Spring Spel Access This
The extension in place will now let you leverage the full power of the spring security spel functions.
Spring spel access this. Starting with spring integration 3 0 you can add additional propertyaccessor instances to the spel evaluation contexts used by the framework. It can save you a lot of coding because you can dynamically assign values at runtime. Additionally the postauthorize annotation provides the ability to access the method result.
The preauthorize annotation checks the given expression before entering the method whereas. You can also create your own propertyaccessor if you have specific needs. It is similar to this keyword of java except that this keyword of spring expression language spel is preceded by a.
There are around 20 modules in total and are divided into the layers of core container data access integration web aop aspect oriented programming instrumentation and test. In order to access methods of a class we are going to use this reference which allows us to access the currently executing object. Unsurprisingly the result will be any string.
In this example spel parser will simply evaluate the string any string as an expression. Spel spring expression language spring context. The core of the spring framework contains 4 modules.
Spring expression language spel tutorial spel is an exression language supporting the features of querying and manipulating an object graph at runtime. The folks at spring made the spring expression language part of what is considered spring core. As with using spel in configuration we can use it to call methods access properties or call constructors.
As an example we can access the math pi in spring el like t java lang math pi. To access a class scoped methods or constants you will need to use the t operator of the spring el for example t java lang math. Spring 3 introduced the spring expression language spel which has a syntax similar to unified el.