Example usage for javax.el ValueExpression getExpressionString

Introduction

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

Prototype

public abstract String getExpressionString();

Source Link

Usage

From source file:org.rhq.core.gui.configuration.AbstractPropertyBagUIComponentTreeFactory.java

private void addPropertySimpleValue(UIComponent parent, @Nullable UIInput input,
        ValueExpression propertyValueExpression) {
    if (!this.isGroup) {
        parent.getChildren().add(input);
        return;//from  w w w  .  j a v  a  2s .  c  om
    }

    HtmlPanelGrid panelGrid = FacesComponentUtility.addPanelGrid(parent, null, 2,
            CssStyleClasses.BUTTONS_TABLE);
    panelGrid.setColumnClasses("group-property-value-cell, group-property-members-icon-cell");
    if (input != null)
        panelGrid.getChildren().add(input);
    else
        FacesComponentUtility.addOutputText(panelGrid, null, "Member Values Differ",
                VALUES_DIFFER_TEXT_STYLE_CLASS);

    // Add the Members button which will display the "drill-down" modal panel.
    HtmlAjaxCommandLink ajaxCommandLink = FacesComponentUtility.createComponent(HtmlAjaxCommandLink.class);
    panelGrid.getChildren().add(ajaxCommandLink);
    ajaxCommandLink.setOncomplete("Richfaces.showModalPanel('"
            + this.memberValuesModalPanel.getClientId(FacesContext.getCurrentInstance()) + "');");
    //ajaxCommandLink.setReRender("rhq_propSet");
    String verb = this.config.isReadOnly() ? "View" : "Edit";
    String tooltip = verb + " Member Values";
    ajaxCommandLink.setTitle(tooltip);
    FacesComponentUtility.addParameter(ajaxCommandLink, null, "propertyExpressionString",
            propertyValueExpression.getExpressionString());
    FacesComponentUtility.addParameter(ajaxCommandLink, null, "refresh",
            ConfigRenderer.PROPERTY_SET_COMPONENT_ID);
    FacesComponentUtility.addGraphicImage(ajaxCommandLink, null, "/images/icn_member_configs.png", null);
}

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From source file:org.richfaces.component.RenderPhaseDataScrollerVisitor.java

private static boolean same(Object o1, Object o2) {
    if (o1 instanceof ValueExpression && o2 instanceof ValueExpression) {
        ValueExpression ve1 = (ValueExpression) o1;
        ValueExpression ve2 = (ValueExpression) o2;

        if (same(ve1.getExpressionString(), ve2.getExpressionString())
                && same(ve1.getExpectedType(), ve2.getExpectedType())) {
            return true;
        }//  ww w . j ava2s .  co m
    }

    return (o1 != null && o1.equals(o2)) || (o1 == null && o2 == null);
}

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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 {/*from  www .j av  a  2  s  .  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.taglib.ColumnsTag.java

/**
 * Creates value expression to be out into column
 * /*from  www  .  ja v  a 2s. c o m*/
 * @param context
 * @param orig
 * @return
 */
private ValueExpression createValueExpression(ELContext context, ValueExpression orig) {
    ValueExpression vexpr = getFacesContext().getApplication().getExpressionFactory()
            .createValueExpression(context, orig.getExpressionString(), orig.getExpectedType());
    return vexpr;
}

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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  www .j a  v  a2  s.c o 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 www.  j  ava 2 s .co m*/
        } else {
            throw new IllegalArgumentException(
                    Messages.getMessage(Messages.NO_DATA_ADAPTOR, component.getClass().getName()));
        }
    }
}

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