Mixing
Is 'id' a reserved keyword in Salesforce?
Had a silly question in my head which I hope that someone can answer.
Can we declare id as a variable in Apex?
For example:
Id id;
I tried to declare the same and Salesforce allowed me to save my class.
However when I tried to declare other Primitive types such as String or Date, I got a compile error while saving the class.
String string; //compile error
Date date; //compile error
These variables are not mentioned in the Salesforce documentation for Reserved keywords(link: https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_reserved_words.htm)
Would anyone happen to know if there are any more such variables?
I have a jSON string that I need to deserialize, and that has 'id' as one of its attributes. I would like to understand if there would be any issues if I were to go ahead and create a variable with a name of 'id'
apex api integration
asked Jan 9 at 18:27
NevdsNevds
282
add a comment |
Had a silly question in my head which I hope that someone can answer.
Can we declare id as a variable in Apex?
For example:
Id id;
I tried to declare the same and Salesforce allowed me to save my class.
However when I tried to declare other Primitive types such as String or Date, I got a compile error while saving the class.
String string; //compile error
Date date; //compile error
These variables are not mentioned in the Salesforce documentation for Reserved keywords(link: https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_reserved_words.htm)
Would anyone happen to know if there are any more such variables?
I have a jSON string that I need to deserialize, and that has 'id' as one of its attributes. I would like to understand if there would be any issues if I were to go ahead and create a variable with a name of 'id'
apex api integration
asked Jan 9 at 18:27
NevdsNevds
282
I dont know why string, double, integer are not mentioned in reserved keywords... but as I know there is no issue in declaring a variable as 'id'...
– Ayub
Jan 9 at 18:46
Likwise you can create a class with name Id ... public class Id{} ....but you can not do with String .... public class String{} .....
– Ayub
Jan 9 at 18:48
add a comment |
Had a silly question in my head which I hope that someone can answer.
Can we declare id as a variable in Apex?
For example:
Id id;
I tried to declare the same and Salesforce allowed me to save my class.
However when I tried to declare other Primitive types such as String or Date, I got a compile error while saving the class.
String string; //compile error
Date date; //compile error
These variables are not mentioned in the Salesforce documentation for Reserved keywords(link: https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_reserved_words.htm)
Would anyone happen to know if there are any more such variables?
I have a jSON string that I need to deserialize, and that has 'id' as one of its attributes. I would like to understand if there would be any issues if I were to go ahead and create a variable with a name of 'id'
apex api integration
asked Jan 9 at 18:27
NevdsNevds
282
Had a silly question in my head which I hope that someone can answer.
Can we declare id as a variable in Apex?
For example:
Id id;
I tried to declare the same and Salesforce allowed me to save my class.
However when I tried to declare other Primitive types such as String or Date, I got a compile error while saving the class.
String string; //compile error
Date date; //compile error
These variables are not mentioned in the Salesforce documentation for Reserved keywords(link: https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_reserved_words.htm)
Would anyone happen to know if there are any more such variables?
I have a jSON string that I need to deserialize, and that has 'id' as one of its attributes. I would like to understand if there would be any issues if I were to go ahead and create a variable with a name of 'id'
apex api integration
apex api integration
asked Jan 9 at 18:27
NevdsNevds
282
asked Jan 9 at 18:27
NevdsNevds
282
asked Jan 9 at 18:27
NevdsNevds
282
asked Jan 9 at 18:27
NevdsNevds
282
asked Jan 9 at 18:27
NevdsNevds
282
282
I dont know why string, double, integer are not mentioned in reserved keywords... but as I know there is no issue in declaring a variable as 'id'...
– Ayub
Jan 9 at 18:46
Likwise you can create a class with name Id ... public class Id{} ....but you can not do with String .... public class String{} .....
– Ayub
Jan 9 at 18:48
add a comment |
I dont know why string, double, integer are not mentioned in reserved keywords... but as I know there is no issue in declaring a variable as 'id'...
– Ayub
Jan 9 at 18:46
Likwise you can create a class with name Id ... public class Id{} ....but you can not do with String .... public class String{} .....
– Ayub
Jan 9 at 18:48
I dont know why string, double, integer are not mentioned in reserved keywords... but as I know there is no issue in declaring a variable as 'id'...
– Ayub
Jan 9 at 18:46
I dont know why string, double, integer are not mentioned in reserved keywords... but as I know there is no issue in declaring a variable as 'id'...
– Ayub
Jan 9 at 18:46
Likwise you can create a class with name Id ... public class Id{} ....but you can not do with String .... public class String{} .....
– Ayub
Jan 9 at 18:48
Likwise you can create a class with name Id ... public class Id{} ....but you can not do with String .... public class String{} .....
– Ayub
Jan 9 at 18:48
add a comment |
2 Answers
2
active
oldest
votes
Id isn't a reserved keyword, and there's no problem using it in wrapper classes, but you should avoid using Id, Account (etc), Schema, etc in classes that have methods, because it will shadow the system class. For example, the following won't compile:
Id Id;
Id v = Id.valueOf('000000000000000');
The same is true for class names, especially top level classes, as it can cause unrelated classes to break unexpectedly. The most common scenario I run across is when a developer names a class Test, which tends to cause all unit tests to fall to compile.
answered Jan 9 at 19:32
sfdcfoxsfdcfox
253k11194434
+1 from me, though I would say that rather than avoiding usingidas a variable name, be aware of the shadowing problem for the rare case where you might use the staticvalueOfmethod.
– Keith C
Jan 9 at 20:02
add a comment |
There is no problem using Id as an identifier in Apex. You could run a simple script like the following to verify for yourself:
class Foo
{
String id;
}
Foo instance = (Foo)JSON.deserialize('{"id": "bar"}', Foo.class);
system.debug(instance.id);
answered Jan 9 at 18:55
Adrian Larson♦Adrian Larson
107k19114243
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
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oldest
votes
Id isn't a reserved keyword, and there's no problem using it in wrapper classes, but you should avoid using Id, Account (etc), Schema, etc in classes that have methods, because it will shadow the system class. For example, the following won't compile:
Id Id;
Id v = Id.valueOf('000000000000000');
The same is true for class names, especially top level classes, as it can cause unrelated classes to break unexpectedly. The most common scenario I run across is when a developer names a class Test, which tends to cause all unit tests to fall to compile.
answered Jan 9 at 19:32
sfdcfoxsfdcfox
253k11194434
+1 from me, though I would say that rather than avoiding usingidas a variable name, be aware of the shadowing problem for the rare case where you might use the staticvalueOfmethod.
– Keith C
Jan 9 at 20:02
add a comment |
Id isn't a reserved keyword, and there's no problem using it in wrapper classes, but you should avoid using Id, Account (etc), Schema, etc in classes that have methods, because it will shadow the system class. For example, the following won't compile:
Id Id;
Id v = Id.valueOf('000000000000000');
The same is true for class names, especially top level classes, as it can cause unrelated classes to break unexpectedly. The most common scenario I run across is when a developer names a class Test, which tends to cause all unit tests to fall to compile.
answered Jan 9 at 19:32
sfdcfoxsfdcfox
253k11194434
+1 from me, though I would say that rather than avoiding usingidas a variable name, be aware of the shadowing problem for the rare case where you might use the staticvalueOfmethod.
– Keith C
Jan 9 at 20:02
add a comment |
Id isn't a reserved keyword, and there's no problem using it in wrapper classes, but you should avoid using Id, Account (etc), Schema, etc in classes that have methods, because it will shadow the system class. For example, the following won't compile:
Id Id;
Id v = Id.valueOf('000000000000000');
The same is true for class names, especially top level classes, as it can cause unrelated classes to break unexpectedly. The most common scenario I run across is when a developer names a class Test, which tends to cause all unit tests to fall to compile.
answered Jan 9 at 19:32
sfdcfoxsfdcfox
253k11194434
Id isn't a reserved keyword, and there's no problem using it in wrapper classes, but you should avoid using Id, Account (etc), Schema, etc in classes that have methods, because it will shadow the system class. For example, the following won't compile:
Id Id;
Id v = Id.valueOf('000000000000000');
The same is true for class names, especially top level classes, as it can cause unrelated classes to break unexpectedly. The most common scenario I run across is when a developer names a class Test, which tends to cause all unit tests to fall to compile.
answered Jan 9 at 19:32
sfdcfoxsfdcfox
253k11194434
edited Jan 9 at 20:16
answered Jan 9 at 19:32
sfdcfoxsfdcfox
253k11194434
answered Jan 9 at 19:32
sfdcfoxsfdcfox
253k11194434
answered Jan 9 at 19:32
sfdcfoxsfdcfox
253k11194434
253k11194434
+1 from me, though I would say that rather than avoiding usingidas a variable name, be aware of the shadowing problem for the rare case where you might use the staticvalueOfmethod.
– Keith C
Jan 9 at 20:02
add a comment |
+1 from me, though I would say that rather than avoiding usingidas a variable name, be aware of the shadowing problem for the rare case where you might use the staticvalueOfmethod.
– Keith C
Jan 9 at 20:02
+1 from me, though I would say that rather than avoiding using
id as a variable name, be aware of the shadowing problem for the rare case where you might use the static valueOf method.– Keith C
Jan 9 at 20:02
+1 from me, though I would say that rather than avoiding using
id as a variable name, be aware of the shadowing problem for the rare case where you might use the static valueOf method.– Keith C
Jan 9 at 20:02
add a comment |
There is no problem using Id as an identifier in Apex. You could run a simple script like the following to verify for yourself:
class Foo
{
String id;
}
Foo instance = (Foo)JSON.deserialize('{"id": "bar"}', Foo.class);
system.debug(instance.id);
answered Jan 9 at 18:55
Adrian Larson♦Adrian Larson
107k19114243
add a comment |
There is no problem using Id as an identifier in Apex. You could run a simple script like the following to verify for yourself:
class Foo
{
String id;
}
Foo instance = (Foo)JSON.deserialize('{"id": "bar"}', Foo.class);
system.debug(instance.id);
answered Jan 9 at 18:55
Adrian Larson♦Adrian Larson
107k19114243
add a comment |
There is no problem using Id as an identifier in Apex. You could run a simple script like the following to verify for yourself:
class Foo
{
String id;
}
Foo instance = (Foo)JSON.deserialize('{"id": "bar"}', Foo.class);
system.debug(instance.id);
answered Jan 9 at 18:55
Adrian Larson♦Adrian Larson
107k19114243
There is no problem using Id as an identifier in Apex. You could run a simple script like the following to verify for yourself:
class Foo
{
String id;
}
Foo instance = (Foo)JSON.deserialize('{"id": "bar"}', Foo.class);
system.debug(instance.id);
answered Jan 9 at 18:55
Adrian Larson♦Adrian Larson
107k19114243
answered Jan 9 at 18:55
Adrian Larson♦Adrian Larson
107k19114243
answered Jan 9 at 18:55
Adrian Larson♦Adrian Larson
107k19114243
answered Jan 9 at 18:55
Adrian Larson♦Adrian Larson
107k19114243
107k19114243
add a comment |
add a comment |
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I dont know why string, double, integer are not mentioned in reserved keywords... but as I know there is no issue in declaring a variable as 'id'...
– Ayub
Jan 9 at 18:46
Likwise you can create a class with name Id ... public class Id{} ....but you can not do with String .... public class String{} .....
– Ayub
Jan 9 at 18:48