Example usage for javax.el ValueExpression getValue

Introduction

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

Prototype

public abstract Object getValue(ELContext context);

Source Link

Usage

From source file:org.ajax4jsf.component.AjaxRegionBrige.java

public boolean isSelfRendered() {
    if (this.selfRenderedSet) {
        return (this.selfRendered);
    }//from w w  w.j  a va2  s.c o m
    ValueExpression vb = component.getValueExpression("selfRendered");
    if (vb != null) {
        return (Boolean.TRUE.equals(vb.getValue(FacesContext.getCurrentInstance().getELContext())));
    } else {
        return (this.selfRendered);
    }
}

From source file:org.nuxeo.ecm.platform.ui.web.component.UISelectItem.java

protected String retrieveItemLabel() {
    FacesContext ctx = FacesContext.getCurrentInstance();
    Locale locale = ctx.getViewRoot().getLocale();
    String label = null;//from  w ww.  jav  a  2 s  . co m
    if (isdbl10n()) {
        Map<String, String> labels = getItemLabels();
        if (labels != null) {
            if (labels.containsKey(locale.getLanguage())) {
                label = labels.get(locale.getLanguage());
            } else {
                // fallback on en
                label = labels.get("en");
            }
        }
    }
    if (StringUtils.isBlank(label)) {
        Object labelObject = getItemLabel();
        label = labelObject != null ? labelObject.toString() : null;
    }
    if (isResolveItemLabelTwice() && ComponentTagUtils.isValueReference(label)) {
        ValueExpression ve = ctx.getApplication().getExpressionFactory()
                .createValueExpression(ctx.getELContext(), label, Object.class);
        if (ve != null) {
            Object newLabel = ve.getValue(ctx.getELContext());
            if (newLabel instanceof String) {
                label = (String) newLabel;
            }
        }
    }
    if (isLocalize()) {
        label = translate(ctx, locale, label);
    }
    return label;
}

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

public boolean isDisableDefault() {
    if (this.disableDefaultSet) {
        return (this.disableDefault);
    }/*from w  ww.ja  v  a 2 s. c o  m*/

    ValueExpression ve = getValueExpression("disableDefault");
    if (ve != null) {
        Boolean value = null;

        try {
            value = (Boolean) ve.getValue(getFacesContext().getELContext());
        } catch (ELException e) {
            throw new FacesException(e);
        }

        if (null != value) {
            return value.booleanValue();
        }
    }

    String event = getEvent();
    return ("contextmenu".equalsIgnoreCase(event) || "oncontextmenu".equalsIgnoreCase(event));
}

From source file:org.apache.myfaces.custom.aliasbean.AliasBean.java

/**
 * The existing value that the alias can be set to. This can be 
 * a literal string (like "toto") or a reference to an existing 
 * bean (like "#{myBean.member1}")./*  w  w  w  .jav  a  2  s. c om*/
 * 
 */
@JSFProperty(deferredValueType = "java.lang.Object")
public String getValue() {
    String valueExpression = alias.getValueExpression();
    if (valueExpression != null)
        return valueExpression;

    // Normally, this component will have no value, because the setValue method always
    // passes that data on to the alias instead. However it is possible for someone
    // to use f:attribute (or other mechanism?) to set the value instead. So when the
    // alias has no value, look for it there.
    ValueExpression vb = getValueExpression("value");
    return vb != null ? (String) vb.getValue(getFacesContext().getELContext()) : null;
}

From source file:velo.uiComponents.XMLTagInput.java

/**
 * <p>Return the client identifier of the component for which
 * this component represents associated message(s) (if any).</p>
 *//* w w w. j a v  a  2 s .com*/
public String getFor() {
    if (this.forVal != null) {
        return this.forVal;
    }

    ValueExpression ve = getValueExpression("for");
    if (ve != null) {
        try {
            return (String) ve.getValue(getFacesContext().getELContext());
        } catch (ELException e) {
            throw new FacesException(e);
        }
    } else {
        return null;
    }
}

From source file:org.nuxeo.ecm.platform.ui.web.binding.alias.AliasTagHandler.java

protected boolean isAnchored(FaceletContext ctx) {
    if (cache != null && cache.getBoolean(ctx)) {
        return false;
    }// w ww .j  a va 2  s .c o  m
    ExpressionFactory eFactory = ctx.getExpressionFactory();
    ValueExpression ve = eFactory.createValueExpression(ctx, "#{" + ANCHOR_ENABLED_VARIABLE + "}",
            Boolean.class);
    if (Boolean.TRUE.equals(ve.getValue(ctx))) {
        return true;
    }
    if (anchor != null) {
        return anchor.getBoolean(ctx);
    }
    return false;
}

From source file:org.apache.myfaces.custom.skin.context.RequestContextBean.java

protected String getStringValue(FacesContext context, ValueExpression vb) {
    Object value = vb.getValue(context.getELContext());
    if (value != null) {
        return value.toString();
    }// w w  w  .j  a v a  2 s. c om
    return null;
}

From source file:org.exoplatform.portal.gadget.core.GateInJsonContainerConfig.java

@Override
public Object getProperty(String container, String property) {
    if (property.startsWith("${")) {
        // An expression!
        try {// ww w. j a  v a 2s  .  co  m
            ValueExpression expression = expressions.parse(property, Object.class);
            return expression.getValue(createExpressionContext(container));
        } catch (ELException e) {
            return null;
        }
    }

    Map<String, Object> containerData = getProperties(container);
    if (containerData == null) {
        return null;
    }
    return containerData.get(property);
}

From source file:org.apache.shindig.config.JsonContainerConfig.java

@Override
public Object getProperty(String container, String property) {
    if (property.startsWith("${")) {
        // An expression!
        try {/*from  ww w.  j  a  v a  2s  .  c o  m*/
            ValueExpression expression = expressions.parse(property, Object.class);
            return expression.getValue(createExpressionContext(container));
        } catch (ELException e) {
            return null;
        }
    }

    Map<String, Object> containerData = config.get(container);
    if (containerData == null) {
        return null;
    }
    return containerData.get(property);
}

From source file:org.nuxeo.ecm.platform.ui.web.directory.DirectoryAwareComponent.java

protected Boolean getBooleanValue(String name, boolean defaultValue) {
    ValueExpression ve = getValueExpression(name);
    if (ve != null) {
        try {// ww  w  . j a  v a2s.co m
            return !Boolean.FALSE.equals(ve.getValue(getFacesContext().getELContext()));
        } catch (ELException e) {
            throw new FacesException(e);
        }
    } else {
        return defaultValue;
    }
}