{"id":1541,"date":"2016-09-02T16:39:50","date_gmt":"2016-09-02T16:39:50","guid":{"rendered":"http:\/\/codethataint.com\/blog\/?p=1541"},"modified":"2016-12-29T05:21:34","modified_gmt":"2016-12-29T05:21:34","slug":"application-listener","status":"publish","type":"post","link":"https:\/\/codethataint.com\/blog\/application-listener\/","title":{"rendered":"Application Listener"},"content":{"rendered":"<p>Event Handling requires 3 Things<\/p>\n<ol>\n<li>Event Publisher<\/li>\n<li>Event Listener<\/li>\n<li>Event<\/li>\n<\/ol>\n<p><strong>CustomEvent.java(Event)<\/strong><\/p>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\nimport org.springframework.context.ApplicationEvent;\r\n\r\npublic class CustomEvent extends ApplicationEvent\r\n{\r\n\tpublic CustomEvent(Object source) \r\n        {\r\n\t\tsuper(source);\r\n\t}\t\r\n\r\n\tpublic String toString()\r\n\t{\r\n\t\treturn &quot;Custom Message from Custom Event&quot;;\r\n\t}\r\n}\r\n<\/pre>\n<p><strong>CustomEventListener.java(Event Listener)<\/strong><\/p>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\nimport org.springframework.context.ApplicationEvent;\r\nimport org.springframework.context.ApplicationListener;\r\nimport org.springframework.stereotype.Component;\r\n\r\n@Component\r\npublic class CustomEventListener implements ApplicationListener\r\n{\r\n\t@Override\r\n\tpublic void onApplicationEvent(ApplicationEvent event) {\t\t\r\n\t\tSystem.out.println(event.toString());\r\n\t}\r\n}\r\n<\/pre>\n<p><strong>Circle.java(Event Publisher)<\/strong><\/p>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\nimport org.springframework.context.ApplicationEventPublisher;\r\nimport org.springframework.context.ApplicationEventPublisherAware;\r\n\r\n@Component\r\npublic class Circle implements Shape, ApplicationEventPublisherAware\r\n{\t\t\t\r\n\tprivate ApplicationEventPublisher publisher;\r\n\t\r\n\t@Override\r\n\tpublic void drawShape() {\t\r\n\t\tCustomEvent objCustEvent = new CustomEvent(this); \r\n\t\tpublisher.publishEvent(objCustEvent);\r\n\t}\r\n\t\r\n\t@Override\r\n\tpublic void setApplicationEventPublisher(ApplicationEventPublisher publisher) {\r\n\t\tthis.publisher = publisher;\r\n\t}\r\n\r\n\tpublic ApplicationEventPublisher getPublisher() {\r\n\t\treturn publisher;\r\n\t}\r\n\r\n\tpublic void setPublisher(ApplicationEventPublisher publisher) {\r\n\t\tthis.publisher = publisher;\r\n\t}\t\r\n}\t\r\n\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Event Handling requires 3 Things Event Publisher Event Listener Event CustomEvent.java(Event) import org.springframework.context.ApplicationEvent; public class CustomEvent extends ApplicationEvent { public CustomEvent(Object source) { super(source); } public String toString() { return &quot;Custom Message from Custom Event&quot;; } } CustomEventListener.java(Event Listener) import org.springframework.context.ApplicationEvent; import org.springframework.context.ApplicationListener; import org.springframework.stereotype.Component; @Component public class CustomEventListener implements ApplicationListener { @Override public void&hellip; <a href=\"https:\/\/codethataint.com\/blog\/application-listener\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[188],"tags":[],"class_list":["post-1541","post","type-post","status-publish","format-standard","hentry","category-spring"],"_links":{"self":[{"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/posts\/1541","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/comments?post=1541"}],"version-history":[{"count":2,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/posts\/1541\/revisions"}],"predecessor-version":[{"id":1990,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/posts\/1541\/revisions\/1990"}],"wp:attachment":[{"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/media?parent=1541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/categories?post=1541"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/tags?post=1541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}