Examples of org.apache.tapestry.json.JSONObject

org.apache.tapestry.json.JSONObject
A JSONObject is an unordered collection of name/value pairs. Its external form is a string wrapped in curly braces with colons between the names and values, and commas between the values and names. The internal form is an object having get() and opt() methods for accessing the values by name, and put() methods for adding or replacing values by name. The values can be any of these types: Boolean, JSONArray, JSONObject, Number, String, or the JSONObject.NULL object.
The constructor can convert an external form string into an internal form Java object. The toString() method creates an external form string.
A get() method returns a value if one can be found, and throws an exception if one cannot be found. An opt() method returns a default value instead of throwing an exception, and so is useful for obtaining optional values.
The generic get() and opt() methods return an object, which you can cast or query for type. There are also typed get() and opt() methods that do type checking and type coersion for you.
The texts produced by the toString() methods are very strict. The constructors are more forgiving in the texts they will accept:
- An extra , (comma) may appear just before the closing brace.
- Strings may be quoted with ' (single quote).
- Strings do not need to be quoted at all if they do not begin with a quote or single quote, and if they do not contain leading or trailing spaces, and if they do not contain any of these characters: { } [ ] / \ : , = ; # and if they do not look like numbers and if they are not the reserved words true, false, or null.
- Keys can be followed by = or => as well as by :
- Values can be followed by ; as well as by ,
- Numbers may have the 0- (octal) or 0x- (hex) prefix.
- Line comments can begin with #
@author JSON.org @version 1

        // with translators during client side validation as well
        DateTranslator translator = (DateTranslator) getFieldTranslator(field, DateTranslator.class);
        if (translator == null)
            return;
        
        JSONObject profile = context.getProfile();
        
        context.addInitializationScript(field, "dojo.require(\"tapestry.form.datetime\");");
        
        if (!profile.has(ValidationConstants.CONSTRAINTS)) {
            profile.put(ValidationConstants.CONSTRAINTS, new JSONObject());
        }
        JSONObject cons = profile.getJSONObject(ValidationConstants.CONSTRAINTS);
        
        accumulateProperty(cons, field.getClientId(), 
                new JSONLiteral("[tapestry.form.datetime.isValidDate,{"
                        + "min:" 
                        + JSONObject.quote(translator.format(field, context.getLocale(), _minDate))

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     */
    public void accumulateProfileProperty(IFormComponent field, JSONObject profile, 
            String key, Object property)
    {
        if (!profile.has(field.getClientId())) 
            profile.put(field.getClientId(), new JSONObject());
        
        JSONObject fieldProps = profile.getJSONObject(field.getClientId());
        
        accumulateProperty(fieldProps, key, property);
    }

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        _rewinding = cycle.isRewound(form);
        _allocatedIdIndex = 0;
        
        _pageRenderSupport = TapestryUtils.getOptionalPageRenderSupport(cycle);
        _profile = new JSONObject();
    }

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        // with translators during client side validation as well
        DateTranslator translator = (DateTranslator) getFieldTranslator(field, DateTranslator.class);
        if (translator == null)
            return;
        
        JSONObject profile = context.getProfile();
        
        context.addInitializationScript(field, "dojo.require(\"tapestry.form.datetime\");");
        
        if (!profile.has(ValidationConstants.CONSTRAINTS)) {
            profile.put(ValidationConstants.CONSTRAINTS, new JSONObject());
        }
        JSONObject cons = profile.getJSONObject(ValidationConstants.CONSTRAINTS);
        
        accumulateProperty(cons, field.getClientId(), 
                new JSONLiteral("[tapestry.form.datetime.isValidDate,{"
                        + "max:" 
                        + JSONObject.quote(translator.format(field, context.getLocale(), _maxDate))

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    }


    public void renderContribution(IMarkupWriter writer, IRequestCycle cycle,
            FormComponentContributorContext context, IFormComponent field)
    {
        JSONObject profile = context.getProfile();
        
        if (!profile.has(ValidationConstants.CONSTRAINTS)) {
            profile.put(ValidationConstants.CONSTRAINTS, new JSONObject());
        }
        JSONObject cons = profile.getJSONObject(ValidationConstants.CONSTRAINTS);
        
        accumulateProperty(cons, field.getClientId(), 
                new JSONLiteral("[dojo.validate.isText,{"
                        + "minlength:" + _minLength + "}]"));

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            FormComponentContributorContext context, IFormComponent field)
    {
        super.renderContribution(writer, cycle, context, field);
        
        if (_trim) {
            JSONObject profile = context.getProfile();
            
            accumulateProperty(profile, ValidationConstants.TRIM, field.getClientId());
        }
    }

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    public void renderContribution(IMarkupWriter writer, IRequestCycle cycle,
            FormComponentContributorContext context, IFormComponent field)
    {
        context.registerForFocus(ValidationConstants.REQUIRED_FIELD);
        
        JSONObject profile = context.getProfile();
        
        accumulateProperty(profile, ValidationConstants.REQUIRED, field.getClientId());
        
        accumulateProfileProperty(field, profile, 
                ValidationConstants.REQUIRED, buildMessage(context, field));

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    {
        super.renderContribution(writer, cycle, context, field);
        
        String message = buildMessage(context, field, getMessageKey());
        
        JSONObject profile = context.getProfile();
        if (!profile.has(ValidationConstants.CONSTRAINTS)) {
            profile.put(ValidationConstants.CONSTRAINTS, new JSONObject());
        }
        
        JSONObject cons = profile.getJSONObject(ValidationConstants.CONSTRAINTS);
        
        DecimalFormat format = getDecimalFormat(context.getLocale());
        
        cons.accumulate(field.getClientId(),
                new JSONLiteral("[dojo.validate.isRealNumber,{"
                        + ((format.getMaximumFractionDigits() > 0) 
                        ? "" : "places:" + format.getMaximumFractionDigits() + ",")
                        + "decimal:" 
                        + JSONObject.quote(format.getDecimalFormatSymbols().getDecimalSeparator()) + ","

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    }
    
    public void renderContribution(IMarkupWriter writer, IRequestCycle cycle,
            FormComponentContributorContext context, IFormComponent field)
    {
        JSONObject profile = context.getProfile();
        
        if (!profile.has(ValidationConstants.CONSTRAINTS)) {
            profile.put(ValidationConstants.CONSTRAINTS, new JSONObject());
        }
        JSONObject cons = profile.getJSONObject(ValidationConstants.CONSTRAINTS);
        
        // TODO: Should find some way to provide this globally and cache.
        DecimalFormatSymbols symbols = new DecimalFormatSymbols(context.getLocale());
        
        accumulateProperty(cons, field.getClientId(),

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     */
    public void accumulateProfileProperty(IFormComponent field, JSONObject profile, 
            String key, Object property)
    {
        if (!profile.has(field.getClientId())) 
            profile.put(field.getClientId(), new JSONObject());
        
        JSONObject fieldProps = profile.getJSONObject(field.getClientId());
        
        accumulateProperty(fieldProps, key, property);
    }

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