Method defineBean

java/jakarta/el/ELManager.java:167–175

Defines or removes a bean accessible by name in EL expressions. When a non-null bean is provided, it is stored under the given name. When null is provided, the bean with the given name is removed. @param name the bean name @param bean the bean object to define, or null to remove t

(String name, Object bean)

     * @return the previous bean associated with the name, or {@code null} if there was none
     */
    public Object defineBean(String name, Object bean) {
        Map<String,Object> localBeans = getELContext().getLocalBeans();

        if (bean == null) {
            return localBeans.remove(name);
        } else {
            return localBeans.put(name, bean);
        }
    }

    /**
     * Registers an {@link EvaluationListener} with the managed EL context. The listener