How to store a collection of strings in jdo apache isis without joins
I wanted to store a set of strings which are not available in any other table in the schema. For example,
I have a table with country_id, country_name and animals
The column animals need to be a Collection (Set or List) and the animals in the list are not available in any other table of the schema. They are just plain java strings. I went through the link here. But it only mentions the ways to store a collection of objects that are available as a column in another table. Any help would be much appreciated. Thanks in advance. Cheers!
jdo isis
asked Nov 15 '18 at 5:38
Sathiya NarayananSathiya Narayanan
159112
add a comment |
I wanted to store a set of strings which are not available in any other table in the schema. For example,
I have a table with country_id, country_name and animals
The column animals need to be a Collection (Set or List) and the animals in the list are not available in any other table of the schema. They are just plain java strings. I went through the link here. But it only mentions the ways to store a collection of objects that are available as a column in another table. Any help would be much appreciated. Thanks in advance. Cheers!
jdo isis
asked Nov 15 '18 at 5:38
Sathiya NarayananSathiya Narayanan
159112
add a comment |
I wanted to store a set of strings which are not available in any other table in the schema. For example,
I have a table with country_id, country_name and animals
The column animals need to be a Collection (Set or List) and the animals in the list are not available in any other table of the schema. They are just plain java strings. I went through the link here. But it only mentions the ways to store a collection of objects that are available as a column in another table. Any help would be much appreciated. Thanks in advance. Cheers!
jdo isis
asked Nov 15 '18 at 5:38
Sathiya NarayananSathiya Narayanan
159112
I wanted to store a set of strings which are not available in any other table in the schema. For example,
I have a table with country_id, country_name and animals
The column animals need to be a Collection (Set or List) and the animals in the list are not available in any other table of the schema. They are just plain java strings. I went through the link here. But it only mentions the ways to store a collection of objects that are available as a column in another table. Any help would be much appreciated. Thanks in advance. Cheers!
jdo isis
jdo isis
asked Nov 15 '18 at 5:38
Sathiya NarayananSathiya Narayanan
159112
asked Nov 15 '18 at 5:38
Sathiya NarayananSathiya Narayanan
159112
asked Nov 15 '18 at 5:38
Sathiya NarayananSathiya Narayanan
159112
asked Nov 15 '18 at 5:38
Sathiya NarayananSathiya Narayanan
159112
asked Nov 15 '18 at 5:38
Sathiya NarayananSathiya Narayanan
159112
159112
add a comment |
add a comment |
1 Answer
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Just use a JDO AttributeConverter, and the Collection field can be converted into a String for example (stored in a single column). As per the docs
Thanks for the prompt reply. I tried using the class but I keep getting error that the package cannot be resolved. Which package should I use?
– Sathiya Narayanan
Nov 22 '18 at 3:41
It is part of JDO 3.2, so you need to be using that
– user3973283
Nov 22 '18 at 7:07
Thanks I will try it and accept your answer
– Sathiya Narayanan
Nov 22 '18 at 7:49
You will need to use Apache Isis 2.0.0-M1 or later, because that uses DN 5.x and JDO 3.2
– Dan Haywood
Dec 26 '18 at 10:37
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Just use a JDO AttributeConverter, and the Collection field can be converted into a String for example (stored in a single column). As per the docs
Thanks for the prompt reply. I tried using the class but I keep getting error that the package cannot be resolved. Which package should I use?
– Sathiya Narayanan
Nov 22 '18 at 3:41
It is part of JDO 3.2, so you need to be using that
– user3973283
Nov 22 '18 at 7:07
Thanks I will try it and accept your answer
– Sathiya Narayanan
Nov 22 '18 at 7:49
You will need to use Apache Isis 2.0.0-M1 or later, because that uses DN 5.x and JDO 3.2
– Dan Haywood
Dec 26 '18 at 10:37
add a comment |
Just use a JDO AttributeConverter, and the Collection field can be converted into a String for example (stored in a single column). As per the docs
Thanks for the prompt reply. I tried using the class but I keep getting error that the package cannot be resolved. Which package should I use?
– Sathiya Narayanan
Nov 22 '18 at 3:41
It is part of JDO 3.2, so you need to be using that
– user3973283
Nov 22 '18 at 7:07
Thanks I will try it and accept your answer
– Sathiya Narayanan
Nov 22 '18 at 7:49
You will need to use Apache Isis 2.0.0-M1 or later, because that uses DN 5.x and JDO 3.2
– Dan Haywood
Dec 26 '18 at 10:37
add a comment |
Just use a JDO AttributeConverter, and the Collection field can be converted into a String for example (stored in a single column). As per the docs
Just use a JDO AttributeConverter, and the Collection field can be converted into a String for example (stored in a single column). As per the docs
answered Nov 15 '18 at 18:38
user3973283
Thanks for the prompt reply. I tried using the class but I keep getting error that the package cannot be resolved. Which package should I use?
– Sathiya Narayanan
Nov 22 '18 at 3:41
It is part of JDO 3.2, so you need to be using that
– user3973283
Nov 22 '18 at 7:07
Thanks I will try it and accept your answer
– Sathiya Narayanan
Nov 22 '18 at 7:49
You will need to use Apache Isis 2.0.0-M1 or later, because that uses DN 5.x and JDO 3.2
– Dan Haywood
Dec 26 '18 at 10:37
add a comment |
Thanks for the prompt reply. I tried using the class but I keep getting error that the package cannot be resolved. Which package should I use?
– Sathiya Narayanan
Nov 22 '18 at 3:41
It is part of JDO 3.2, so you need to be using that
– user3973283
Nov 22 '18 at 7:07
Thanks I will try it and accept your answer
– Sathiya Narayanan
Nov 22 '18 at 7:49
You will need to use Apache Isis 2.0.0-M1 or later, because that uses DN 5.x and JDO 3.2
– Dan Haywood
Dec 26 '18 at 10:37
Thanks for the prompt reply. I tried using the class but I keep getting error that the package cannot be resolved. Which package should I use?
– Sathiya Narayanan
Nov 22 '18 at 3:41
Thanks for the prompt reply. I tried using the class but I keep getting error that the package cannot be resolved. Which package should I use?
– Sathiya Narayanan
Nov 22 '18 at 3:41
It is part of JDO 3.2, so you need to be using that
– user3973283
Nov 22 '18 at 7:07
It is part of JDO 3.2, so you need to be using that
– user3973283
Nov 22 '18 at 7:07
Thanks I will try it and accept your answer
– Sathiya Narayanan
Nov 22 '18 at 7:49
Thanks I will try it and accept your answer
– Sathiya Narayanan
Nov 22 '18 at 7:49
You will need to use Apache Isis 2.0.0-M1 or later, because that uses DN 5.x and JDO 3.2
– Dan Haywood
Dec 26 '18 at 10:37
You will need to use Apache Isis 2.0.0-M1 or later, because that uses DN 5.x and JDO 3.2
– Dan Haywood
Dec 26 '18 at 10:37
add a comment |
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