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.jbuilt.components.html.raw.base.AbstractCommandComponent.java

@SuppressWarnings("unchecked")
public <T> T getExpressionValue(UIComponent component, String attribute, T overrideValue, T defaultValue) {
    if (overrideValue != null) {
        return overrideValue;
    }/*from  ww w . j a  v  a  2 s  . com*/
    ValueExpression ve = component.getValueExpression(attribute);
    if (ve != null) {
        return (T) ve.getValue(getFacesContext().getELContext());
    }
    return defaultValue;
}

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

public String getAcceptcharset() {
    if (acceptcharset != null) {
        return acceptcharset;
    }//  w  w  w . j a  v  a 2 s.com
    ValueExpression vb = getValueExpression("acceptcharset");
    if (vb != null) {
        return (String) vb.getValue(getFacesContext().getELContext());
    }
    return null;
}

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

/**
 * Gets model name exposed in request map.
 *///w ww  .ja v a  2 s.  c o m
public String getModel() {
    if (model != null) {
        return model;
    }
    ValueExpression ve = getValueExpression("model");
    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.component.list.UIEditableList.java

public Integer getNumber() {
    if (number != null) {
        return number;
    }//w  ww  .j a va  2  s .c om
    ValueExpression ve = getValueExpression("number");
    if (ve != null) {
        try {
            return ((Number) ve.getValue(getFacesContext().getELContext())).intValue();
        } catch (ELException e) {
            throw new FacesException(e);
        }
    } else {
        // default value
        return null;
    }
}

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

/**
 * Gets template to be used when adding new values to the model.
 *///w  w  w.ja v  a2 s . c  o m
public Object getTemplate() {
    if (template != null) {
        return template;
    }
    ValueExpression ve = getValueExpression("template");
    if (ve != null) {
        try {
            Object res = ve.getValue(getFacesContext().getELContext());
            if (res instanceof String) {
                // try to resolve a second time in case it's an expression
                res = ComponentTagUtils.resolveElExpression(getFacesContext(), (String) res);
            }
            return res;
        } catch (ELException e) {
            throw new FacesException(e);
        }
    } else {
        return null;
    }
}

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

/**
 * Gets boolean stating if diff must be used when saving the value submitted.
 *///from  w ww  .ja  v a  2s  .co  m
public Boolean getDiff() {
    if (diff != null) {
        return diff;
    }
    ValueExpression ve = getValueExpression("diff");
    if (ve != null) {
        try {
            return !Boolean.FALSE.equals(ve.getValue(getFacesContext().getELContext()));
        } catch (ELException e) {
            throw new FacesException(e);
        }
    } else {
        // default value
        return false;
    }
}

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

/**
 * @return the value//w  w  w  .  java2s  .c  o m
 */
public Object getValue() {
    if (value != null) {
        return value;
    }
    ValueExpression vb = getValueExpression("value");
    if (vb != null) {
        return vb.getValue(getFacesContext().getELContext());
    }
    return null;
}

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

public Boolean getRemoveEmpty() {
    if (removeEmpty != null) {
        return removeEmpty;
    }//from   w  w w  . j  a  v  a  2 s . c o  m
    ValueExpression ve = getValueExpression("removeEmpty");
    if (ve != null) {
        try {
            return !Boolean.FALSE.equals(ve.getValue(getFacesContext().getELContext()));
        } catch (ELException e) {
            throw new FacesException(e);
        }
    } else {
        // default value
        return false;
    }
}

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

@SuppressWarnings("unchecked")
public <T> T getExpressionValue(UIComponent component, String attribute, T overrideValue, T defaultValue) {
    component = this;

    if (overrideValue != null) {
        return overrideValue;
    }/*from ww  w. java2 s .c  o  m*/
    ValueExpression ve = component.getValueExpression(attribute);
    if (ve != null) {
        return (T) ve.getValue(getFacesContext().getELContext());
    }
    return defaultValue;
}

From source file:org.crank.javax.faces.component.MenuRenderer.java

public Object convertSelectManyValue(FacesContext context, UISelectMany uiSelectMany, String[] newValues)
        throws ConverterException {

    // if we have no local value, try to get the valueExpression.
    ValueExpression valueExpression = uiSelectMany.getValueExpression("value");

    Object result = newValues; // default case, set local value
    Class<?> modelType = null;
    boolean throwException = false;

    // If we have a ValueExpression
    if (null != valueExpression) {
        modelType = valueExpression.getType(context.getELContext());
        // Does the valueExpression resolve properly to something with
        // a type?
        if (modelType != null) {
            result = convertSelectManyValuesForModel(context, uiSelectMany, modelType, newValues);
        }//from www.  j a v a2s.c o  m
        // If it could not be converted, as a fall back try the type of
        // the valueExpression's current value covering some edge cases such
        // as where the current value came from a Map.
        if (result == null) {
            Object value = valueExpression.getValue(context.getELContext());
            if (value != null) {
                result = convertSelectManyValuesForModel(context, uiSelectMany, value.getClass(), newValues);
            }
        }
        if (result == null) {
            throwException = true;
        }
    } else {
        // No ValueExpression, just use Object array.
        result = convertSelectManyValues(context, uiSelectMany, Object[].class, newValues);
    }
    if (throwException) {
        StringBuffer values = new StringBuffer();
        if (null != newValues) {
            for (int i = 0; i < newValues.length; i++) {
                if (i == 0) {
                    values.append(newValues[i]);
                } else {
                    values.append(' ').append(newValues[i]);
                }
            }
        }
        Object[] params = { values.toString(), valueExpression.getExpressionString() };
        throw new ConverterException(
                MessageUtils.getExceptionMessage(MessageUtils.CONVERSION_ERROR_MESSAGE_ID, params));
    }

    // At this point, result is ready to be set as the value
    if (logger.isLoggable(Level.FINE)) {
        logger.fine("SelectMany Component  " + uiSelectMany.getId() + " convertedValues " + result);
    }
    return result;

}