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package com.sun.faces.facelets.tag.jsf;
import com.sun.faces.facelets.el.LegacyValueBinding;
import javax.faces.component.UIComponent;
import javax.faces.component.UISelectBoolean;
import javax.faces.component.ValueHolder;
import javax.faces.convert.Converter;
import javax.faces.view.facelets.*;
/**
*
* @author Jacob Hookom
* @version $Id: ValueHolderRule.java 8641 2010-10-04 20:54:50Z edburns $
*/
final class ValueHolderRule extends MetaRule {
final static class LiteralConverterMetadata extends Metadata {
private final String converterId;
public LiteralConverterMetadata(String converterId) {
this.converterId = converterId;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((ValueHolder) instance).setConverter(ctx.getFacesContext()
.getApplication().createConverter(this.converterId));
}
}
final static class DynamicConverterMetadata extends Metadata {
private final TagAttribute attr;
public DynamicConverterMetadata(TagAttribute attr) {
this.attr = attr;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((UIComponent) instance).setValueBinding("converter",
new LegacyValueBinding(attr.getValueExpression(ctx,
Converter.class)));
}
}
final static class DynamicConverterMetadata2 extends Metadata {
private final TagAttribute attr;
public DynamicConverterMetadata2(TagAttribute attr) {
this.attr = attr;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((UIComponent) instance).setValueExpression("converter", attr
.getValueExpression(ctx, Converter.class));
}
}
final static class DynamicValueExpressionMetadata extends Metadata {
private final TagAttribute attr;
public DynamicValueExpressionMetadata(TagAttribute attr) {
this.attr = attr;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
UIComponent c = (UIComponent) instance;
c.setValueExpression("value", attr.getValueExpression(ctx, ((c instanceof UISelectBoolean)
? Boolean.class
: Object.class)));
}
}
final static class DynamicValueBindingMetadata extends Metadata {
private final TagAttribute attr;
public DynamicValueBindingMetadata(TagAttribute attr) {
this.attr = attr;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((UIComponent) instance).setValueBinding("value",
new LegacyValueBinding(attr.getValueExpression(ctx,
Object.class)));
}
}
public final static ValueHolderRule Instance = new ValueHolderRule();
public Metadata applyRule(String name, TagAttribute attribute,
MetadataTarget meta) {
if (meta.isTargetInstanceOf(ValueHolder.class)) {
if ("converter".equals(name)) {
if (attribute.isLiteral()) {
return new LiteralConverterMetadata(attribute.getValue());
} else {
return new DynamicConverterMetadata2(attribute);
}
}
if ("value".equals(name)) {
//if (attribute.isLiteral()) {
// return new LiteralValueMetadata(attribute.getValue());
//} else {
return new DynamicValueExpressionMetadata(attribute);
//}
}
}
return null;
}
}