How to reference a method in javadoc?
How can I use the @link
tag to link to a method?
I want to change
/**
* Returns the Baz object owned by the Bar object owned by Foo owned by this.
* A convenience method, equivalent to getFoo().getBar().getBaz()
* @return baz
*/
public Baz fooBarBaz()
to
/**
* Returns the Baz object owned by the Bar object owned by Foo owned by this.
* A convenience method, equivalent to {@link getFoo()}.{@link getBar()}.{@link getBaz()}
* @return baz
*/
public Baz fooBarBaz()
but I don't know how to format the @link
tag correctly.
You will find much information about JavaDoc at the JavaDoc Tool reference page, including the information on the
{@link package.class#member label}
tag (that you are looking for):
For example, here is a comment that refers to the getComponentAt(int, int) method:
Use the {@link #getComponentAt(int, int) getComponentAt} method.
Other useful links about JavaDoc are:
The general format, from the @link section of the javadoc documentation, is:
Examples
Method in the same class:
/** See also {@link #myMethod(String)}. */
void foo() { ... }
Method in a different class, either in the same package or imported:
/** See also {@link MyOtherClass#myMethod(String)}. */
void foo() { ... }
Method in a different package and not imported:
/** See also {@link com.mypackage.YetAnotherClass#myMethod(String)}. */
void foo() { ... }
Label linked to method, in plain text rather than code font:
/** See also this {@linkplain #myMethod(String) implementation}. */
void foo() { ... }
A chain of method calls, as in your question. We have to specify labels for the links to methods outside this class, or we get getFoo().Foo.getBar().Bar.getBaz()
. But these labels can be fragile; see "Labels" below.
/**
* A convenience method, equivalent to
* {@link #getFoo()}.{@link Foo#getBar() getBar()}.{@link Bar#getBaz() getBaz()}.
* @return baz
*/
public Baz fooBarBaz()
Labels
Automated refactoring may not affect labels. This includes renaming the method, class or package; and changing the method signature.
Therefore, provide a label only if you want different text than the default.
For example, you might link from human language to code:
/** You can also {@linkplain #getFoo() get the current foo}. */
void setFoo( Foo foo ) { ... }
Or you might link from a code sample with text different than the default, as shown above under "A chain of method calls." However, this can be fragile while APIs are evolving.
Type erasure and #member
If the method signature includes parameterized types, use the erasure of those types in the javadoc @link. For example:
int bar( Collection<Integer> receiver ) { ... }
/** See also {@link #bar(Collection)}. */
void foo() { ... }
you can use @see
to do that:
sample:
interface View {
/**
* @return true: have read contact and call log permissions, else otherwise
* @see #requestReadContactAndCallLogPermissions()
*/
boolean haveReadContactAndCallLogPermissions();
/**
* if not have permissions, request to user for allow
* @see #haveReadContactAndCallLogPermissions()
*/
void requestReadContactAndCallLogPermissions();
}
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