Examples of org.apache.cocoon.forms.datatype.Datatype

Package org.apache.cocoon.forms.datatype

Examples of org.apache.cocoon.forms.datatype.Datatype

org.apache.cocoon.forms.datatype.Datatype
A Datatype encapsulates the functionality for working with specific kinds of data like integers, deciamals or dates.
I provides:
- Methods for converting between String and Object representation of the data
- For validating the data (usually against a set of validation rules)
- optionally a selection list
Each datatype can be marked as an "arraytype". Currently, this only has an influence on the {@link #validate(Object,ExpressionContext)} method, which should in that case be passedan array of objects. See also {@link #isArrayType()}. @version $Id: Datatype.java 56581 2004-11-04 10:12:30Z sylvain $

        }


        //---- parse "datatype"
        Element datatypeElement = DomHelper.getChildElement(widgetElement, FormsConstants.DEFINITION_NS, "datatype");
        if (datatypeElement != null) {
            Datatype datatype = datatypeManager.createDatatype(datatypeElement, isArrayType);


            // ---- parse "initial-value"
            Object initialValue = null;
            Element initialValueElement = DomHelper.getChildElement(widgetElement, FormsConstants.DEFINITION_NS, "initial-value", false);
            if (initialValueElement != null) {
                String localeValue = DomHelper.getAttribute(initialValueElement, "locale", null);
                Locale locale = localeValue == null ? Locale.getDefault() : I18nUtils.parseLocale(localeValue);
                String value = DomHelper.getElementText(initialValueElement);
                ConversionResult result = datatype.convertFromString(value, locale);
                if (!result.isSuccessful()) {
                    throw new FormsException("Cannot parse initial value '" + value + "'.",
                                             DomHelper.getLocationObject(initialValueElement));
                }
                initialValue = result.getResult();

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        }


        //---- parse "datatype"
        Element datatypeElement = DomHelper.getChildElement(widgetElement, FormsConstants.DEFINITION_NS, "datatype");
        if (datatypeElement != null) {
            Datatype datatype = datatypeManager.createDatatype(datatypeElement, isArrayType);


            // ---- parse "initial-value"
            Object initialValue = null;
            Element initialValueElement = DomHelper.getChildElement(widgetElement, FormsConstants.DEFINITION_NS, "initial-value", false);
            if (initialValueElement != null) {
                String localeValue = DomHelper.getAttribute(initialValueElement, "locale", null);
                Locale locale = localeValue == null ? Locale.getDefault() : I18nUtils.parseLocale(localeValue);
                String value = DomHelper.getElementText(initialValueElement);
                ConversionResult result = datatype.convertFromString(value, locale);
                if (!result.isSuccessful()) {
                    throw new FormsException("Cannot parse initial value '" + value + "'.",
                                             DomHelper.getLocationObject(initialValueElement));
                }
                initialValue = result.getResult();

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        if (input.length() == 0)
            return;


        if (this.currentWidget instanceof MultiValueField && isMultiValueItem) {
            MultiValueField field = (MultiValueField) this.currentWidget;
            Datatype type = field.getDatatype();
            ConversionResult conv = type.convertFromString(input, this.locale);
            if (!conv.isSuccessful()) {
                throw new SAXException("Could not convert: " + input +
                                       " to " + type.getTypeClass());
            }
            Object[] values = (Object[]) field.getValue();
            int valLen = values == null ? 0 : values.length;
            Object[] newValues = new Object[valLen + 1];
            for (int i = 0; i < valLen; i++) {
                newValues[i] = values[i];
            }
            newValues[valLen] = conv.getResult();
            field.setValues(newValues);
        } else if (this.currentWidget instanceof DataWidget) {
            DataWidget data = (DataWidget) this.currentWidget;
            Datatype type = data.getDatatype();
            ConversionResult conv = type.convertFromString(input, this.locale);
            if (!conv.isSuccessful()) {
                throw new SAXException("Could not convert: " + input +
                                       " to " + type.getTypeClass());
            }
            data.setValue(conv.getResult());
        } else if (this.currentWidget instanceof BooleanField) {
            // FIXME: BooleanField should implement DataWidget, which
            // would make this case unnecessary

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        start(id, attr);
        // Placing the handling DataWidget before ContainerWidget
        // means that an AggregateField is handled like a DataWidget
        if (widget instanceof MultiValueField) {
            Datatype datatype = ((MultiValueField)widget).getDatatype();
            Object[] values = (Object[])widget.getValue();
            if (values != null)
                for (int i = 0; i < values.length; i++) {
                    start(ITEM, attr);
                    data(datatype.convertToString(values[i], this.locale));
                    end(ITEM);
                }
        } else if (widget instanceof DataWidget) {
            Datatype datatype = ((DataWidget)widget).getDatatype();
            if (widget.getValue() != null)
                data(datatype.convertToString(widget.getValue(), this.locale));
        } else if (widget instanceof BooleanField) {
            // FIXME: BooleanField should implement DataWidget, which
            // would make this case unnecessary
            if (widget.getValue() != null) {
                data(widget.getValue().toString());

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        }


        //---- parse "datatype"
        Element datatypeElement = DomHelper.getChildElement(widgetElement, FormsConstants.DEFINITION_NS, "datatype");
        if (datatypeElement != null) {
            Datatype datatype = datatypeManager.createDatatype(datatypeElement, isArrayType);


            // ---- parse "initial-value"
            Object initialValue = null;
            Element initialValueElement = DomHelper.getChildElement(widgetElement, FormsConstants.DEFINITION_NS, "initial-value", false);
            if (initialValueElement != null) {
                String localeValue = DomHelper.getAttribute(initialValueElement, "locale", null);
                Locale locale = localeValue == null ? Locale.getDefault() : I18nUtils.parseLocale(localeValue);
                String value = DomHelper.getElementText(initialValueElement);
                ConversionResult result = datatype.convertFromString(value, locale);
                if (!result.isSuccessful()) {
                    throw new FormsException("Cannot parse initial value '" + value + "'.",
                                             DomHelper.getLocationObject(initialValueElement));
                }
                initialValue = result.getResult();

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        if (input.length() == 0)
            return;


        if (this.currentWidget instanceof MultiValueField && isMultiValueItem) {
            MultiValueField field = (MultiValueField) this.currentWidget;
            Datatype type = field.getDatatype();
            ConversionResult conv = type.convertFromString(input, this.locale);
            if (!conv.isSuccessful()) {
                throw new SAXException("Could not convert: " + input +
                                       " to " + type.getTypeClass());
            }
            Object[] values = (Object[]) field.getValue();
            int valLen = values == null ? 0 : values.length;
            Object[] newValues = new Object[valLen + 1];
            for (int i = 0; i < valLen; i++) {
                newValues[i] = values[i];
            }
            newValues[valLen] = conv.getResult();
            field.setValues(newValues);
        } else if (this.currentWidget instanceof DataWidget) {
            DataWidget data = (DataWidget) this.currentWidget;
            Datatype type = data.getDatatype();
            ConversionResult conv = type.convertFromString(input, this.locale);
            if (!conv.isSuccessful()) {
                throw new SAXException("Could not convert: " + input +
                                       " to " + type.getTypeClass());
            }
            data.setValue(conv.getResult());
        } else if (this.currentWidget instanceof BooleanField) {
            // FIXME: BooleanField should implement DataWidget, which
            // would make this case unnecessary

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        start(id, attr);
        // Placing the handling DataWidget before ContainerWidget
        // means that an AggregateField is handled like a DataWidget
        if (widget instanceof MultiValueField) {
            Datatype datatype = ((MultiValueField)widget).getDatatype();
            Object[] values = (Object[])widget.getValue();
            if (values != null)
                for (int i = 0; i < values.length; i++) {
                    start(ITEM, attr);
                    data(datatype.convertToString(values[i], this.locale));
                    end(ITEM);
                }
        } else if (widget instanceof DataWidget) {
            Datatype datatype = ((DataWidget)widget).getDatatype();
            if (widget.getValue() != null)
                data(datatype.convertToString(widget.getValue(), this.locale));
        } else if (widget instanceof BooleanField) {
            // FIXME: BooleanField should implement DataWidget, which
            // would make this case unnecessary
            if (widget.getValue() != null) {
                data(widget.getValue().toString());

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        if (input.length() == 0)
            return;


        if (this.currentWidget instanceof MultiValueField && isMultiValueItem) {
            MultiValueField field = (MultiValueField)this.currentWidget;
            Datatype type = field.getDatatype();
            ConversionResult conv =
                type.convertFromString(input, this.locale);
            if (conv.isSuccessful()) {
                Object[] values = (Object[])field.getValue();
                int valLen = values == null ? 0 : values.length;
                Object[] newValues = new Object[valLen + 1];
                for (int i = 0; i < valLen; i++)
                    newValues[i] = values[i];
                newValues[valLen] = conv.getResult();
                field.setValues(newValues);
            } else
                throw new SAXException("Could not convert: " + input +
                                       " to " + type.getTypeClass());
        } else if (this.currentWidget instanceof DataWidget) {
            DataWidget data = (DataWidget)this.currentWidget;
            Datatype type = data.getDatatype();
            ConversionResult conv =
                type.convertFromString(input, this.locale);
            if (conv.isSuccessful()) {
                data.setValue(conv.getResult());
            } else
                throw new SAXException("Could not convert: " + input +
                                       " to " + type.getTypeClass());
        } else if (this.currentWidget instanceof BooleanField) {
            // FIXME: BooleanField should implement DataWidget, which
            // would make this case unnecessary
            if ("true".equals(input))
                this.currentWidget.setValue(Boolean.TRUE);

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        start(id, attr);
        // Placing the handling DataWidget before ContainerWidget
        // means that an AggregateField is handled like a DataWidget
        if (widget instanceof MultiValueField) {
            Datatype datatype = ((MultiValueField)widget).getDatatype();
            Object[] values = (Object[])widget.getValue();
            if (values != null)
                for (int i = 0; i < values.length; i++) {
                    start(ITEM, attr);
                    data(datatype.convertToString(values[i], this.locale));
                    end(ITEM);
                }
        } else if (widget instanceof DataWidget) {
            Datatype datatype = ((DataWidget)widget).getDatatype();
            if (widget.getValue() != null)
                data(datatype.convertToString(widget.getValue(), this.locale));
        } else if (widget instanceof BooleanField) {
            // FIXME: BooleanField should implement DataWidget, which
            // would make this case unnecessary
            if (widget.getValue() != null) {
                data(widget.getValue().toString());

View Full Code Here

        }


        //---- parse "datatype"
        Element datatypeElement = DomHelper.getChildElement(widgetElement, FormsConstants.DEFINITION_NS, "datatype");
        if (datatypeElement != null) {
            Datatype datatype = datatypeManager.createDatatype(datatypeElement, isArrayType);


            // ---- parse "initial-value"
            Object initialValue = null;
            Element initialValueElement = DomHelper.getChildElement(widgetElement, FormsConstants.DEFINITION_NS, "initial-value", false);
            if (initialValueElement != null) {
                String localeValue = DomHelper.getAttribute(initialValueElement, "locale", null);
                Locale locale = localeValue == null ? null : I18nUtils.parseLocale(localeValue);
                String value = DomHelper.getElementText(initialValueElement);
                ConversionResult result = datatype.convertFromString(value, locale);
                if (!result.isSuccessful()) {
                    throw new Exception("Cannot parse initial value '" + value + "' at " +
                            DomHelper.getLocation(initialValueElement));
                }
                initialValue = result.getResult();

View Full Code Here

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