RE: HibernateEntityValueEncoder NullPointerException - Composite/Compund Primary Key Issue
Kalle,
i really greatly appreciate the help that Lance Java provided to me (incredibly
helpful, explained things, linked to documents, provided code examples and
snippets, really one of the best bitys of help I've ever gotten from the
StackOverflow community), but at this point, i'm going to push for adding an id
column to the database table and testing that change against existing
functionality. this ValueEncoder approach is becoming untenable, as i have to
keep an eye to the future for maintenance, etc. i'm absolutely not trying to
create a crud project where sql must be manually written, and i need to have
others on my team be able to maintain and extend the initial functionality i'm
building out right now. while this may eventually work with enough tinkering,
it's become evident to me that what should be a very simple project is becoming
complex, and I would really like to avoid that.
Again, thanks to LanceJava for his incredible help.
– aaron witt –
-Original Message-
From: Kalle Korhonen [mailto:kalle.o.korho...@gmail.com]
Sent: Wednesday, January 21, 2015 7:15 PM
To: Tapestry users
Subject: Re: HibernateEntityValueEncoder NullPointerException -
Composite/Compund Primary Key Issue
I see Lance already answered to your question on Stackoverflow. Follow his
advice and make sure you contribute the encoder. After that, you may hit
another issues with tynamo not recognizing @IdClass (see an old issue
https://jira.codehaus.org/browse/TYNAMO-168), whether it matters to you, I'm
not sure. I've used IdClasses before but not extensively, and don't recall
whether I've had them on tynamo-model or if I've simply ignored them from it.
As both Thiago and Lance mentioned, it's best to avoid composite keys with
Hibernate but I'm pretty sure you can get it to work if you need to. I'm always
happy to apply patches and please open an issue on github (
https://github.com/tynamo/tapestry-model) if you hit a specific issue with
tynamo-model (you may but you are not there yet :P ).
Kalle
On Tue, Jan 20, 2015 at 11:43 AM, Witt, Aaron aaron.w...@alliancedata.com
wrote:
Hi Tapestry Users,
I'm using a CRUD framework called Tynamo, which in turn relies on
Apache Tapestry and Hibernate. This all works fine, except for when I
try to use it for CRUD on a table with a composite/compound primary key.
I've decided not to go the @EmbeddedId route, since it seems to not
work at all with the framework. That being said, I have been using the
@IdClass method, which is mostly working; I think I'm a line or two of
code away from success.
The issue is that when it starts using reflection to build the
objects, it blows up and says,
org.apache.tapestry5.ioc.internal.util.TapestryException, caused by
java.lang.NullPointerException at
org.apache.tapestry5.internal.hibernate.HibernateEntityValueEncoder.init(HibernateEntityValueEncoder.java:51).
I honestly have no idea what's the deal here, but since I have normal
table CRUD operation working for numerous other tables, I would assume
this is somehow related to this table using a composite/compound primary key.
One thing I did try was to move the static inner class to its own
package and remove the staticclass modifier, but the exact same error
occurred.
You can see my class below:
package com.company.crud.entities;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.IdClass;
import
com.company.crud.entities.TransferExtension.TransferExtensionPK;
@Entity(name = Transfer_Extensions)
@IdClass(TransferExtensionPK.class)
public class TransferExtension implements Serializable {
private static final long serialVersionUID = 1L;
@Id
// @NotNull(message = Please supply a Script Code)
// @Length(min = 3, max = 4)
@Column(name = Division, nullable = false)
private String scriptCode;
@Id
// @NotNull(message = Please supply a Transfer Type)
// @Length(min = 3, max = 6)
@Column(name = Transfer_Type, nullable = false)
private String transferType;
@Column(name = Extension, nullable = true)
private String englishExtension;
@Column(name = Span_Extension, nullable = true)
private String spanishExtension;
@Column(name = Call_Type, nullable = true)
private String callType;
@Column(name = Call_Center, nullable = true)
private String callCenter;
public TransferExtension() {
}
public TransferExtension(String scriptCode, String transferType,
String englishExtension, String spanishExtension, String
callType,
String callCenter) {
this.callCenter = callCenter;
this.callType = callType;
this.englishExtension = englishExtension;
this.scriptCode = scriptCode;
this.spanishExtension
RE: HibernateEntityValueEncoder NullPointerException - Composite/Compund Primary Key Issue
Thanks, Kalle! I'm still trying to work through it, so you're right, if I
need/request a patch, I'm not quite there yet. I'll be in touch as I figure
this out, I appreciate the help!
– aaron witt –
-Original Message-
From: Kalle Korhonen [mailto:kalle.o.korho...@gmail.com]
Sent: Wednesday, January 21, 2015 7:15 PM
To: Tapestry users
Subject: Re: HibernateEntityValueEncoder NullPointerException -
Composite/Compund Primary Key Issue
I see Lance already answered to your question on Stackoverflow. Follow his
advice and make sure you contribute the encoder. After that, you may hit
another issues with tynamo not recognizing @IdClass (see an old issue
https://jira.codehaus.org/browse/TYNAMO-168), whether it matters to you, I'm
not sure. I've used IdClasses before but not extensively, and don't recall
whether I've had them on tynamo-model or if I've simply ignored them from it.
As both Thiago and Lance mentioned, it's best to avoid composite keys with
Hibernate but I'm pretty sure you can get it to work if you need to. I'm always
happy to apply patches and please open an issue on github (
https://github.com/tynamo/tapestry-model) if you hit a specific issue with
tynamo-model (you may but you are not there yet :P ).
Kalle
On Tue, Jan 20, 2015 at 11:43 AM, Witt, Aaron aaron.w...@alliancedata.com
wrote:
Hi Tapestry Users,
I'm using a CRUD framework called Tynamo, which in turn relies on
Apache Tapestry and Hibernate. This all works fine, except for when I
try to use it for CRUD on a table with a composite/compound primary key.
I've decided not to go the @EmbeddedId route, since it seems to not
work at all with the framework. That being said, I have been using the
@IdClass method, which is mostly working; I think I'm a line or two of
code away from success.
The issue is that when it starts using reflection to build the
objects, it blows up and says,
org.apache.tapestry5.ioc.internal.util.TapestryException, caused by
java.lang.NullPointerException at
org.apache.tapestry5.internal.hibernate.HibernateEntityValueEncoder.init(HibernateEntityValueEncoder.java:51).
I honestly have no idea what's the deal here, but since I have normal
table CRUD operation working for numerous other tables, I would assume
this is somehow related to this table using a composite/compound primary key.
One thing I did try was to move the static inner class to its own
package and remove the staticclass modifier, but the exact same error
occurred.
You can see my class below:
package com.company.crud.entities;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.IdClass;
import
com.company.crud.entities.TransferExtension.TransferExtensionPK;
@Entity(name = Transfer_Extensions)
@IdClass(TransferExtensionPK.class)
public class TransferExtension implements Serializable {
private static final long serialVersionUID = 1L;
@Id
// @NotNull(message = Please supply a Script Code)
// @Length(min = 3, max = 4)
@Column(name = Division, nullable = false)
private String scriptCode;
@Id
// @NotNull(message = Please supply a Transfer Type)
// @Length(min = 3, max = 6)
@Column(name = Transfer_Type, nullable = false)
private String transferType;
@Column(name = Extension, nullable = true)
private String englishExtension;
@Column(name = Span_Extension, nullable = true)
private String spanishExtension;
@Column(name = Call_Type, nullable = true)
private String callType;
@Column(name = Call_Center, nullable = true)
private String callCenter;
public TransferExtension() {
}
public TransferExtension(String scriptCode, String transferType,
String englishExtension, String spanishExtension, String
callType,
String callCenter) {
this.callCenter = callCenter;
this.callType = callType;
this.englishExtension = englishExtension;
this.scriptCode = scriptCode;
this.spanishExtension = spanishExtension;
this.transferType = transferType;
}
public String getScriptCode() {
return this.scriptCode;
}
public void setScriptCode(String scriptCode) {
this.scriptCode = scriptCode;
}
public String getTransferType() {
return this.transferType;
}
public void setTransferType(String transferType) {
this.transferType = transferType;
}
public String getEnglishExtension() {
return this.englishExtension;
}
public void setEnglishExtension(String englishExtension) {
this.englishExtension = englishExtension;
}
public String getSpanishExtension() {
return this.spanishExtension;
}
public void
HibernateEntityValueEncoder NullPointerException - Composite/Compund Primary Key Issue
Hi Tapestry Users,
I'm using a CRUD framework called Tynamo, which in turn relies on Apache
Tapestry and Hibernate. This all works fine, except for when I try to use it
for CRUD on a table with a composite/compound primary key.
I've decided not to go the @EmbeddedId route, since it seems to not work at all
with the framework. That being said, I have been using the @IdClass method,
which is mostly working; I think I'm a line or two of code away from success.
The issue is that when it starts using reflection to build the objects, it
blows up and says, org.apache.tapestry5.ioc.internal.util.TapestryException,
caused by java.lang.NullPointerException at
org.apache.tapestry5.internal.hibernate.HibernateEntityValueEncoder.init(HibernateEntityValueEncoder.java:51).
I honestly have no idea what's the deal here, but since I have normal table
CRUD operation working for numerous other tables, I would assume this is
somehow related to this table using a composite/compound primary key.
One thing I did try was to move the static inner class to its own package and
remove the staticclass modifier, but the exact same error occurred.
You can see my class below:
package com.company.crud.entities;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.IdClass;
import com.company.crud.entities.TransferExtension.TransferExtensionPK;
@Entity(name = Transfer_Extensions)
@IdClass(TransferExtensionPK.class)
public class TransferExtension implements Serializable {
private static final long serialVersionUID = 1L;
@Id
// @NotNull(message = Please supply a Script Code)
// @Length(min = 3, max = 4)
@Column(name = Division, nullable = false)
private String scriptCode;
@Id
// @NotNull(message = Please supply a Transfer Type)
// @Length(min = 3, max = 6)
@Column(name = Transfer_Type, nullable = false)
private String transferType;
@Column(name = Extension, nullable = true)
private String englishExtension;
@Column(name = Span_Extension, nullable = true)
private String spanishExtension;
@Column(name = Call_Type, nullable = true)
private String callType;
@Column(name = Call_Center, nullable = true)
private String callCenter;
public TransferExtension() {
}
public TransferExtension(String scriptCode, String transferType,
String englishExtension, String spanishExtension, String callType,
String callCenter) {
this.callCenter = callCenter;
this.callType = callType;
this.englishExtension = englishExtension;
this.scriptCode = scriptCode;
this.spanishExtension = spanishExtension;
this.transferType = transferType;
}
public String getScriptCode() {
return this.scriptCode;
}
public void setScriptCode(String scriptCode) {
this.scriptCode = scriptCode;
}
public String getTransferType() {
return this.transferType;
}
public void setTransferType(String transferType) {
this.transferType = transferType;
}
public String getEnglishExtension() {
return this.englishExtension;
}
public void setEnglishExtension(String englishExtension) {
this.englishExtension = englishExtension;
}
public String getSpanishExtension() {
return this.spanishExtension;
}
public void setSpanishExtension(String spanishExtension) {
this.spanishExtension = spanishExtension;
}
public String getCallType() {
return this.callType;
}
public void setCallType(String callType) {
this.callType = callType;
}
public String getCallCenter() {
return this.callCenter;
}
public void setCallCenter(String callCenter) {
this.callCenter = callCenter;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append(TransferExtension [scriptCode=)
.append(this.scriptCode).append(, transferType=)
.append(this.transferType).append(, englishExtension=)
.append(this.englishExtension).append(, spanishExtension=)
.append(this.spanishExtension).append(, callType=)
.append(this.callType).append(, callCenter=)
.append(this.callCenter).append(]);
return builder.toString();
}
public static class TransferExtensionPK implements Serializable {
private static final long serialVersionUID = 4L;
private String scriptCode;
private String transferType;
public TransferExtensionPK() {
}
public TransferExtensionPK(String scriptCode, String transferType) {
this.scriptCode = scriptCode;
