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1
28
29 package javax.faces.webapp;
30
31 import java.io.*;
32
33 import javax.el.*;
34
35 import javax.faces.application.*;
36 import javax.faces.component.*;
37 import javax.faces.context.*;
38
39 import javax.servlet.jsp.*;
40 import javax.servlet.jsp.tagext.*;
41
42 public abstract class UIComponentELTag extends UIComponentClassicTagBase
43 implements Tag
44 {
45 private ValueExpression _binding;
46 private ValueExpression _rendered;
47
48 public void setBinding(ValueExpression binding)
49 throws JspException
50 {
51 _binding = binding;
52 }
53
54 protected boolean hasBinding()
55 {
56 return _binding != null;
57 }
58
59 public void setRendered(ValueExpression rendered)
60 {
61 _rendered = rendered;
62 }
63
64 protected ELContext getELContext()
65 {
66 return getFacesContext().getELContext();
67 }
68
69 protected void setProperties(UIComponent component)
70 {
71 if (_rendered != null)
72 component.setValueExpression("rendered", _rendered);
73
74 String  type = getRendererType();
75 if (type != null)
76 component.setRendererType(type);
77 }
78
79 protected UIComponent createComponent(FacesContext context,
80 String newId)
81 throws JspException
82 {
83 Application app = context.getApplication();
84
85 UIComponent component = app.createComponent(getComponentType());
86
87 setProperties(component);
88
89 return component;
90 }
91 }
92
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