work_mgmt.entity.cayenne.Fee.class;
>> >> >> >        }
>> >> >> >        else
>> >> >> >        {
>> >> >> >        pathToFeePrefix = FeePaymentReceipt.FEE_PROPERTY +
".";
>> >> >> >            pathToFeePaymentHistoryPrefix = "";
>> >> >> >            searchEntityClass =
>> >> >> > com.gvea.eng_work_mgmt.entity.cayenne.FeePaymentReceipt.class;
>> >> >> >        }
>> >> >> >
>> >> >> >
>> >> >> > [... one example usage...]
>> >> >> >
>> >> >> >
>> >> >> > oredExpressionList.add(ExpressionFactory.matchExp(pathToFeePrefix

>> >> >> > +
>> >> >> > Fee.FEE_CYCLE_PROPERTY + "."
>> >> >> >                + FeeCycle.INITIAL_AUTHORIZATION_DOCUMENT_PROPERTY

>> >> >> > +
>> >> >> > "."
>> >> >> >                +
>> >> >> > AuthorizationDocument.DEPENDENT_PERMIT_DOCUMENT_PROPERTY +
"."
>> >> >> >                + PermitDocument.AGENCY_PROPERTY, agency));
>> >> >> > ===========================================================
>> >> >> >
>> >> >> >
>> >> >> > On 2/26/07, Frank <farocco@hotmail.com> wrote:
>> >> >> >> Hi Mike,
>> >> >> >>
>> >> >> >> Here is my orginal jdbc version of select
>> >> >> >>
>> >> >> >> String sql = "SELECT BSYDTAA.BSYPEMP.EMHSP# AS HSP,
>> >> >> >> BSYDTAA.BSYPEMP.EMYLNM,
>> >> >> >> BSYDTAA.BSYPEMP.EMYFNM, BSYDTAC.BPRPPCP.PCDEP4,
>> >> >> >> BSYDTAC.BPRPPCP.PCLDDS,
>> >> >> >> BSYDTAA.BSYPEMP.EMEMP# AS EMEMP, BSYDTAA.BSYPEMP.EMWPH#
AS 
>> >> >> >> WPHONE,
>> >> >> >> BSYDTAA.BSYPEMP.EMSCH, BSYDTAA.BSYPEMP.EMOTSH FROM 
>> >> >> >> BSYDTAA.BSYPEMP,
>> >> >> >> BSYDTAC.BPRPPCP WHERE BSYDTAA.BSYPEMP.EMHSP# =
>> >> >> >> BSYDTAC.BPRPPCP.PCHSP#
>> >> >> >> AND
>> >> >> >> BSYDTAA.BSYPEMP.EMDEP4 = BSYDTAC.BPRPPCP.PCDEP4 AND
>> >> >> >> (BSYDTAA.BSYPEMP.EMHSP#
>> >> >> >> IN (1,5)) AND (BSYDTAA.BSYPEMP.EMDOT=0)";
>> >> >> >>             sql += " AND EMYLNM like ?";
>> >> >> >>             sql += " AND EMYFNM like ?";
>> >> >> >>             sql += " AND PCLDDS like ?";
>> >> >> >>             sql += " AND PCDEP4 like ?";
>> >> >> >>             sql += " ORDER BY EMYLNM";
>> >> >> >>
>> >> >> >> I can just do this:
>> >> >> >> rs = pstmt.executeQuery();
>> >> >> >> rs.getString("PCLDDS");
>> >> >> >> to get the department name.
>> >> >> >>
>> >> >> >> In Cayenne I do not understand how to limit records by

>> >> >> >> department
>> >> >> >> name
>> >> >> >>    Integer[] hspArray = {new Integer(1), new Integer(5)};
>> >> >> >>      Expression e =
>> >> >> >> ExpressionFactory.inDbExp(Bsypemp.EMHSPPOUND_PK_COLUMN,
>> >> >> >> hspArray);
>> >> >> >>         e =
>> >> >> >> e.andExp(ExpressionFactory.likeIgnoreCaseExp(Bsypemp.EMYLNM_PROPERTY,
>> >> >> >> lname
>> >> >> >>         +"%"));
>> >> >> >>         e =
>> >> >> >> e.andExp(ExpressionFactory.likeIgnoreCaseExp(Bsypemp.EMYFNM_PROPERTY,
>> >> >> >> fname
>> >> >> >>                 +"%"));
>> >> >> >>        // I'm lost here e =
>> >> >> >> e.andExp(ExpressionFactory.likeIgnoreCaseExp(Bsypemp.class.DEPARTMENTS_PROPERTY,
>> >> >> >> pcldds
>> >> >> >>        //         +"%"));
>> >> >> >>
>> >> >> >>      SelectQuery query = new SelectQuery(Bsypemp.class,e);
>> >> >> >>      List records = context.performQuery(query);
>> >> >> >>
>> >> >> >> Thanks
>> >> >> >> Frank
>> >> >> >> ----- Original Message -----
>> >> >> >> From: "Mike Kienenberger" <mkienenb@gmail.com>
>> >> >> >> To: <user@cayenne.apache.org>
>> >> >> >> Sent: Friday, February 23, 2007 10:02 PM
>> >> >> >> Subject: Re: How do I query a joined table in cayenne?
>> >> >> >>
>> >> >> >>
>> >> >> >> >I don't follow what you're trying to do.
>> >> >> >> > Can you give an example of what you expect the sql
to look 
>> >> >> >> > like
>> >> >> >> > when
>> >> >> >> > you're done, and give some example data so I can
understand 
>> >> >> >> > what
>> >> >> >> > you're trying to do?
>> >> >> >> >
>> >> >> >> > On 2/23/07, Frank <farocco@hotmail.com> wrote:
>> >> >> >> >> Hello,
>> >> >> >> >>
>> >> >> >> >> I cannot figure out how to query the pcldds,
pcdep4 fields
>> >> >> >> >> What am I doing wrong?
>> >> >> >> >>
>> >> >> >> >> Thanks
>> >> >> >> >>
>> >> >> >> >> Frank
>> >> >> >> >>
>> >> >> >> >> ** Java Code Start
>> >> >> >> >>  DataContext context = DataContext.getThreadDataContext();
>> >> >> >> >>      Integer[] hspArray = {new Integer(1), new
Integer(5)};
>> >> >> >> >>      Expression e =
>> >> >> >> >> ExpressionFactory.inDbExp(Bsypemp.EMHSPPOUND_PK_COLUMN,
>> >> >> >> >> hspArray);
>> >> >> >> >>         e =
>> >> >> >> >> e.andExp(ExpressionFactory.likeIgnoreCaseExp(Bsypemp.EMYLNM_PROPERTY,
>> >> >> >> >> lname
>> >> >> >> >>         +"%"));
>> >> >> >> >>         e =
>> >> >> >> >> e.andExp(ExpressionFactory.likeIgnoreCaseExp(Bsypemp.EMYFNM_PROPERTY,
>> >> >> >> >> fname
>> >> >> >> >>                 +"%"));
>> >> >> >> >>        // I'm lost here e =
>> >> >> >> >> e.andExp(ExpressionFactory.likeIgnoreCaseExp(Bsypemp.class.DEPARTMENTS_PROPERTY,
>> >> >> >> >> pcldds
>> >> >> >> >>        //         +"%"));
>> >> >> >> >>
>> >> >> >> >>      SelectQuery query = new SelectQuery(Bsypemp.class,e);
>> >> >> >> >>      List records = context.performQuery(query);
>> >> >> >> >> ** Java Code End
>> >> >> >> >>
>> >> >> >> >> Here is my first class
>> >> >> >> >> package stemc.cayenne.as400.auto;
>> >> >> >> >>
>> >> >> >> >> /** Class _Bsypemp was generated by Cayenne.
>> >> >> >> >>   * It is probably a good idea to avoid changing
this class
>> >> >> >> >> manually,
>> >> >> >> >>   * since it may be overwritten next time code
is 
>> >> >> >> >> regenerated.
>> >> >> >> >>   * If you need to make any customizations, please
use 
>> >> >> >> >> subclass.
>> >> >> >> >>   */
>> >> >> >> >> public class _Bsypemp extends
>> >> >> >> >> org.objectstyle.cayenne.CayenneDataObject {
>> >> >> >> >>
>> >> >> >> >>     public static final String E_MEMPPOUND_PROPERTY
=
>> >> >> >> >> "eMEMPpound";
>> >> >> >> >>     public static final String E_MWPHPOUND_PROPERTY
=
>> >> >> >> >> "eMWPHpound";
>> >> >> >> >>     public static final String EMOTSH_PROPERTY
= "emotsh";
>> >> >> >> >>     public static final String EMSCH_PROPERTY
= "emsch";
>> >> >> >> >>     public static final String EMYFNM_PROPERTY
= "emyfnm";
>> >> >> >> >>     public static final String EMYLNM_PROPERTY
= "emylnm";
>> >> >> >> >>     public static final String DEPARTMENTS_PROPERTY
=
>> >> >> >> >> "departments";
>> >> >> >> >>
>> >> >> >> >>     public static final String EMEMPPOUND_PK_COLUMN
= 
>> >> >> >> >> "EMEMP#";
>> >> >> >> >>     public static final String EMHSPPOUND_PK_COLUMN
= 
>> >> >> >> >> "EMHSP#";
>> >> >> >> >>
>> >> >> >> >>     public void setEMEMPpound(java.math.BigDecimal

>> >> >> >> >> eMEMPpound) {
>> >> >> >> >>         writeProperty("eMEMPpound", eMEMPpound);
>> >> >> >> >>     }
>> >> >> >> >>     public java.math.BigDecimal getEMEMPpound()
{
>> >> >> >> >>         return 
>> >> >> >> >> (java.math.BigDecimal)readProperty("eMEMPpound");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>     public void setEMWPHpound(java.math.BigDecimal

>> >> >> >> >> eMWPHpound) {
>> >> >> >> >>         writeProperty("eMWPHpound", eMWPHpound);
>> >> >> >> >>     }
>> >> >> >> >>     public java.math.BigDecimal getEMWPHpound()
{
>> >> >> >> >>         return 
>> >> >> >> >> (java.math.BigDecimal)readProperty("eMWPHpound");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>     public void setEmotsh(String emotsh) {
>> >> >> >> >>         writeProperty("emotsh", emotsh);
>> >> >> >> >>     }
>> >> >> >> >>     public String getEmotsh() {
>> >> >> >> >>         return (String)readProperty("emotsh");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>     public void setEmsch(String emsch) {
>> >> >> >> >>         writeProperty("emsch", emsch);
>> >> >> >> >>     }
>> >> >> >> >>     public String getEmsch() {
>> >> >> >> >>         return (String)readProperty("emsch");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>     public void setEmyfnm(String emyfnm) {
>> >> >> >> >>         writeProperty("emyfnm", emyfnm);
>> >> >> >> >>     }
>> >> >> >> >>     public String getEmyfnm() {
>> >> >> >> >>         return (String)readProperty("emyfnm");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>     public void setEmylnm(String emylnm) {
>> >> >> >> >>         writeProperty("emylnm", emylnm);
>> >> >> >> >>     }
>> >> >> >> >>     public String getEmylnm() {
>> >> >> >> >>         return (String)readProperty("emylnm");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>     public void setDepartments(stemc.cayenne.as400.Bprppcp
>> >> >> >> >> departments) {
>> >> >> >> >>         setToOneTarget("departments", departments,
true);
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>     public stemc.cayenne.as400.Bprppcp getDepartments()
{
>> >> >> >> >>         return
>> >> >> >> >> (stemc.cayenne.as400.Bprppcp)readProperty("departments");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >> }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >> Here is my second class
>> >> >> >> >> package stemc.cayenne.as400.auto;
>> >> >> >> >>
>> >> >> >> >> /** Class _Bprppcp was generated by Cayenne.
>> >> >> >> >>   * It is probably a good idea to avoid changing
this class
>> >> >> >> >> manually,
>> >> >> >> >>   * since it may be overwritten next time code
is 
>> >> >> >> >> regenerated.
>> >> >> >> >>   * If you need to make any customizations, please
use 
>> >> >> >> >> subclass.
>> >> >> >> >>   */
>> >> >> >> >> public class _Bprppcp extends
>> >> >> >> >> org.objectstyle.cayenne.CayenneDataObject {
>> >> >> >> >>
>> >> >> >> >>     public static final String PCDEP4_PROPERTY
= "pcdep4";
>> >> >> >> >>     public static final String PCINA_PROPERTY
= "pcina";
>> >> >> >> >>     public static final String PCLDDS_PROPERTY
= "pcldds";
>> >> >> >> >>     public static final String PCSDDS_PROPERTY
= "pcsdds";
>> >> >> >> >>
>> >> >> >> >>     public static final String PCDEP4_PK_COLUMN
= "PCDEP4";
>> >> >> >> >>     public static final String PCHSPPOUND_PK_COLUMN
= 
>> >> >> >> >> "PCHSP#";
>> >> >> >> >>
>> >> >> >> >>     public void setPcdep4(java.math.BigDecimal
pcdep4) {
>> >> >> >> >>         writeProperty("pcdep4", pcdep4);
>> >> >> >> >>     }
>> >> >> >> >>     public java.math.BigDecimal getPcdep4() {
>> >> >> >> >>         return (java.math.BigDecimal)readProperty("pcdep4");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>     public void setPcina(String pcina) {
>> >> >> >> >>         writeProperty("pcina", pcina);
>> >> >> >> >>     }
>> >> >> >> >>     public String getPcina() {
>> >> >> >> >>         return (String)readProperty("pcina");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>     public void setPcldds(String pcldds) {
>> >> >> >> >>         writeProperty("pcldds", pcldds);
>> >> >> >> >>     }
>> >> >> >> >>     public String getPcldds() {
>> >> >> >> >>         return (String)readProperty("pcldds");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>     public void setPcsdds(String pcsdds) {
>> >> >> >> >>         writeProperty("pcsdds", pcsdds);
>> >> >> >> >>     }
>> >> >> >> >>     public String getPcsdds() {
>> >> >> >> >>         return (String)readProperty("pcsdds");
>> >> >> >> >>     }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >> }
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >
>> >> >> >>
>> >> >> >>
>> >> >> >
>> >> >>
>> >> >>
>> >> >
>> >>
>> >>
>> >
>>
>>
> 


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