Whenever I have the use case of inheritance\u00a0in my Grails application I prefer to have the single table for all the classes, to avoid joins and multiple save statement. But one thing I dont like about this is its class discriminator which have the full class name in it. I dont find it much readable when looking into the sql.<\/p>\n
<\/p>\n
Grails provide cool mapping to customise the discriminator<\/a> in Grails inheritance. To explain this I am taking the example \u00a0of \u00a0my last blog <\/a>.\u00a0So to change the value of discriminator I just need to add the discriminator mapping in every sub class and give them some unique identification value<\/p>\n [java] Now the class discriminator will store “TextBlog” rather than full class name e.g; com.intelligrape.example.TextBlog.<\/p>\n After doing this I change the discriminator column name because its not actually storing the class, so I add following mapping to my base class to change column name.<\/p>\n [java] After doing this the column name will change from “class” to “type”.<\/p>\n <\/p>\n Hope it helps<\/p>\n Uday Pratap Singh<\/a> Whenever I have the use case of inheritance\u00a0in my Grails application I prefer to have the single table for all the classes, to avoid joins and multiple save statement. But one thing I dont like about this is its class discriminator which have the full class name in it. I dont find it much readable […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":3},"categories":[7],"tags":[932,4840,930,931],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/7050"}],"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\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/comments?post=7050"}],"version-history":[{"count":0,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/7050\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/media?parent=7050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/categories?post=7050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/tags?post=7050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nstatic mapping = {
\n discriminator "TextBlog"
\n }
\n[\/java]<\/p>\n
\nstatic mapping = {
\n discriminator column: "type"
\n }
\n[\/java]<\/p>\n
\nuday@intelligrape.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"