java.beans.beancontext

Interface BeanContext

Contents

    • Field Detail

      • globalHierarchyLock

        static final Object globalHierarchyLock
        This global lock is used by both BeanContext and BeanContextServices implementors to serialize changes in a BeanContext hierarchy and any service requests etc.

    • Method Detail

      • instantiateChild

        Object instantiateChild(String beanName)
                        throws IOException,
                               ClassNotFoundException
        Instantiate the javaBean named as a child of this BeanContext. The implementation of the JavaBean is derived from the value of the beanName parameter, and is defined by the java.beans.Beans.instantiate() method.
        Parameters:
        beanName - The name of the JavaBean to instantiate as a child of this BeanContext
        Throws:
        IOException
        ClassNotFoundException - if the class identified by the beanName parameter is not found
        IOException
        ClassNotFoundException

      • getResourceAsStream

        InputStream getResourceAsStream(String name,
                              BeanContextChild bcc)
                                throws IllegalArgumentException
        Analagous to java.lang.ClassLoader.getResourceAsStream(), this method allows a BeanContext implementation to interpose behavior between the child Component and underlying ClassLoader.
        Parameters:
        name - the resource name
        bcc - the specified child
        Returns:
        an InputStream for reading the resource, or null if the resource could not be found.
        Throws:
        IllegalArgumentException - if the resource is not valid
        IllegalArgumentException

      • getResource

        URL getResource(String name,
              BeanContextChild bcc)
                throws IllegalArgumentException
        Analagous to java.lang.ClassLoader.getResource(), this method allows a BeanContext implementation to interpose behavior between the child Component and underlying ClassLoader.
        Parameters:
        name - the resource name
        bcc - the specified child
        Returns:
        a URL for the named resource for the specified child
        Throws:
        IllegalArgumentException - if the resource is not valid
        IllegalArgumentException

      • addBeanContextMembershipListener

        void addBeanContextMembershipListener(BeanContextMembershipListener bcml)
        Adds the specified BeanContextMembershipListener to receive BeanContextMembershipEvents from this BeanContext whenever it adds or removes a child Component(s).
        Parameters:
        bcml - the BeanContextMembershipListener to be added

      • removeBeanContextMembershipListener

        void removeBeanContextMembershipListener(BeanContextMembershipListener bcml)
        Removes the specified BeanContextMembershipListener so that it no longer receives BeanContextMembershipEvents when the child Component(s) are added or removed.
        Parameters:
        bcml - the BeanContextMembershipListener to be removed

Document created the 11/06/2005, last modified the 04/03/2020
Source of the printed document:https://www.gaudry.be/en/java-api-rf-java/beans/beancontext/BeanContext.html

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