{"id":8311,"date":"2012-09-24T23:40:41","date_gmt":"2012-09-24T18:10:41","guid":{"rendered":"http:\/\/www.tothenew.com\/blog\/?p=8311"},"modified":"2012-09-25T02:18:32","modified_gmt":"2012-09-24T20:48:32","slug":"gdsl-awesomeness-defining-dynamic-method-in-a-class","status":"publish","type":"post","link":"https:\/\/www.tothenew.com\/blog\/gdsl-awesomeness-defining-dynamic-method-in-a-class\/","title":{"rendered":"GDSL Awesomeness – Defining dynamic method in a class"},"content":{"rendered":"

We can define dynamic methods in a class as follows:<\/p>\n

 <\/p>\n

Suppose we have injected a method name .clone([boolean] clearTime) in Date which clones the date object and returns the cloned one. This method takes an boolean argument argument too.
\nWe can do it as follows:
\n(See inline comments for description)<\/em>
\n[java]<\/p>\n

\/\/First we need to define a context
\ndef dateContext = context(ctype: "java.util.Date") \/\/ctype: takes the target class full name.<\/p>\n

\/\/Now we need to contribute the method in the class
\ncontribute(dateContext) {<\/p>\n

\/\/name: Name of the method
\n \/\/type: The return type of the method
\n \/\/params: Map of Arguments passed.
\n method name: ‘clone’, type: ‘java.util.Date’, params: [clearTime: Boolean]<\/p>\n

}<\/p>\n

[\/java]<\/p>\n

 <\/p>\n

Read Further in the “GDSL AWESOMENESS” Series<\/h1>\n
    \n
  1. GDSL Awesomeness – Introduction to GDSL in IntelliJ Idea<\/a><\/li>\n
  2. GDSL Awesomeness – Understanding Context And Contributors in Detail<\/a><\/li>\n
  3. GDSL Awesomeness – Defining dynamic property in a class<\/a><\/li>\n
  4. GDSL Awesomeness – Defining dynamic method in a class<\/a><\/li>\n
  5. GDSL Awesomeness – Adding Hinting for missingMethod implementation<\/a><\/li>\n
  6. GDSL Awesomeness – Setting a global context<\/a><\/li>\n
  7. GDSL Awesomeness – Delegating Closure Calls<\/a><\/li>\n
  8. GDSL Awesomeness – Defining methods in a closure passed to method of particular name<\/a><\/li>\n
  9. GDSL Awesomeness – Defining Properties in a closure passed to method of particular name<\/a><\/li>\n
  10. GDSL Awesomeness – Contributing to classes which match a path\/name pattern<\/a><\/li>\n
  11. GDSL Awesomeness – contributing methods with current class return types or parameters<\/a><\/li>\n
  12. GDSL Awesomeness – AutoComplete Script for grails-Mail-Plugin “sendMail” closure<\/a><\/li>\n
  13. GDSL Awesomeness – Getting Code of a method or Field in GDSL Script<\/a><\/li>\n
  14. GDSL Awesomeness – Advanced Example showing domain properties implementation<\/a><\/li>\n<\/ol>\n

     <\/p>\n

    Hope it helps<\/p>\n

    Kushal Likhi<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

    We can define dynamic methods in a class as follows:   Suppose we have injected a method name .clone([boolean] clearTime) in Date which clones the date object and returns the cloned one. This method takes an boolean argument argument too. We can do it as follows: (See inline comments for description) [java] \/\/First we need […]<\/p>\n","protected":false},"author":28,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":40},"categories":[7],"tags":[1057,9,692,691,1059,1060,1058],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/8311"}],"collection":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/comments?post=8311"}],"version-history":[{"count":0,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/8311\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/media?parent=8311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/categories?post=8311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/tags?post=8311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}