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[[core-requestmapClass]]
=== Requestmap Domain Class

Create and use a domain class to store request mapping entries in the database instead of defining them with annotations
or in `application.groovy`. This option makes the rules configurable at runtime; you can add, remove and edit rules
without restarting your application.

.Requestmap class configuration options
[cols="30,30,40"]
|====================
| *Property* | *Default Value* | *Meaning*

|requestMap.className
|_none_ - set to your implementation
|requestmap domain class

|requestMap.urlField
|"url"
|URL pattern property name

|requestMap.configAttributeField
|"configAttribute"
|authority pattern property name

|requestMap.httpMethodField
|"httpMethod"
|HTTP method property name (optional, does not have to exist in the class if you don't require URL/method security)
|====================

Assuming you choose `com.mycompany.myapp` as your package, and `SecurityMapping` as your class name, you'll generate this class:

[source, groovy]
----
package com.mycompany.myapp

import org.springframework.http.HttpMethod

import groovy.transform.EqualsAndHashCode
import groovy.transform.ToString
import grails.compiler.GrailsCompileStatic

@GrailsCompileStatic
@EqualsAndHashCode(includes=['configAttribute', 'httpMethod', 'url'])
@ToString(includes=['configAttribute', 'httpMethod', 'url'], cache=true, includeNames=true, includePackage=false)
class SecurityMapping implements Serializable {

	private static final long serialVersionUID = 1

	String configAttribute
	HttpMethod httpMethod
	String url

	static constraints = {
		configAttribute(blank: false)
		httpMethod(nullable: true)
		url(blank: false, unique: 'httpMethod')
	}

	static mapping = {
		cache(true)
	}
}
----

To use database entries to guard URLs, see <<core-requestmapInstances>>.
