public virtual void DoEqualsAndHashCode(string savedToClass, ClassMapping classMapping, StringWriter writer)
{
if (classMapping.MustImplementEquals())
{
writer.WriteLine(" public override bool Equals(object obj) {");
writer.WriteLine(" if(this == obj) return true;");
writer.WriteLine(" if((obj == null) || (obj.GetType() != this.GetType())) return false;");
writer.WriteLine(" " + savedToClass + " castObj = (" + savedToClass + ") obj;");
writer.Write(" return (castObj != null) ");
int usedFields = 0;
SupportClass.ListCollectionSupport idFields = new SupportClass.ListCollectionSupport();
for (IEnumerator fields = classMapping.Fields.GetEnumerator(); fields.MoveNext();)
{
FieldProperty field = (FieldProperty) fields.Current;
if (field.GetMetaAsBool("use-in-equals"))
{
writer.Write(" && (this." + field.fieldcase + " == castObj." + field.fieldcase + ")");
usedFields++;
}
if (field.Identifier)
{
idFields.Add(field);
}
}
if (usedFields == 0)
{
log.Warn("No properties has been marked as being used in equals/hashcode for " + classMapping.Name +
". Using object identifier which is RARELY safe to use! See http://hibernate.org/109.html");
for (IEnumerator fields = idFields.GetEnumerator(); fields.MoveNext();)
{
FieldProperty field = (FieldProperty) fields.Current;
writer.Write(" && (this." + field.fieldcase + " == castObj." + field.fieldcase + ")");
}
}
writer.WriteLine(";");
writer.WriteLine(" }");
writer.WriteLine();
writer.WriteLine(" public override int GetHashCode() {");
writer.WriteLine(" int hash = 69;");
//writer.Write(" return");
for (IEnumerator fields = classMapping.Fields.GetEnumerator(); fields.MoveNext();)
{
FieldProperty field = (FieldProperty) fields.Current;
if (field.GetMetaAsBool("use-in-equals"))
{
//writer.Write("\n " + field.FieldName + ".GetHashCode() ^");
writer.WriteLine(" hash = 31 * hash + " + field.fieldcase + ".GetHashCode();");
}
}
if (usedFields == 0)
{
for (IEnumerator fields = idFields.GetEnumerator(); fields.MoveNext();)
{
FieldProperty field = (FieldProperty) fields.Current;
//writer.Write("\n " + field.FieldName + ".GetHashCode() ^");
writer.WriteLine(" hash = 31 * hash + " + field.fieldcase + ".GetHashCode();");
}
}
//writer.WriteLine(" 0;");
writer.WriteLine(" return hash;");
writer.WriteLine(" }");
writer.WriteLine();
}
}
