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.richfaces.component.UICalendar.java

/**
 * Gets what the minimal days required in the first week of the year 
 are; e.g., if the first week is defined as one that contains the first 
 day of the first month of a year, this method returns 1. If the 
 minimal days required must be a full week, this method returns 7.
 * Getter for minDaysInFirstWeek/*from  ww  w.  j  av a2s.  c o m*/
 * @return minDaysInFirstWeek value from local variable or value bindings
 */
public int getMinDaysInFirstWeek() {
    if (this._minDaysInFirstWeekSet) {
        return this._minDaysInFirstWeek;
    }
    ValueExpression ve = getValueExpression("minDaysInFirstWeek");
    if (ve != null) {
        Integer value = (Integer) ve.getValue(getFacesContext().getELContext());
        if (null == value) {
            return getDefaultMinDaysInFirstWeek();
        }
        return (value.intValue());
    } else {
        return getDefaultMinDaysInFirstWeek();
    }
}

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

/**
 * Gets what the first day of the week is; e.g., SUNDAY in the U.S., MONDAY in France.
 * Getter for firstWeekDay//from w  w w  . j a v a2 s .c  o m
 * @return firstWeekDay value from local variable or value bindings
 */
public int getFirstWeekDay() {
    int result;
    if (this._firstWeekDaySet) {
        result = this._firstWeekDay;
    } else {
        ValueExpression ve = getValueExpression("firstWeekDay");
        if (ve != null) {

            Integer value = (Integer) ve.getValue(getFacesContext().getELContext());
            result = (value.intValue());
        } else {
            result = getDefaultFirstWeekDay();
        }
    }
    if (result < 0 || result > 6) {
        getFacesContext().getExternalContext()
                .log(result + " value of firstWeekDay attribute is not a legal one for component: "
                        + MessageUtil.getLabel(getFacesContext(), this) + ". Default value was applied.");
        result = getDefaultFirstWeekDay();
    }
    return result;
}

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

/**
 * @since 5.6//from   w ww  .j  a  v a 2 s  . c  om
 */
public Boolean getResetCacheOnUpdate() {
    if (resetCacheOnUpdate != null) {
        return resetCacheOnUpdate;
    }
    ValueExpression ve = getValueExpression("resetCacheOnUpdate");
    if (ve != null) {
        try {
            return Boolean.valueOf(Boolean.TRUE.equals(ve.getValue(getFacesContext().getELContext())));
        } catch (ELException e) {
            throw new FacesException(e);
        }
    } else {
        // default value
        return Boolean.FALSE;
    }
}

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From source file:inti.ws.spring.resource.template.TemplateResource.java

protected String applyTemplate(ExpressionFactory factory, String templateName, String templateFile) {
    ValueExpression var;
    Object val;
    SimpleContext templateContext = new SimpleContext();
    ValueExpression templateContent;

    templateContent = factory.createValueExpression(templateContext, template, String.class);
    var = factory.createValueExpression(templateContext, "${content}", String.class);
    var.setValue(templateContext, templateFile.replaceAll("\"", "\\\\\""));

    for (Map.Entry<String, Object> parameter : parameters.entrySet()) {
        var = factory.createValueExpression(templateContext, "${" + parameter.getKey() + '}', String.class);
        val = parameter.getValue();

        if ("$filename".equals(val)) {
            val = templateName;
        } else if ("$modulename".equals(val)) {
            val = moduleName;
        }//from  ww  w  . ja v a 2 s  . c  om

        var.setValue(templateContext, val);
    }

    return (String) templateContent.getValue(templateContext);
}

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From source file:org.apache.myfaces.custom.datascroller.AbstractHtmlDataScroller.java

/**
 * MethodBinding pointing at method acception an ActionEvent with return type void.
 *
 * @see javax.faces.component.ActionSource#getActionListener()
 *///from   w w  w . ja  v a2  s.  co m
@JSFProperty(returnSignature = "void", methodSignature = "javax.faces.event.ActionEvent")
public MethodBinding getActionListener() {
    if (_actionListener != null) {
        return _actionListener;
    }
    ValueExpression expression = getValueExpression("actionListener");
    if (expression != null) {
        return (MethodBinding) expression.getValue(getFacesContext().getELContext());
    }
    return null;
}

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From source file:org.apache.myfaces.config.ManagedBeanBuilder.java

private void initializeMap(FacesContext facesContext, MapEntries mapEntries,
        Map<? super Object, ? super Object> map) {
    Application application = facesContext.getApplication();

    Class<?> keyClass = (mapEntries.getKeyClass() == null) ? String.class
            : ClassUtils.simpleJavaTypeToClass(mapEntries.getKeyClass());

    Class<?> valueClass = (mapEntries.getValueClass() == null) ? String.class
            : ClassUtils.simpleJavaTypeToClass(mapEntries.getValueClass());

    ValueExpression valueExpression;
    ExpressionFactory expFactory = application.getExpressionFactory();
    ELContext elContext = facesContext.getELContext();

    for (Iterator<? extends MapEntry> iterator = mapEntries.getMapEntries(); iterator.hasNext();) {
        MapEntry entry = iterator.next();
        Object key = entry.getKey();

        if (ContainerUtils.isValueReference((String) key)) {
            valueExpression = expFactory.createValueExpression(elContext, (String) key, Object.class);
            key = valueExpression.getValue(elContext);
        }//from w  w  w .j a va 2  s.com

        if (entry.isNullValue()) {
            map.put(coerceToType(facesContext, key, keyClass), null);
        } else {
            Object value = entry.getValue();
            if (ContainerUtils.isValueReference((String) value)) {
                valueExpression = expFactory.createValueExpression(elContext, (String) value, Object.class);
                value = valueExpression.getValue(elContext);
            }

            map.put(coerceToType(facesContext, key, keyClass), coerceToType(facesContext, value, valueClass));
        }
    }
}

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

/**
 * Return expression for page variables/*from   w ww .  j a  v  a 2  s . c  om*/
 * 
 * @param expr
 * @return
 */
private ValueExpression getVarExpression(ValueExpression expr) {
    Object o = expr.getValue(pageContext.getELContext());
    if (o.getClass().isArray() || o instanceof List) {
        return new IndexedValueExpression(__value, index);
    }

    if (o instanceof Collection || o instanceof Iterator || o instanceof Enumeration || o instanceof Map
            || o instanceof String) {

        if (iteratedExpression == null) {
            iteratedExpression = new IteratedExpression(__value, getDelims());
        }
        return new IteratedValueExpression(iteratedExpression, index);
    }

    throw new ELException("FOREACH_BAD_ITEMS: [" + o.getClass().getName()
            + "] is not iterable item. Only [List, Array, Collection, Enumeration, Map, String] are supported.");
}

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From source file:org.openfaces.component.table.TableDataModel.java

private int requestNonPagedRowCount() {
    AbstractTable table = getTable();/*from w  w w  .  j  a  va2 s  . c  om*/
    setFilteringCriteriaToRequestVariable();
    ValueExpression valueExpression = table.getValueExpression("totalRowCount");
    if (valueExpression == null)
        throw new IllegalStateException(
                "totalRowCount must be defined for pagination with custom data providing to work. table id = "
                        + table.getClientId(FacesContext.getCurrentInstance()));
    Object value = valueExpression.getValue(FacesContext.getCurrentInstance().getELContext());
    restoreRequestVariable(VAR_FILTER_CRITERIA);
    if (value.getClass().equals(Long.class) || value.getClass().equals(long.class))
        value = ((Long) value).intValue();
    if (!(value instanceof Integer))
        throw new IllegalStateException("totalRowCount must return an int (or Integer) number, but returned: "
                + (value != null ? value.getClass().getName() : "null") + "; table id = "
                + table.getClientId(FacesContext.getCurrentInstance()));
    return (Integer) value;
}

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From source file:org.apache.empire.jsf2.utils.TagEncodingHelper.java

public Object getTagAttributeValue(String name) {
    Object value = tag.getAttributes().get(name);
    if (value == null) { // try value expression
        ValueExpression ve = tag.getValueExpression(name);
        if (ve != null) { // It's a value expression
            FacesContext ctx = FacesContext.getCurrentInstance();
            value = ve.getValue(ctx.getELContext());
        }//w w w.  j a  va 2 s.co m
    }
    return value;
}

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From source file:org.jbuilt.components.html.raw.base.AbstractCommandComponent.java

/**
 * @return the value/*  ww  w  . j a v a  2 s.  c  o m*/
 */
@Override
public Object getValue() {
    if (value != null) {
        return value;
    }
    ValueExpression vb = getValueExpression("value");
    if (vb != null) {
        return vb.getValue(getFacesContext().getELContext());
    }
    return null;
}

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