/**
* Get a non-modal boolean property value. Returns a given default value if no property value
* exists. Throws an exception if an error occurs.
*
* @param ph The property holder from which to retrieve the property value.
* @param pd The property to retrieve.
* @param defaultVal The value to return if the property has no value.
* @return The boolean value of the property.
*/
public static boolean getBooleanValue(
final NamedElement ph, final Property pd, final boolean defaultVal) {
try {
final PropertyExpression pv = getSimplePropertyValue(ph, pd);
final BooleanLiteral v = (BooleanLiteral) pv;
return v.getValue();
} catch (PropertyLookupException e) {
return defaultVal;
}
}