/// <summary>
///
/// </summary>
/// <returns></returns>
public override int GetHashCode()
{
HashCodeBuilder hashBuilder = new HashCodeBuilder(SEED, PRIME_NUMBER);
hashBuilder.Append(CtlIdx).Append(Isn);
return(hashBuilder.HashCode);
}
/// <summary>
/// Appends the fields and values defined by the given object of the given Class.
/// </summary>
/// <param name="builder">the builder to Append to</param>
/// <param name="clazz">the class to Append details of</param>
/// <param name="obj">the object to Append details of</param>
/// <param name="useTransients">whether to use transient fields</param>
private static void reflectionAppend(object obj, Type clazz, HashCodeBuilder builder, bool useTransients)
{
var fields =
clazz.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic
| BindingFlags.GetField);
//AccessibleObject.setAccessible(fields, true);
for (var i = 0; i < fields.Length; i++)
{
var f = fields[i];
if (f.Name.IndexOf('$') == -1 &&
(useTransients || !isTransient(f)) &&
!f.IsStatic)
{
try
{
builder.Append(f.GetValue(obj));
}
catch (Exception e)
{
//this can't happen. Would get a Security exception instead
//throw a runtime exception in case the impossible happens.
throw new Exception("Unexpected IllegalAccessException");
}
}
}
}
public override int GetHashCode()
{
HashCodeBuilder hashBuilder = new HashCodeBuilder();
hashBuilder.Append(StartPosition).Append(EndPosition).Append(Name);
return(hashBuilder.HashCode);
}
public override int GetHashCode()
{
// This might not work properly for blobs.
var hashBuilder = new HashCodeBuilder();
hashBuilder.Append((IsNull || Value == null) ? 0 : Value.GetHashCode());
return(hashBuilder.HashCode);
}
public override int GetHashCode()
{
HashCodeBuilder hashBuilder = new HashCodeBuilder();
hashBuilder.Append(dataSourceIdentifier)
.Append(controlId)
.Append(rangeComparer.GetHashCode(rangeDataList));
return(hashBuilder.HashCode);
}
public override int GetHashCode()
{
var hashBuilder = new HashCodeBuilder();
hashBuilder.Append(Discard ? 1 : 2)
.Append((int)Type)
.Append(Value == null ? 0 : Value.GetHashCode());
return(hashBuilder.HashCode);
}
public override int GetHashCode()
{
var hashBuilder = new HashCodeBuilder();
hashBuilder.Append(DatetimeRangeIdx)
.Append(FieldIndex)
.Append(Max)
.Append(Min);
return(hashBuilder.HashCode);
}
public override int GetHashCode()
{
if (!hashCodeBuilded)
{
HashCodeBuilder builder = new HashCodeBuilder();
//StructureType
builder.Append(StructureType);
//descriptor
builder.Append(descriptor);
//Items
for (int i = 0; i < Path.Length; i++)
{
builder.Append(Path[i]);
}
hashCode = builder.GetHashCode();
hashCodeBuilded = true;
}
return(hashCode);
}
/// <summary>
/// Instantiates a new function predicate.
/// </summary>
/// <param name="resolutionType">The type of resolution for the function.</param>
/// <param name="predicate">The predicate value, i.e. the string representation of the function predicate.</param>
/// <param name="bob">The business object binder to use when evaluating the function, or null.</param>
/// <param name="name">The name of the function, as it was analyzed by the binder.</param>
/// <param name="arguments">The array of arguments of the function, as it was analyzed by the binder.</param>
public Function(FunctionResolutionType resolutionType, string predicate, IBinder bob, string name, params string[] arguments) : base(predicate)
{
this.resolutionType = resolutionType;
this.bob = bob;
this.name = name;
this.arguments = arguments;
var hcb = new HashCodeBuilder(base.GetHashCode()).Append(resolutionType).Append(bob).Append(name);
foreach (var argument in arguments)
{
hcb.Append(argument);
}
hashCode = hcb.Value;
// precalculate the function signature to use in the binder to evaluate the function
functionSignature = Parameter.BuildFunctionSignature(name, arguments);
}
/// <summary>
/// Instantiates a new atom group.
/// </summary>
/// <param name="logicalOperator">The operator that characterizes the relationship between the atoms and atoms group.</param>
/// <param name="members">An array containing atoms and atom groups.</param>
/// <param name="runningMembers">An array containing atoms and atom groups that will actually be run (they can be different
/// from the members because of atom equivalence).</param>
internal AtomGroup(LogicalOperator logicalOperator, object[] members, object[] runningMembers)
{
this.logicalOperator = logicalOperator;
this.members = members;
HashCodeBuilder hcb = new HashCodeBuilder();
hcb.Append(logicalOperator);
SortedList <int, object> sortedMembers = new SortedList <int, object>(Comparer <int> .Default);
// check the members, compute hashcode and build sorted members list
for (int i = 0; i < members.Length; i++)
{
object member = members[i];
if (member == null)
{
throw new BREException("An atom group can not contain a null member");
}
else if (member is AtomGroup)
{
if (((AtomGroup)member).logicalOperator == logicalOperator)
{
throw new BREException("An atom group can not contain another group with the same logical operator");
}
}
else if (member is Atom)
{
if (((Atom)member).HasFormula)
{
throw new BREException("An atom group can not contain an atom that contains a formula");
}
}
else
{
throw new BREException("An atom group can not hold objects of type: " + member.GetType());
}
hcb.Append(member);
if (runningMembers == null)
{
sortedMembers.Add(GetMemberSortedIndex(members, i), member);
}
}
hashCode = hcb.Value;
// the members actually used when processing the atom group are not the ones defined in the rule file (usually because of equivalent atoms definitions)
if (runningMembers != null)
{
for (int i = 0; i < runningMembers.Length; i++)
{
sortedMembers.Add(GetMemberSortedIndex(runningMembers, i), runningMembers[i]);
}
}
orderedMembers = sortedMembers.Values;
allAtoms = new List <Atom>();
foreach (object member in orderedMembers)
{
if (member is Atom)
{
allAtoms.Add((Atom)member);
}
else if (member is AtomGroup)
{
allAtoms.AddRange(((AtomGroup)member).AllAtoms);
}
}
}
/// <summary>
/// Instantiates a new Atom.
/// </summary>
/// <param name="negative">Negative Atom.</param>
/// <param name="label">The Label of the new Fact.</param>
/// <param name="type">The relation type of the Atom.</param>
/// <param name="members">Array of predicates associated in the Atom.</param>
/// <remarks>This is the principal constructor for Atom and descendant objects.</remarks>
internal Atom(bool negative, string label, string type, params IPredicate[] members)
{
this.negative = negative;
this.label = (label == String.Empty)?null:label;
this.type = type;
// load the predicates, extracting the slot names if any
predicates = new IPredicate[members.Length];
slotNames = new string[members.Length];
hasSlot = false;
for (int i = 0; i < members.Length; i++)
{
if (members[i] is Slot)
{
hasSlot = true;
Slot slot = (Slot)members[i];
predicates[i] = slot.Predicate;
slotNames[i] = slot.Name;
}
else
{
predicates[i] = members[i];
slotNames[i] = String.Empty;
}
}
// initialize long hashcode & other characteristics
HashCodeBuilder hcb = new HashCodeBuilder().Append(type);
isFact = true;
hasFunction = false;
hasFormula = false;
hasIndividual = false;
onlyVariables = true;
foreach (IPredicate member in predicates)
{
hcb.Append(member);
if (member is Individual)
{
hasIndividual = true;
}
else
{
isFact = false;
}
if (!(member is Variable))
{
onlyVariables = false;
}
if (member is Function)
{
hasFunction = true;
}
else if (member is Formula)
{
hasFormula = true;
}
}
hashCode = hcb.Value;
// initialize signature
signature = type + predicates.Length;
}
