/// <summary>
/// build a XPTree Node for a data object entry name
/// </summary>
/// <param name="ctx"></param>
/// <returns></returns>
public bool BuildXPTNode(DataObjectEntryNameContext ctx)
{
string aClassName = String.Empty;
/// build the entry name
if (ctx.dataObjectClass() == null) aClassName = GetDefaultClassName (ctx);
else aClassName = ctx.dataObjectClass().ClassName ;
// full entry name
ctx.entryname = aClassName + "." + ctx.identifier().GetText();
ctx.ClassName = aClassName;
// get the symbol from the engine
DataObjectEntrySymbol aSymbol = new DataObjectEntrySymbol(ctx.entryname, engine: this.Engine);
ctx.XPTreeNode = aSymbol;
if (aSymbol != null) return true;
return false;
}
/// <summary>
/// build a XPT Node out of a selection condition
/// </summary>
/// <param name="ctx"></param>
/// <returns></returns>
public bool BuildXPTNode(SelectConditionContext ctx)
{
string entryName;
//| RPAREN selectConditions [$ClassName, $keypos] LPAREN
if (ctx.selectConditions() != null)
{
if (ctx.NOT()==null) ctx.XPTreeNode = ctx.selectConditions().XPTreeNode;
else ctx.XPTreeNode = LogicalExpression.NOT((IExpression)ctx.selectConditions().XPTreeNode);
// set the max priority for disabling reshuffle
((OperationExpression)ctx.XPTreeNode).Priority = uint.MaxValue;
return true;
}
else
{
// determine the key name with the key is not provided by the key position
//
if (ctx.dataObjectEntry == null)
{
string aClassName = GetDefaultClassName(ctx);
if (this.Engine.Repository.HasDataObjectDefinition(aClassName))
{
iObjectDefinition aObjectDefinition = this.Engine.GetDataObjectDefinition(aClassName);
if (ctx.keypos <= aObjectDefinition.Keys.Count())
entryName = aClassName + "." + aObjectDefinition.Keys[ctx.keypos - 1];
else
{
this.NotifyErrorListeners(String.Format(Messages.RCM_8, aClassName, aObjectDefinition.Keys.Count(), ctx.keypos));
return false;
}
}else
{
this.NotifyErrorListeners(String.Format(Messages.RCM_9, aClassName));
return false;
}
}
else entryName = ctx.dataObjectEntry.entryname;
// get the symbol
DataObjectEntrySymbol aSymbol = new DataObjectEntrySymbol(entryName, engine: this.Engine);
// Operator
Operator anOperator;
// default operator is the EQ operator
if (ctx.Operator == null) anOperator = Engine.GetOperator(new Token(Token.EQ));
else anOperator = ctx.Operator.Operator;
// build the comparer expression
CompareExpression aCompare = null;
if (aSymbol != null && ctx.select.XPTreeNode != null) aCompare = new CompareExpression(anOperator, aSymbol, (IExpression)ctx.select.XPTreeNode);
else return false;
// set it
ctx.XPTreeNode = aCompare;
return true;
}
return false;
}
