/// <summary> Method will compile exists quantifier
/// </summary>
public override void compile(ICondition condition, int position, Rule.IRule util, bool alphaMemory)
{
ExistCondition cond = (ExistCondition)condition;
ObjectCondition oc = (ObjectCondition)cond;
conditionCompiler.compile(oc, position, util, alphaMemory);
}
public override void compileSingleCE(Rule.IRule rule)
{
ICondition[] conds = rule.Conditions;
ObjectCondition oc = (ObjectCondition)conds[0];
if (oc.Negated)
{
// the ObjectCondition is negated, so we need to
// handle it appropriate. This means we need to
// Add a LIANode to _IntialFact and attach a NOTNode
// to the LIANode.
ObjectTypeNode otn = (ObjectTypeNode)ruleCompiler.Inputnodes.Get(ruleCompiler.Engine.InitFact);
LIANode lianode = ruleCompiler.findLIANode(otn);
NotJoin njoin = new NotJoin(ruleCompiler.Engine.nextNodeId());
njoin.Bindings = new Binding[0];
lianode.addSuccessorNode(njoin, ruleCompiler.Engine, ruleCompiler.Memory);
// Add the join to the rule object
rule.addJoinNode(njoin);
oc.LastNode.addSuccessorNode(njoin, ruleCompiler.Engine, ruleCompiler.Memory);
}
else if (oc.Nodes.Count == 0)
{
// this means the rule has a binding, but no conditions
ObjectTypeNode otn = ruleCompiler.findObjectTypeNode(oc.TemplateName);
LIANode lianode = new LIANode(ruleCompiler.Engine.nextNodeId());
otn.addSuccessorNode(lianode, ruleCompiler.Engine, ruleCompiler.Memory);
rule.Conditions[0].addNode(lianode);
}
}
public override void compileSingleCE(Rule.IRule rule)
{
ICondition[] conds = rule.Conditions;
ICondition condition = conds[0];
ExistCondition cond = (ExistCondition)condition;
BaseNode base_Renamed = cond.LastNode;
BaseJoin bjoin = new ExistJoinFrst(ruleCompiler.Engine.nextNodeId());
if (base_Renamed != null)
{
if (base_Renamed is BaseAlpha)
{
((BaseAlpha)base_Renamed).addSuccessorNode(bjoin, ruleCompiler.Engine, ruleCompiler.Memory);
}
else if (base_Renamed is BaseJoin)
{
((BaseJoin)base_Renamed).addSuccessorNode(bjoin, ruleCompiler.Engine, ruleCompiler.Memory);
}
}
else
{
// the rule doesn't have a literal constraint so we need to Add
// ExistJoinFrst as a child
ObjectTypeNode otn = ruleCompiler.findObjectTypeNode(cond.TemplateName);
otn.addSuccessorNode(bjoin, ruleCompiler.Engine, ruleCompiler.Memory);
}
// important, do not call this before ExistJoinFrst is added
// if it's called first, the List<Object> will return index
// out of bound, since there's nothing in the list
cond.addNode(bjoin);
rule.addJoinNode(bjoin);
}
/// <summary>
/// </summary>
/// <param name="">util
///
/// </param>
public virtual void compileBinding(Rule.IRule util)
{
List <object> list = new List <Object>();
for (int idx = 0; idx < slots.Length; idx++)
{
if (slots[idx].Value is BoundParam)
{
hasBinding_Renamed_Field = true;
list.Add(slots[idx]);
BoundParam bp = (BoundParam)slots[idx].Value;
Binding bd = util.getBinding(bp.VariableName);
if (bd != null)
{
bp.rowId = bd.LeftRow;
bp.column = bd.LeftIndex;
}
}
}
if (list.Count > 0)
{
Slot[] ary = new Slot[list.Count];
list.CopyTo(ary, 0);
boundSlots = ary;
}
}
/// <summary>
/// The method is responsible for compiling the string form of the
/// actions to the equivalent functions.
/// </summary>
/// <param name="rule">The rule.</param>
/// <param name="acts">The acts.</param>
protected internal virtual void compileActions(Rule.IRule rule, IAction[] acts)
{
for (int idx = 0; idx < acts.Length; idx++)
{
IAction atn = acts[idx];
atn.configure(engine, rule);
}
}
public override void compileFirstJoin(ICondition condition, Rule.IRule rule)
{
ObjectCondition cond = (ObjectCondition)condition;
ObjectTypeNode otn = ruleCompiler.findObjectTypeNode(cond.TemplateName);
// the LeftInputAdapterNode is the first node to propogate to
// the first joinNode of the rule
LIANode node = new LIANode(ruleCompiler.Engine.nextNodeId());
// if the condition doesn't have any nodes, we want to Add it to
// the objectType node if one doesn't already exist.
// otherwise we Add it to the last AlphaNode
if (cond.Nodes.Count == 0)
{
// try to find the existing LIANode for the given ObjectTypeNode
// if we don't do this, we end up with multiple LIANodes
// descending directly from the ObjectTypeNode
LIANode existingLIANode = ruleCompiler.findLIANode(otn);
if (existingLIANode == null)
{
otn.addSuccessorNode(node, ruleCompiler.Engine, ruleCompiler.Memory);
cond.addNode(node);
}
else
{
existingLIANode.incrementUseCount();
cond.addNode(existingLIANode);
}
}
else
{
// Add the LeftInputAdapterNode to the last alphaNode
// In the case of node sharing, the LIANode could be the last
// alphaNode, so we have to check and only Add the node to
// the condition if it isn't a LIANode
BaseAlpha old = (BaseAlpha)cond.LastNode;
//if the last node of condition has a LIANode successor,
//the LIANode should be shared with the new CE followed by another CE.
// Houzhanbin,10/16/2007
BaseNode[] successors = (BaseNode[])old.SuccessorNodes;
for (int i = 0; i < successors.Length; i++)
{
if (successors[i] is LIANode)
{
cond.addNode(successors[i]);
return;
}
}
if (!(old is LIANode))
{
old.addSuccessorNode(node, ruleCompiler.Engine, ruleCompiler.Memory);
cond.addNode(node);
}
}
}
/// <summary> method compiles ObjectConditions, which include NOTCE
/// </summary>
public override BaseJoin compileJoin(ICondition condition, int position, Rule.IRule rule)
{
Binding[] binds = getBindings(condition, rule, position);
ObjectCondition oc = (ObjectCondition)condition;
BaseJoin joinNode = null;
//deal with the CE which is not NOT CE.
if (!oc.Negated)
{
if (binds.Length > 0 && oc.HasPredicateJoin)
{
joinNode = new PredicateBNode(ruleCompiler.Engine.nextNodeId());
}
else if (binds.Length > 0 && oc.HasNotEqual)
{
joinNode = new HashedNotEqBNode(ruleCompiler.Engine.nextNodeId());
}
else if (binds.Length > 0)
{
joinNode = new HashedEqBNode(ruleCompiler.Engine.nextNodeId());
}
else if (binds.Length == 0)
{
joinNode = new ZJBetaNode(ruleCompiler.Engine.nextNodeId());
}
}
//deal with the CE which is NOT CE.
if (oc.Negated)
{
if (binds.Length > 0 && oc.HasPredicateJoin)
{
joinNode = new NotJoin(ruleCompiler.Engine.nextNodeId());
}
else if (oc.HasNotEqual)
{
joinNode = new HashedNotEqNJoin(ruleCompiler.Engine.nextNodeId());
}
else
{
joinNode = new HashedEqNJoin(ruleCompiler.Engine.nextNodeId());
}
}
if (joinNode != null)
{
joinNode.Bindings = binds;
}
return(joinNode);
}
public override BaseJoin compileJoin(ICondition condition, int position, Rule.IRule rule)
{
Binding[] binds = getBindings(condition, rule, position);
TemporalCondition tc = (TemporalCondition)condition;
TemporalEqNode joinNode = null;
//deal with the CE which is not NOT CE.
if (!tc.Negated)
{
if (binds.Length > 0 && tc.HasPredicateJoin)
{
joinNode = new TemporalEqNode(ruleCompiler.Engine.nextNodeId());
}
else if (binds.Length > 0 && tc.HasNotEqual)
{
joinNode = new TemporalEqNode(ruleCompiler.Engine.nextNodeId());
}
else if (binds.Length > 0)
{
joinNode = new TemporalEqNode(ruleCompiler.Engine.nextNodeId());
}
}
//deal with the CE which is NOT CE.
if (tc.Negated)
{
if (binds.Length > 0 && tc.HasPredicateJoin)
{
joinNode = new TemporalEqNode(ruleCompiler.Engine.nextNodeId());
}
else if (tc.HasNotEqual)
{
joinNode = new TemporalEqNode(ruleCompiler.Engine.nextNodeId());
}
else
{
joinNode = new TemporalEqNode(ruleCompiler.Engine.nextNodeId());
}
}
joinNode.Bindings = binds;
joinNode.RightElapsedTime = tc.RelativeTime * 1000;
return(joinNode);
}
/// <summary>
/// The method is responsible for creating the right terminal node based on the
/// settings for the rule.
/// </summary>
/// <param name="rl">The rl.</param>
/// <returns></returns>
protected internal virtual TerminalNode createTerminalNode(Rule.IRule rl)
{
if (rl.NoAgenda && rl.ExpirationDate == 0)
{
return(new NoAgendaTNode(engine.nextNodeId(), rl));
}
else if (rl.NoAgenda && rl.ExpirationDate > 0)
{
return(new NoAgendaTNode2(engine.nextNodeId(), rl));
}
else if (rl.ExpirationDate > 0)
{
return(new TerminalNode3(engine.nextNodeId(), rl));
}
else
{
return(new TerminalNode2(engine.nextNodeId(), rl));
}
}
/// <summary>
/// Printout the memory for the given rule.
/// </summary>
/// <param name="rule">The rule.</param>
public virtual void printWorkingMemory(Rule.IRule rule)
{
engine.writeMessage("Memories for " + rule.Name);
ICondition[] conds = rule.Conditions;
int memTotal = 0;
for (int idx = 0; idx < conds.Length; idx++)
{
ICondition c = conds[idx];
IList l = c.Nodes;
IEnumerator itr = l.GetEnumerator();
while (itr.MoveNext())
{
BaseNode key = (BaseNode)itr.Current;
IAlphaMemory am = (IAlphaMemory)alphaMemories.Get(key);
engine.writeMessage(key.toPPString() + " count=" + am.size() + Constants.LINEBREAK);
memTotal += am.size();
}
}
}
/// <summary> method compiles ExistCE to an exist node. It does not include rules that
/// start with Exist for the first CE.
/// </summary>
public override BaseJoin compileJoin(ICondition condition, int position, Rule.IRule rule)
{
ExistCondition exc = (ExistCondition)condition;
Binding[] binds = getBindings(exc, rule, position);
BaseJoin joinNode = null;
if (exc.HasPredicateJoin)
{
joinNode = new ExistPredJoin(ruleCompiler.Engine.nextNodeId());
}
else if (exc.HasNotEqual)
{
joinNode = new ExistNeqJoin(ruleCompiler.Engine.nextNodeId());
}
else
{
joinNode = new ExistJoin(ruleCompiler.Engine.nextNodeId());
}
joinNode.Bindings = binds;
return(joinNode);
}
/// <summary> the method is responsible for compiling a TestCE pattern to a testjoin node.
/// It uses the globally declared prevCE and prevJoinNode
/// </summary>
public virtual BaseJoin compileJoin(ICondition condition, int position, Rule.IRule rule)
{
TestCondition tc = (TestCondition)condition;
ShellFunction fn = (ShellFunction)tc.Function;
fn.lookUpFunction(ruleCompiler.Engine);
IParameter[] oldpm = fn.Parameters;
IParameter[] pms = new IParameter[oldpm.Length];
for (int ipm = 0; ipm < pms.Length; ipm++)
{
if (oldpm[ipm] is ValueParam)
{
pms[ipm] = ((ValueParam)oldpm[ipm]).cloneParameter();
}
else if (oldpm[ipm] is BoundParam)
{
BoundParam bpm = (BoundParam)oldpm[ipm];
// now we need to resolve and setup the BoundParam
Binding b = rule.getBinding(bpm.VariableName);
BoundParam newpm = new BoundParam(b.LeftRow, b.LeftIndex, 9, bpm.ObjectBinding);
newpm.VariableName = bpm.VariableName;
pms[ipm] = newpm;
}
}
BaseJoin joinNode = null;
if (tc.Negated)
{
joinNode = new NTestNode(ruleCompiler.Engine.nextNodeId(), fn.Function, pms);
}
else
{
joinNode = new TestNode(ruleCompiler.Engine.nextNodeId(), fn.Function, pms);
}
((TestNode)joinNode).lookUpFunction(ruleCompiler.Engine);
return(joinNode);
}
/// <summary>
/// Compiles the joins.
/// </summary>
/// <param name="rule">The rule.</param>
public virtual void compileJoins(Rule.IRule rule)
{
ICondition[] conds = rule.Conditions;
BaseJoin prevJoinNode = null;
BaseJoin joinNode = null;
ICondition prevCE = null;
// only if there's more than 1 condition do we attempt to
// create the join nodes. A rule with just 1 condition has
// no joins
if (conds.Length > 1)
{
// previous Condition
prevCE = conds[0];
//this.compileFirstJoin(engine, memory); moved to the ConditionCompiler.compileFirstJoin method
prevCE.getCompiler(this).compileFirstJoin(prevCE, rule);
// now compile the remaining conditions
for (int idx = 1; idx < conds.Length; idx++)
{
ICondition cdt = conds[idx];
joinNode = cdt.getCompiler(this).compileJoin(cdt, idx, rule);
cdt.getCompiler(this).connectJoinNode(prevCE, cdt, prevJoinNode, joinNode);
// now we set the previous node to current
prevCE = cdt;
prevJoinNode = joinNode;
rule.addJoinNode(joinNode);
}
}
else if (conds.Length == 1)
{
conds[0].getCompiler(this).compileSingleCE(rule);
}
}
/// <summary> Remove a rule from this module
/// </summary>
public virtual void removeRule(Rule.IRule rl, Rete engine, IWorkingMemory mem)
{
rules.Remove(rl.Name);
// we should iterate over the nodes of the rule and Remove
// them if they are not shared
ICondition[] cnds = rl.Conditions;
// first Remove the alpha nodes
for (int idx = 0; idx < cnds.Length; idx++)
{
ICondition cnd = cnds[idx];
if (cnd is ObjectCondition)
{
ObjectCondition oc = (ObjectCondition)cnd;
String templ = oc.TemplateName;
Deftemplate temp = (Deftemplate)deftemplates.Get(templ);
ObjectTypeNode otn = mem.RuleCompiler.getObjectTypeNode(temp);
removeAlphaNodes(oc.Nodes, otn);
}
}
// now Remove the betaNodes, since the engine currently
// doesn't share the betaNodes, we can just Remove it
IList bjl = rl.Joins;
for (int idx = 0; idx < bjl.Count; idx++)
{
BaseJoin bjoin = (BaseJoin)bjl[idx];
ICondition cnd = cnds[idx + 1];
if (cnd is ObjectCondition)
{
ObjectCondition oc = (ObjectCondition)cnd;
String templ = oc.TemplateName;
Deftemplate temp = (Deftemplate)deftemplates.Get(templ);
ObjectTypeNode otn = mem.RuleCompiler.getObjectTypeNode(temp);
otn.removeNode(bjoin);
}
}
}
public virtual void configure(Rete engine, Rule.IRule util)
{
if (this.engine == null)
{
this.engine = engine;
}
for (int idx = 0; idx < params_Renamed.Length; idx++)
{
if (params_Renamed[idx] is BoundParam)
{
// we need to set the row value if the binding is a slot or fact
BoundParam bp = (BoundParam)params_Renamed[idx];
Binding b1 = util.getBinding(bp.VariableName);
if (b1 != null)
{
bp.Row = b1.LeftRow;
if (b1.LeftIndex == -1)
{
bp.setObjectBinding(true);
}
}
}
}
}
public abstract void compileSingleCE(Rule.IRule rule);
/// <param name="">id
///
/// </param>
public NoAgendaTNode2(int id, Rule.IRule rl)
: base(id, rl)
{
theRule = rl;
}
/// <summary>
/// method compiles OrLiteralConstraint into alpha nodes
/// </summary>
/// <param name="cnstr">The CNSTR.</param>
/// <param name="templ">The templ.</param>
/// <param name="rule">The rule.</param>
/// <returns></returns>
public virtual BaseAlpha2 compileConstraint(OrLiteralConstraint cnstr, ITemplate templ, Rule.IRule rule)
{
BaseAlpha2 current = null;
if (templ.getSlot(cnstr.Name) != null)
{
Slot2 sl = new Slot2(cnstr.Name);
sl.Id = templ.getColumnIndex(cnstr.Name);
Object sval = cnstr.Value;
sl.Value = sval;
if (rule.RememberMatch)
{
current = new AlphaNodeOr(engine.nextNodeId());
}
else
{
current = new NoMemOr(engine.nextNodeId());
}
current.Slot = sl;
current.incrementUseCount();
// we increment the node use count when when create a new
// AlphaNode for the LiteralConstraint
templ.getSlot(sl.Id).incrementNodeCount();
}
return(current);
}
/// <summary>
/// method creates Bindings from the bound constraint and adds them to
/// the Rule.
/// </summary>
/// <param name="cnstr">The CNSTR.</param>
/// <param name="templ">The templ.</param>
/// <param name="rule">The rule.</param>
/// <param name="position">The position.</param>
/// <returns></returns>
public virtual BaseAlpha2 compileConstraint(BoundConstraint cnstr, ITemplate templ, Rule.IRule rule, int position)
{
BaseAlpha2 current = null;
if (rule.getBinding(cnstr.VariableName) == null)
{
// if the HashMap doesn't already contain the binding, we create
// a new one
if (cnstr.IsObjectBinding)
{
Binding bind = new Binding();
bind.VarName = cnstr.VariableName;
bind.LeftRow = position;
bind.LeftIndex = -1;
bind.IsObjectVar = true;
rule.addBinding(cnstr.VariableName, bind);
}
else
{
Binding bind = new Binding();
bind.VarName = cnstr.VariableName;
bind.LeftRow = position;
bind.LeftIndex = templ.getSlot(cnstr.Name).Id;
bind.RowDeclared = position;
cnstr.FirstDeclaration = true;
rule.addBinding(cnstr.VariableName, bind);
}
}
return(current);
}
/// <param name="">id
/// </param>
/// <param name="">rl
///
/// </param>
public TemporalTNode(int id, Rule.IRule rl)
: base(id, rl)
{
}
public virtual void compile(ICondition condition, int position, Rule.IRule util, bool alphaMemory)
{
// TODO Auto-generated method stub
}
/// <summary>
/// Compiles the constraint.
/// </summary>
/// <param name="cnstr">The CNSTR.</param>
/// <param name="templ">The templ.</param>
/// <param name="rule">The rule.</param>
/// <param name="position">The position.</param>
/// <returns></returns>
public virtual BaseAlpha2 compileConstraint(PredicateConstraint cnstr, ITemplate templ, Rule.IRule rule, int position)
{
BaseAlpha2 current = null;
// for now we expect the user to write the predicate in this
// way (> ?bind value), where the binding is first. this
// needs to be updated so that we look at the order of the
// parameters and set the node appropriately
// we only create an AlphaNode if the predicate isn't
// joining 2 bindings.
if (!cnstr.PredicateJoin)
{
if (ConversionUtils.isPredicateOperatorCode(cnstr.FunctionName))
{
int oprCode = ConversionUtils.getOperatorCode(cnstr.FunctionName);
Slot sl = (Slot)templ.getSlot(cnstr.Name).Clone();
Object sval = ConversionUtils.convert(sl.ValueType, cnstr.Value);
sl.Value = sval;
// create the alphaNode
if (rule.RememberMatch)
{
current = new AlphaNode(engine.nextNodeId());
}
else
{
current = new NoMemANode(engine.nextNodeId());
}
current.Slot = sl;
current.Operator = oprCode;
current.incrementUseCount();
// we increment the node use count when when create a new
// AlphaNode for the LiteralConstraint
templ.getSlot(sl.Id).incrementNodeCount();
}
else
{
// the function isn't a built in predicate function that
// returns boolean true/false. We look up the function
IFunction f = engine.findFunction(cnstr.FunctionName);
if (f != null)
{
// we create the alphaNode if a function is found and
// the return type is either boolean primitive or object
if (f.ReturnType == Constants.BOOLEAN_PRIM_TYPE || f.ReturnType != Constants.BOOLEAN_OBJECT)
{
// TODO - need to implement it
}
else
{
// the function doesn't return boolean, so we have to notify
// the listeners the condition is not valid
CompileMessageEventArgs ce = new CompileMessageEventArgs(this, EventType.FUNCTION_INVALID);
ce.Message = INVALID_FUNCTION + " " + f.ReturnType; //$NON-NLS-1$
notifyListener(ce);
}
}
else
{
// we need to notify listeners the function wasn't found
CompileMessageEventArgs ce = new CompileMessageEventArgs(this, EventType.FUNCTION_NOT_FOUND);
ce.Message = FUNCTION_NOT_FOUND + " " + cnstr.FunctionName;
notifyListener(ce);
}
}
}
Binding bind = new Binding();
bind.VarName = cnstr.VariableName;
bind.LeftRow = position;
bind.LeftIndex = templ.getSlot(cnstr.Name).Id;
bind.RowDeclared = position;
// we only Add the binding to the map if it doesn't already exist
if (rule.getBinding(cnstr.VariableName) == null)
{
rule.addBinding(cnstr.VariableName, bind);
}
return(current);
}
/// <summary> Compile a single ObjectCondition and create the alphaNodes and/or Bindings
/// </summary>
public override void compile(ICondition condition, int position, Rule.IRule rule, bool alphaMemory)
{
TemporalCondition cond = (TemporalCondition)condition;
ObjectTypeNode otn = ruleCompiler.findObjectTypeNode(cond.TemplateName);
// we set remember match to false, since the rule is temporal
bool switchMatch = false;
if (rule.RememberMatch)
{
rule.RememberMatch = false;
switchMatch = true;
}
if (otn != null)
{
BaseAlpha2 first = null;
BaseAlpha2 previous = null;
BaseAlpha2 current = null;
ITemplate templ = cond.Deftemplate;
IConstraint[] constrs = cond.Constraints;
for (int idx = 0; idx < constrs.Length; idx++)
{
IConstraint cnstr = constrs[idx];
if (cnstr is LiteralConstraint)
{
current = ruleCompiler.compileConstraint((LiteralConstraint)cnstr, templ, rule);
}
else if (cnstr is AndLiteralConstraint)
{
current = ruleCompiler.compileConstraint((AndLiteralConstraint)cnstr, templ, rule);
}
else if (cnstr is OrLiteralConstraint)
{
current = ruleCompiler.compileConstraint((OrLiteralConstraint)cnstr, templ, rule);
}
else if (cnstr is BoundConstraint)
{
ruleCompiler.compileConstraint((BoundConstraint)cnstr, templ, rule, position);
}
else if (cnstr is PredicateConstraint)
{
current = ruleCompiler.compileConstraint((PredicateConstraint)cnstr, templ, rule, position);
}
// we Add the node to the previous
if (first == null)
{
first = current;
previous = current;
}
else if (current != previous)
{
try
{
previous.addSuccessorNode(current, ruleCompiler.Engine, ruleCompiler.Memory);
// now set the previous to current
previous = current;
}
catch (AssertException e)
{
// send an event
}
}
}
if (first != null)
{
attachAlphaNode(otn, first, cond);
}
}
if (!cond.Negated)
{
position++;
}
if (switchMatch)
{
rule.RememberMatch = true;
}
}
public virtual void compileFirstJoin(ICondition condition, Rule.IRule rule)
{
// TODO Auto-generated method stub
}
public virtual void compileSingleCE(Rule.IRule rule)
{
// TODO Auto-generated method stub
}
public abstract void compile(ICondition condition, int position, Rule.IRule util, bool alphaMemory);
public abstract void compileFirstJoin(ICondition condition, Rule.IRule rule);
public abstract BaseJoin compileJoin(ICondition condition, int position, Rule.IRule rule);
/// <summary>
/// Initializes a new instance of the <see cref="TerminalNode"/> class.
/// </summary>
/// <param name="id">The id.</param>
/// <param name="rl">The rl.</param>
public TerminalNode(int id, Rule.IRule rl)
: base(id)
{
theRule = rl;
}
/// <param name="">id
///
/// </param>
public TerminalNode3(int id, Rule.IRule rl) : base(id, rl)
{
theRule = rl;
}
/// <summary> the paramList should be clean and
/// other codes surrounding this method in subclass may be removed into this method.
/// Houzhanbin 10/16/2007
/// </summary>
/// <param name="">condition
/// </param>
/// <param name="">rule
/// </param>
/// <param name="">Constraints
/// </param>
/// <param name="">position
/// </param>
/// <param name="">hasNotEqual
/// </param>
/// <param name="">hasPredicateJoin
/// </param>
/// <returns>
///
/// </returns>
internal Binding[] getBindings(ICondition condition, Rule.IRule rule, int position)
{
ObjectCondition oc = getObjectCondition(condition);
IList Constraints = oc.BindConstraints;
Deftemplate tmpl = oc.Deftemplate;
Binding[] binds = new Binding[Constraints.Count];
for (int idz = 0; idz < Constraints.Count; idz++)
{
Object cst = Constraints[idz];
if (cst is BoundConstraint)
{
BoundConstraint bc = (BoundConstraint)cst;
Binding cpy = rule.copyBinding(bc.VariableName);
if (cpy.LeftRow >= position)
{
binds = new Binding[0];
break;
}
else
{
binds[idz] = cpy;
int rinx = tmpl.getColumnIndex(bc.Name);
// we increment the count to make sure the
// template isn't removed if it is being used
tmpl.incrementColumnUseCount(bc.Name);
binds[idz].RightIndex = rinx;
binds[idz].Negated = bc.Negated;
if (bc.Negated)
{
oc.HasNotEqual = true;
}
}
}
else if (cst is PredicateConstraint)
{
PredicateConstraint pc = (PredicateConstraint)cst;
if (pc.Value is BoundParam)
{
oc.HasPredicateJoin = true;
BoundParam bpm = (BoundParam)pc.Value;
String var = bpm.VariableName;
int op = ConversionUtils.getOperatorCode(pc.FunctionName);
// check and make sure the function isn't user defined
if (op != Constants.USERDEFINED)
{
// if the first binding in the function is from the object type
// we reverse the operator
if (pc.Parameters[0] != bpm)
{
op = ConversionUtils.getOppositeOperatorCode(op);
}
binds[idz] = rule.copyPredicateBinding(var, op);
((Binding2)binds[idz]).RightVariable = pc.VariableName;
}
else
{
binds[idz] = rule.copyPredicateBinding(var, op);
}
binds[idz].PredJoin = true;
int rinx = tmpl.getColumnIndex(pc.Name);
// we increment the count to make sure the
// template isn't removed if it is being used
tmpl.incrementColumnUseCount(pc.Name);
binds[idz].RightIndex = rinx;
}
else if (pc.Value is FunctionParam)
{
// this means there is a nested function
}
}
}
return(binds);
}