Package org.ajax4jsf.component

Source Code of org.ajax4jsf.component.UIMediaOutput

/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
*/

package org.ajax4jsf.component;

import javax.el.MethodExpression;

import javax.faces.component.UIOutput;
import javax.faces.el.MethodBinding;

import org.ajax4jsf.resource.ResourceComponent2;
import org.richfaces.webapp.taglib.MethodBindingMethodExpressionAdaptor;
import org.richfaces.webapp.taglib.MethodExpressionMethodBindingAdaptor;


/**
* @author shura
*
*/
public abstract class UIMediaOutput extends UIOutput implements ResourceComponent2 {
 
    public static final String COMPONENT_TYPE = "org.ajax4jsf.MMedia";

  /**
   * Get URI attribute for resource ( src for images, href for links etc ).
   * @return
   */
  public abstract String getUriAttribute();

  /**
   * Set URI attribute for resource ( src for images, href for links etc ).
   * @param newvalue
   */
  public abstract void setUriAttribute(String newvalue);
 
  /**
   * Get Element name for rendering ( imj , a , object, applet ).
   * @return
   */
  public abstract String getElement();

  /**
   * Set Element name for rendering ( imj , a , object, applet ).
   * @param newvalue
   */
  public abstract void setElement(String newvalue);
 
  /**
   * Get EL binding to method in user bean to send resource. Method will
   * called with two parameters - restored data object and servlet output
   * stream.
   *
   * @return MethodBinding to createContent
   */
  public MethodBinding getCreateContent() {
      MethodBinding result = null;
      MethodExpression me = getCreateContentExpression();

      if (me != null) {
    // if the MethodExpression is an instance of our private
    // wrapper class.
    if (me.getClass().equals(MethodExpressionMethodBindingAdaptor.class)) {
        result = ((MethodExpressionMethodBindingAdaptor) me).getBinding();
    } else {
        // otherwise, this is a real MethodExpression.  Wrap it
        // in a MethodBinding.
        result = new MethodBindingMethodExpressionAdaptor(me);
    }
      }

      return result;
  }
 
  /**
   * Set EL binding to method in user bean to send resource. Method will
   * called with two parameters - restored data object and servlet output
   * stream.
   *
   * @param newvalue - new value of createContent method binding
   */
  public void setCreateContent(MethodBinding newvalue) {
      MethodExpressionMethodBindingAdaptor adapter;
      if (newvalue != null) {
    adapter = new MethodExpressionMethodBindingAdaptor(newvalue);
    setCreateContentExpression(adapter);
      } else {
    setCreateContentExpression(null);
      }
  }

}
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