Example usage for javax.el ValueExpression isLiteralText

Introduction

In this page you can find the example usage for javax.el ValueExpression isLiteralText.

Prototype

public abstract boolean isLiteralText();

Source Link

Usage

From source file:org.richfaces.taglib.ColumnsTag.java

@Override
protected void setProperties(UIComponent component) {
    ELContext elContext = getContext(pageContext.getELContext());
    Field[] fields = this.getClass().getDeclaredFields();
    for (Field field : fields) {
        try {// ww w  .ja v a  2s . co  m
            Object o = field.get(this);
            if (o != null && o instanceof ValueExpression) {
                String fieldName = field.getName();
                if (fieldName != null && fieldName.startsWith("_")) {
                    String attributeName = fieldName.replace("_", "");
                    if (ColumnsAttributes.FILTER_ATTRIBUTES.indexOf(attributeName) == -1
                            && ColumnsAttributes.SORT_ATTRIBUTES.indexOf(attributeName) == -1) {
                        ValueExpression ex = (ValueExpression) o;
                        ex = createValueExpression(elContext, ex);
                        component.setValueExpression(attributeName, ex);
                    } else {
                        ValueExpression ex = (ValueExpression) o;
                        ValueExpression expr = null;
                        if (!ex.isLiteralText()) {
                            expr = ELBuilder.createValueExpression(ex.getExpressionString(),
                                    ex.getExpectedType(),
                                    getFacesContext().getApplication().getExpressionFactory(),
                                    pageContext.getELContext(), itemId, indexId, getVarReplacement(),
                                    String.valueOf(index));
                        } else {
                            expr = ex;
                        }
                        component.setValueExpression(attributeName, expr);
                    }
                }

            }

        } catch (Exception e) {
            continue;
        }
    }
    // Set filterMethod attribute
    if (_filterMethod != null) {
        MethodExpression mexpr = getFacesContext().getApplication().getExpressionFactory()
                .createMethodExpression(elContext, _filterMethod.getExpressionString(), Object.class,
                        new Class[] { Object.class });
        ((HtmlColumn) component).setFilterMethod(mexpr);
    }
    // Set SortExpression attribute especially for scrollable data table
    if (_sortExpression != null) {
        ValueExpression expr = ELBuilder.createValueExpression(_sortExpression.getExpressionString(),
                _sortExpression.getExpectedType(), getFacesContext().getApplication().getExpressionFactory(),
                pageContext.getELContext(), itemId, indexId, getVarReplacement(), String.valueOf(index));
        component.setValueExpression("sortExpression", expr);
    }

}

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From source file:org.richfaces.webapp.taglib.UIComponentELTagBase.java

protected void setConverterProperty(UIComponent component, ValueExpression converter) {
    if (converter != null) {
        if (component instanceof ValueHolder) {
            ValueHolder output = (ValueHolder) component;
            if (!converter.isLiteralText()) {
                component.setValueExpression("converter", converter);
            } else {
                Converter conv = FacesContext.getCurrentInstance().getApplication()
                        .createConverter(converter.getExpressionString());
                output.setConverter(conv);
            }//from   w w w .  ja va  2s. co  m
        } else {
            throw new IllegalArgumentException(
                    Messages.getMessage(Messages.NO_VALUE_HOLDER_ERROR, component.getClass().getName()));
        }
    }
}

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From source file:org.richfaces.webapp.taglib.UIComponentELTagBase.java

protected void setRowKeyConverterProperty(UIComponent component, ValueExpression converter) {
    if (converter != null) {
        if (component instanceof UIDataAdaptor) {
            UIDataAdaptor data = (UIDataAdaptor) component;
            if (!converter.isLiteralText()) {
                component.setValueExpression("rowKeyConverter", converter);
            } else {
                Converter conv = FacesContext.getCurrentInstance().getApplication()
                        .createConverter(converter.getExpressionString());
                data.setRowKeyConverter(conv);
            }//from  ww w .  j  a  va 2  s. c  om
        } else {
            throw new IllegalArgumentException(
                    Messages.getMessage(Messages.NO_DATA_ADAPTOR, component.getClass().getName()));
        }
    }
}

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