Example usage for org.hibernate.mapping PersistentClass getIdentifierMapper

Introduction

In this page you can find the example usage for org.hibernate.mapping PersistentClass getIdentifierMapper.

Prototype

public Component getIdentifierMapper() 

Source Link

Usage

From source file:org.libreplan.business.common.LibrePlanClassValidator.java

License:Open Source License

/**
 * Retrieve the property by path in a recursive way, including IndetifierProperty in the loop
 * If propertyName is null or empty, the IdentifierProperty is returned
 *//* w  w  w. j av  a2s  .  c o  m*/
public static Property findPropertyByName(PersistentClass associatedClass, String propertyName) {
    Property property = null;
    Property idProperty = associatedClass.getIdentifierProperty();
    String idName = idProperty != null ? idProperty.getName() : null;
    try {
        if (propertyName == null || propertyName.length() == 0 || propertyName.equals(idName)) {
            //default to id
            property = idProperty;
        } else {
            if (propertyName.indexOf(idName + ".") == 0) {
                property = idProperty;
                propertyName = propertyName.substring(idName.length() + 1);
            }
            StringTokenizer st = new StringTokenizer(propertyName, ".", false);
            while (st.hasMoreElements()) {
                String element = (String) st.nextElement();
                if (property == null) {
                    property = associatedClass.getProperty(element);
                } else {
                    if (!property.isComposite())
                        return null;
                    property = ((Component) property.getValue()).getProperty(element);
                }
            }
        }
    } catch (MappingException e) {
        try {
            //if we do not find it try to check the identifier mapper
            if (associatedClass.getIdentifierMapper() == null)
                return null;
            StringTokenizer st = new StringTokenizer(propertyName, ".", false);
            while (st.hasMoreElements()) {
                String element = (String) st.nextElement();
                if (property == null) {
                    property = associatedClass.getIdentifierMapper().getProperty(element);
                } else {
                    if (!property.isComposite())
                        return null;
                    property = ((Component) property.getValue()).getProperty(element);
                }
            }
        } catch (MappingException ee) {
            return null;
        }
    }
    return property;
}

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