Add support for @Id without value

[gilberto-torrezan]

When @Id is used without value, the name of the field will be used to map the element on the template to the field on the Java class.

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This change is 

[denis-anisimov]

Reviewed 3 of 3 files at r1.
Review status: all files reviewed at latest revision, 1 unresolved discussion.

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flow-server/src/main/java/com/vaadin/flow/component/polymertemplate/TemplateDataAnalyzer.java, line 225 at r1 (raw file):

throw new IllegalStateException(String.format(

Quoted 5 lines of code…

> "Class '%s' whose template URI is '%s' contains field '%s' annotated with @id%s. " > + "Corresponding element was found in a sub template, " > + "for which injection is not supported.", > templateClass.getName(), htmlImportUri, field.getName(), > emptyValue ? "" : "(\"" + id + "\")"));

The message doesn't mention that element is referenced by id (in case it's derived from the field name).
I think the message should be extended with this information when id is the field name.

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Comments from Reviewable

[gilberto-torrezan]

Review status: 2 of 3 files reviewed at latest revision, 1 unresolved discussion.

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flow-server/src/main/java/com/vaadin/flow/component/polymertemplate/TemplateDataAnalyzer.java, line 225 at r1 (raw file):

Previously, denis-anisimov (Denis) wrote…

throw new IllegalStateException(String.format(
"Class '%s' whose template URI is '%s' contains field '%s' annotated with @id%s. "
+ "Corresponding element was found in a sub template, "
+ "for which injection is not supported.",
templateClass.getName(), htmlImportUri, field.getName(),
emptyValue ? "" : "("" + id + "")"));

The message doesn't mention that element is referenced by id (in case it's derived from the field name).
I think the message should be extended with this information when id is the field name.

Done.

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Comments from Reviewable

[denis-anisimov]

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Reviewed 1 of 1 files at r2.
Review status: all files reviewed at latest revision, all discussions resolved.

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Comments from Reviewable