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authorReinier Zwitserloot <r.zwitserloot@projectlombok.org>2019-08-26 22:46:34 +0200
committerReinier Zwitserloot <r.zwitserloot@projectlombok.org>2019-08-27 00:15:47 +0200
commitda5d9a12e72dc19888b9c1f69b34e73b2b25590c (patch)
treee2939b4efb28483c2ffef599e867b220e0ca1b7f
parent461b5541da3fc8c43439f032e2f1d37574a1a658 (diff)
downloadlombok-da5d9a12e72dc19888b9c1f69b34e73b2b25590c.tar.gz
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[With] updated documentation for Wither/With
-rw-r--r--doc/changelog.markdown1
-rw-r--r--website/extra/htaccess1
-rw-r--r--website/templates/features/With.html53
-rw-r--r--website/templates/features/experimental/Wither.html66
-rw-r--r--website/usageExamples/WithExample_post.jpage21
-rw-r--r--website/usageExamples/WithExample_pre.jpage14
-rw-r--r--website/usageExamples/experimental/WitherExample_post.jpage21
-rw-r--r--website/usageExamples/experimental/WitherExample_pre.jpage14
8 files changed, 90 insertions, 101 deletions
diff --git a/doc/changelog.markdown b/doc/changelog.markdown
index c684a764..b36c4119 100644
--- a/doc/changelog.markdown
+++ b/doc/changelog.markdown
@@ -2,6 +2,7 @@ Lombok Changelog
----------------
### v1.18.9 "Edgy Guinea Pig"
+* PROMOTION: `@Wither` has been promoted to the main package, renamed to `@With`. Otherwise, no changes have been made to the annotation. The old experimenetal annotation will remain for a few versions as a deprecated annotation. If you had `lombok.config` configuration for this annotation, the configuration keys for this feature have been renamed.
* FEATURE: You can now configure a custom logger framework using the new `@CustomLog` annotation in combination with the `lombok.log.custom.declaration` configuration key. See the [log documentation](https://projectlombok.org/features/Log) for more information. [Pullrequest #2086](https://github.com/rzwitserloot/lombok/pull/2086) with thanks to Adam Juraszek.
* ENHANCEMENT: Thanks to Mark Haynes, the `staticConstructor` will now also be generated if a (private) constructor already exists. [Issue #2100](https://github.com/rzwitserloot/lombok/issues/2100)
* ENHANCEMENT: `val` is now capable of decoding the type of convoluted expressions (particularly if the right hand side involves lambdas and conditional (ternary) expressions). [Pull Request #2109](https://github.com/rzwitserloot/lombok/pull/2109) and [Pull Request #2138](https://github.com/rzwitserloot/lombok/pull/2138) with thanks to Alexander Bulgakov.
diff --git a/website/extra/htaccess b/website/extra/htaccess
index 48df7772..3539950f 100644
--- a/website/extra/htaccess
+++ b/website/extra/htaccess
@@ -59,6 +59,7 @@ RewriteRule ^features/${pg?no_esc}(\.html)?/?$ /features/${pg?no_esc} [NC,R=301]
RewriteRule ^features/experimental/Builder(\.html)?/?$ /features/Builder [NC,R=301]
RewriteRule ^features/experimental/Value(\.html)?/?$ /features/Value [NC,R=301]
RewriteRule ^features/experimental/var(\.html)?/?$ /features/var [NC,R=301]
+RewriteRule ^features/experimental/Wither(\.html)?/?$ /features/With [NC,R=301]
RewriteRule ^features/experimental/all$ /features/experimental/index.html [L,END]
RewriteRule ^features/experimental(/all)?/?$ /features/experimental/all [NC,R=301]
diff --git a/website/templates/features/With.html b/website/templates/features/With.html
new file mode 100644
index 00000000..35c52dab
--- /dev/null
+++ b/website/templates/features/With.html
@@ -0,0 +1,53 @@
+<#import "_features.html" as f>
+
+<@f.scaffold title="@With" logline="Immutable 'setters' - methods that create a clone but with one changed field.">
+ <@f.history>
+ <p>
+ <code>@Wither</code> was introduced as experimental feature in lombok v0.11.4.
+ </p><p>
+ <code>@Wither</code> was renamed to <code>@With</code>, and moved out of experimental and into the core package, in lombok v1.18.10.
+ </@f.history>
+
+ <@f.overview>
+ <p>
+ The next best alternative to a setter for an immutable property is to construct a clone of the object, but with a new value for this one field. A method to generate this clone is precisely what <code>@With</code> generates: a <code>withFieldName(newValue)</code> method which produces a clone except for the new value for the associated field.
+ </p><p>
+ For example, if you create <code>public class Point { private final int x, y; }</code>, setters make no sense because the fields are final. <code>@With</code> can generate a <code>withX(int newXValue)</code> method for you which will return a new point with the supplied value for <code>x</code> and the same value for <code>y</code>.
+ </p><p>
+ Like <a href="/features/GetterSetter"><code>@Setter</code></a>, you can specify an access level in case you want the generated with method to be something other than <code>public</code>:<br /> <code>@With(level = AccessLevel.PROTECTED)</code>. Also like <a href="/features/GetterSetter"><code>@Setter</code></a>, you can also put a <code>@With</code> annotation on a type, which means a <code>with</code> method is generated for each field (even non-final fields).
+ </p><p>
+ To put annotations on the generated method, you can use <code>onMethod=@__({@AnnotationsHere})</code>. Be careful though! This is an experimental feature. For more details see the documentation on the <a href="/features/experimental/onX">onX</a> feature.
+ </p><p>
+ javadoc on the field will be copied to generated with methods. Normally, all text is copied, and <code>@param</code> is <em>moved</em> to the with method, whilst <code>@return</code> lines are stripped from the with method's javadoc. Moved means: Deleted from the field's javadoc. It is also possible to define unique text for the with method's javadoc. To do that, you create a 'section' named <code>WITH</code>. A section is a line in your javadoc containing 2 or more dashes, then the text 'WITH', followed by 2 or more dashes, and nothing else on the line. If you use sections, <code>@return</code> and <code>@param</code> stripping / copying for that section is no longer done (move the <code>@param</code> line into the section).
+ </p><p>
+ If you have a hierarchical immutable data structure, the <a href="/features/experimental/WithBy"><code>@WithBy</code></a> feature might be more suitable than <code>@With</code>
+ </@f.overview>
+
+ <@f.snippets name="With" />
+
+ <@f.confKeys>
+ <dt>
+ <code>lombok.with.flagUsage</code> = [<code>warning</code> | <code>error</code>] (default: not set)
+ </dt><dd>
+ Lombok will flag any usage of <code>@With</code> as a warning or error if configured.
+ </dd>
+ </@f.confKeys>
+
+ <@f.smallPrint>
+ <p>
+ With methods cannot be generated for static fields because that makes no sense.
+ </p><p>
+ With methods can be generated for abstract classes, but this generates an abstract method with the appropriate signature.
+ </p><p>
+ When applying <code>@With</code> to a type, static fields and fields whose name start with a $ are skipped.
+ </p><p>
+ For generating the method names, the first character of the field, if it is a lowercase character, is title-cased, otherwise, it is left unmodified. Then, <code>with</code> is prefixed.
+ </p><p>
+ No method is generated if any method already exists with the same name (case insensitive) and same parameter count. For example, <code>withX(int x)</code> will not be generated if there's already a method <code>withX(String... x)</code> even though it is technically possible to make the method. This caveat exists to prevent confusion. If the generation of a method is skipped for this reason, a warning is emitted instead. Varargs count as 0 to N parameters.
+ </p><p>
+ For <code>boolean</code> fields that start with <code>is</code> immediately followed by a title-case letter, nothing is prefixed to generate the wither name.
+ </p><p>
+ Various well known annotations about nullity cause null checks to be inserted and will be copied to the parameter. See <a href="/features/GetterSetter">Getter/Setter</a> documentation's small print for more information.
+ </p>
+ </@f.smallPrint>
+</@f.scaffold>
diff --git a/website/templates/features/experimental/Wither.html b/website/templates/features/experimental/Wither.html
deleted file mode 100644
index 00dc10b1..00000000
--- a/website/templates/features/experimental/Wither.html
+++ /dev/null
@@ -1,66 +0,0 @@
-<#import "../_features.html" as f>
-
-<@f.scaffold title="@Wither" logline="Immutable 'setters' - methods that create a clone but with one changed field.">
- <@f.history>
- <p>
- @Wither was introduced as experimental feature in lombok v0.11.4.
- </p>
- </@f.history>
-
- <@f.experimental>
- <ul>
- <li>
- Still not sure that <code>@Wither</code> is an appropriate name for this feature.
- </li><li>
- Should there be an option to supply a way of cloning the input somehow?
- </li><li>
- Should the way that the clone is created by configurable?
- </li><li>
- Should we replace @Wither entirely with a builder class?
- </li>
- </ul>
- Current status: <em>neutral</em> - More feedback requires on the items in the above list before promotion to the main package is warranted.
- </@f.experimental>
-
- <@f.overview>
- <p>
- The next best alternative to a setter for an immutable property is to construct a clone of the object, but with a new value for this one field. A method to generate this clone is precisely what <code>@Wither</code> generates: a <code>withFieldName(newValue)</code> method which produces a clone except for the new value for the associated field.
- </p><p>
- For example, if you create <code>public class Point { private final int x, y; }</code>, setters make no sense because the fields are final. <code>@Wither</code> can generate a <code>withX(int newXValue)</code> method for you which will return a new point with the supplied value for <code>x</code> and the same value for <code>y</code>.
- </p><p>
- Like <a href="/features/GetterSetter"><code>@Setter</code></a>, you can specify an access level in case you want the generated wither to be something other than <code>public</code>:<br /> <code>@Wither(level = AccessLevel.PROTECTED)</code>. Also like <a href="/features/GetterSetter"><code>@Setter</code></a>, you can also put a <code>@Wither</code> annotation on a type, which means a 'wither' is generated for each field (even non-final fields).
- </p><p>
- To put annotations on the generated method, you can use <code>onMethod=@__({@AnnotationsHere})</code>; to put annotations on the only parameter of a generated wither method, you can use <code>onParam=@__({@AnnotationsHere})</code>. Be careful though! This is an experimental feature. For more details see the documentation on the <a href="/features/experimental/onX">onX</a> feature.
- </p><p>
- <em>NEW in lombok v1.12.0:</em> javadoc on the field will now be copied to generated withers. Normally, all text is copied, and <code>@param</code> is <em>moved</em> to the wither, whilst <code>@return</code> lines are stripped from the wither's javadoc. Moved means: Deleted from the field's javadoc. It is also possible to define unique text for the wither's javadoc. To do that, you create a 'section' named <code>WITHER</code>. A section is a line in your javadoc containing 2 or more dashes, then the text 'WITHER', followed by 2 or more dashes, and nothing else on the line. If you use sections, <code>@return</code> and <code>@param</code> stripping / copying for that section is no longer done (move the <code>@param</code> line into the section).
- </p>
- </@f.overview>
-
- <@f.snippets name="experimental/Wither" />
-
- <@f.confKeys>
- <dt>
- <code>lombok.wither.flagUsage</code> = [<code>warning</code> | <code>error</code>] (default: not set)
- </dt><dd>
- Lombok will flag any usage of <code>@Wither</code> as a warning or error if configured.
- </dd>
- </@f.confKeys>
-
- <@f.smallPrint>
- <p>
- Withers cannot be generated for static fields because that makes no sense.
- </p><p>
- Withers can be generated for abstract classes, but this generates an abstract method with the appropriate signature.
- </p><p>
- When applying <code>@Wither</code> to a type, static fields and fields whose name start with a $ are skipped.
- </p><p>
- For generating the method names, the first character of the field, if it is a lowercase character, is title-cased, otherwise, it is left unmodified. Then, <code>with</code> is prefixed.
- </p><p>
- No method is generated if any method already exists with the same name (case insensitive) and same parameter count. For example, <code>withX(int x)</code> will not be generated if there's already a method <code>withX(String... x)</code> even though it is technically possible to make the method. This caveat exists to prevent confusion. If the generation of a method is skipped for this reason, a warning is emitted instead. Varargs count as 0 to N parameters.
- </p><p>
- For <code>boolean</code> fields that start with <code>is</code> immediately followed by a title-case letter, nothing is prefixed to generate the wither name.
- </p><p>
- Various well known annotations about nullity cause null checks to be inserted and will be copied to the parameter. See <a href="/features/GetterSetter">Getter/Setter</a> documentation's small print for more information.
- </p>
- </@f.smallPrint>
-</@f.scaffold>
diff --git a/website/usageExamples/WithExample_post.jpage b/website/usageExamples/WithExample_post.jpage
new file mode 100644
index 00000000..a881ed8d
--- /dev/null
+++ b/website/usageExamples/WithExample_post.jpage
@@ -0,0 +1,21 @@
+import lombok.NonNull;
+
+public class WithExample {
+ private final int age;
+ private @NonNull final String name;
+
+ public WithExample(String name, int age) {
+ if (name == null) throw new NullPointerException();
+ this.name = name;
+ this.age = age;
+ }
+
+ public WithExample withAge(int age) {
+ return this.age == age ? this : new WithExample(name, age);
+ }
+
+ protected WithExample withName(@NonNull String name) {
+ if (name == null) throw new java.lang.NullPointerException("name");
+ return this.name == name ? this : new WithExample(name, age);
+ }
+}
diff --git a/website/usageExamples/WithExample_pre.jpage b/website/usageExamples/WithExample_pre.jpage
new file mode 100644
index 00000000..3c76204e
--- /dev/null
+++ b/website/usageExamples/WithExample_pre.jpage
@@ -0,0 +1,14 @@
+import lombok.AccessLevel;
+import lombok.NonNull;
+import lombok.With;
+
+public class WithExample {
+ @With private final int age;
+ @With(AccessLevel.PROTECTED) @NonNull private final String name;
+
+ public WithExample(String name, int age) {
+ if (name == null) throw new NullPointerException();
+ this.name = name;
+ this.age = age;
+ }
+}
diff --git a/website/usageExamples/experimental/WitherExample_post.jpage b/website/usageExamples/experimental/WitherExample_post.jpage
deleted file mode 100644
index 3447192a..00000000
--- a/website/usageExamples/experimental/WitherExample_post.jpage
+++ /dev/null
@@ -1,21 +0,0 @@
-import lombok.NonNull;
-
-public class WitherExample {
- private final int age;
- private @NonNull final String name;
-
- public WitherExample(String name, int age) {
- if (name == null) throw new NullPointerException();
- this.name = name;
- this.age = age;
- }
-
- public WitherExample withAge(int age) {
- return this.age == age ? this : new WitherExample(name, age);
- }
-
- protected WitherExample withName(@NonNull String name) {
- if (name == null) throw new java.lang.NullPointerException("name");
- return this.name == name ? this : new WitherExample(name, age);
- }
-} \ No newline at end of file
diff --git a/website/usageExamples/experimental/WitherExample_pre.jpage b/website/usageExamples/experimental/WitherExample_pre.jpage
deleted file mode 100644
index 5db799fc..00000000
--- a/website/usageExamples/experimental/WitherExample_pre.jpage
+++ /dev/null
@@ -1,14 +0,0 @@
-import lombok.AccessLevel;
-import lombok.NonNull;
-import lombok.experimental.Wither;
-
-public class WitherExample {
- @Wither private final int age;
- @Wither(AccessLevel.PROTECTED) @NonNull private final String name;
-
- public WitherExample(String name, int age) {
- if (name == null) throw new NullPointerException();
- this.name = name;
- this.age = age;
- }
-}