public override Node VisitQueryProject(QueryProject project)
{
project.Source = this.VisitExpression(project.Source);
Composer save = this.contextComposer;
Composer c = this.contextComposer = this.GetComposer(project.Source);
bool savehcr = this.hasContextReference;
this.hasContextReference = false;
this.VisitExpressionList(project.ProjectionList);
this.hasContextReference = savehcr;
this.contextComposer = save;
return(this.Compose(project, c));
}
private static void OperParaProName(int existCount, ParaEntity para, DependencyObject sub, IMetadataContainer mc, IQueryProjectContainer srv) {
string name = para.Name;
string extendFix = string.Empty;
if (existCount > 0) {
extendFix = "X" + (existCount + 1); //后续以X+流水
name = name + extendFix;
}
int index = name.IndexOf(".");
if (index > -1) {
para.PropertyName = name.Replace('.', '_'); //带上表明前缀 以防止有相同的属性名参数但是表明不一样（a.Status,b.Status），导致后续跟进参数注册属性会报错，不能注册相同的参数
} else { //可能存在查询单一表情况，不带别名的
para.PropertyName = name;
}
para.SecondPropertyName = para.PropertyName + "2";
if (para.ControlType == ControlTypeEnum.PickList) {
para.PickListTypeName = sub["CONTROL_CODE"].ToStringExtension();
if (para.PickListTypeName != string.Empty) {
var pick = mc.GetPickListTypeElement(para.PickListTypeName);
if (pick != null) {
//para.Tip = pick.DisplayName; //20170829 mark by shenbao for P001-170829002
LocalizableString localStr = new LocalizableString(pick.DisplayName); //20170829 add by shenbao for P001-170829002
para.Tip = localStr[System.Globalization.CultureInfo.CurrentUICulture.ThreeLetterWindowsLanguageName]; //20170829 add by shenbao for P001-170829002
}
}
} else if (para.ControlType == ControlTypeEnum.SelectControl) {
para.QueryProjectId = sub["CONTROL_CODE"].ToStringExtension();
QueryProject qp = srv.QueryProjects.FirstOrDefault(c => c.Id == para.QueryProjectId) as QueryProject;
string idColumn = string.Empty;
if (qp != null) {
idColumn = qp.ContextDataColumn;
para.Tip = qp.DisplayName;
} else {
idColumn = "KEY_FIELD_ID"; //理论上永远不会走到这里，除非FINCTION_INFO没有配置开窗编号，或者这个编号是错误的
}
para.TargetEntityPirmaryKeyID = idColumn;
if (index >= 0) {
para.PropertyName = name.Substring(0, index) + "_" + idColumn + extendFix; //如果是开窗类型，则需要重新设置PropertyName，为ID字段
} else {
para.PropertyName = idColumn + extendFix;
}
para.SecondPropertyName = para.PropertyName + "2";
}
}
public virtual Node VisitQueryProject(QueryProject project, QueryProject changes, QueryProject deletions, QueryProject insertions){
this.UpdateSourceContext(project, changes);
if (project == null) return changes;
if (changes != null){
if (deletions == null || insertions == null)
Debug.Assert(false);
else{
}
}else if (deletions != null)
return null;
return project;
}
public virtual Differences VisitQueryProject(QueryProject project1, QueryProject project2){
Differences differences = new Differences(project1, project2);
if (project1 == null || project2 == null){
if (project1 != project2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
return differences;
}
QueryProject changes = (QueryProject)project2.Clone();
QueryProject deletions = (QueryProject)project2.Clone();
QueryProject insertions = (QueryProject)project2.Clone();
// project1.Context;
// project1.Members;
// project1.ProjectedType;
// project1.ProjectionList;
if (differences.NumberOfDifferences == 0){
differences.Changes = null;
differences.Deletions = null;
differences.Insertions = null;
}else{
differences.Changes = changes;
differences.Deletions = deletions;
differences.Insertions = insertions;
}
return differences;
}
public virtual Node VisitQueryProject(QueryProject project){
if (project == null) return null;
project.Source = this.VisitExpression(project.Source);
project.ProjectionList = this.VisitExpressionList(project.ProjectionList);
return project;
}
public override Node VisitQueryProject(QueryProject qp) {
if (qp == null) return null;
Class cc = this.currentMethod.Scope.ClosureClass;
qp.Source = this.VisitExpression(qp.Source);
if (qp.Source == null || qp.Source.Type == null) return null;
Cardinality card = this.typeSystem.GetCardinality(qp.Source, this.TypeViewer);
if (card != Cardinality.OneOrMore && card != Cardinality.ZeroOrMore) {
this.HandleError(qp.Source, Error.QueryNotStream);
return null;
}
if (qp.ProjectionList == null || qp.ProjectionList.Count == 0) {
this.HandleError(qp.Source, Error.QueryBadProjectionList);
}
for (int i = 0, n = qp.ProjectionList.Count; i < n; i++) {
Expression x = this.VisitExpression(qp.ProjectionList[i]);
if (x == null || x.Type == null) return null;
qp.ProjectionList[i] = x;
}
if (qp.Type == null || qp.ProjectedType == null) return null;
return qp;
}
public override Node VisitQueryProject(QueryProject project){
if (project == null) return null;
project.Source = this.VisitExpression(project.Source);
if (project.Source == null || project.Source.Type == null) return project;
TypeNode sourceElementType = this.typeSystem.GetStreamElementType(project.Source, this.TypeViewer);
project.Context = this.contextScope = new ContextScope(this.contextScope, sourceElementType);
ExpressionList list = new ExpressionList();
for (int i=0; i < project.ProjectionList.Count; i++){
QueryAxis axis = project.ProjectionList[i] as QueryAxis;
if (axis != null && axis.Name == Identifier.Empty){
axis.Source = this.VisitExpression(axis.Source);
this.ResolveAxis(axis);
this.GetProjectionList(axis.AccessPlan, axis.Source, list);
}
else{
list.Add(this.VisitExpression(project.ProjectionList[i]));
}
}
project.ProjectionList = list;
this.contextScope = this.contextScope.Previous;
if (project.ProjectedType == null){
int len = project.ProjectionList.Count;
if (len == 1 && this.GetExpressionName(project.ProjectionList[0]) == null){
Expression x = project.ProjectionList[0];
if (x != null && x.Type != null)
project.ProjectedType = x.Type;
}
else{
FieldList fields = new FieldList();
for( int i = 0, cn = 0; i < len; i++ ){
Expression x = project.ProjectionList[i];
if (x != null && x.Type != null){
Identifier name = this.GetExpressionName(x);
Field f = new Field(null, new AttributeList(1), FieldFlags.Public, name, x.Type, null);
if (name == null || name == Identifier.Empty){
f.Name = Identifier.For("Item"+cn); cn++;
f.Attributes.Add(new AttributeNode(new MemberBinding(null, SystemTypes.AnonymousAttribute.GetConstructor()), null));
}
fields.Add(f);
}
}
if (fields.Count == len){
project.ProjectedType = TupleType.For(fields, this.currentType);
project.Members = this.typeSystem.GetDataMembers(project.ProjectedType);
}
}
}
if (project.ProjectedType != null){
project.Type = this.GetResultType(project.Source, project.ProjectedType, Cardinality.One);
}
return project;
}
public virtual void VisitQueryProject(QueryProject project){
if (project == null) return;
this.VisitExpression(project.Source);
this.VisitExpressionList(project.ProjectionList);
}
public override Node VisitQueryProject(QueryProject project){
if (project == null) return null;
return base.VisitQueryProject((QueryProject)project.Clone());
}
public virtual Node VisitQueryProject(QueryProject project1, QueryProject project2){
if (project1 == null) return null;
if (project2 == null){
project1.Source = this.VisitExpression(project1.Source, null);
project1.ProjectionList = this.VisitExpressionList(project1.ProjectionList, null);
}else{
project1.Source = this.VisitExpression(project1.Source, project2.Source);
project1.ProjectionList = this.VisitExpressionList(project1.ProjectionList, project2.ProjectionList);
}
return project1;
}
public override Node VisitQueryProject(QueryProject qp) {
// generate translation code
Block block = null;
Node closure = this.StartQueryClosure(qp.ProjectedType, "select", out block);
BlockScope scope = block.Scope;
Expression feTarget = null;
Block feBody = null;
block.Statements.Add(this.BuildClosureForEach(qp.Source, ref feTarget, out feBody, scope));
Block inner = new Block(new StatementList(qp.ProjectionList.Count + 1));
feBody.Statements.Add(this.IfNotNull(feTarget, inner));
Expression projectedTarget = this.NewClosureLocal(qp.ProjectedType, scope);
qp.Context.Target = feTarget;
if( qp.ProjectionList.Count == 1 && projectedTarget.Type.UniqueKey == qp.ProjectionList[0].Type.UniqueKey ) {
// case of scalar projection
Expression x = qp.ProjectionList[0];
inner.Statements.Add(new AssignmentStatement(projectedTarget, x));
}
else if( qp.ProjectionList.Count > 0 ) {
// create projected instance
if (!qp.ProjectedType.IsValueType) {
Construct cons = new Construct();
cons.Constructor = new MemberBinding(null, this.GetTypeView(qp.ProjectedType).GetConstructor());
cons.Type = qp.ProjectedType;
inner.Statements.Add(new AssignmentStatement(projectedTarget, cons));
}
// non-scalar projection
Debug.Assert( qp.Members != null && qp.Members.Count == qp.ProjectionList.Count, "Projection length mismatch" );
for( int i = 0, n = qp.Members.Count; i < n; i++ ) {
Member m = qp.Members[i];
TypeNode mtype = this.typeSystem.GetMemberType(m);
MemberBinding mb = new MemberBinding(projectedTarget, m); mb.Type = mtype;
Expression x = qp.ProjectionList[i];
inner.Statements.Add(new AssignmentStatement(mb, this.typeSystem.ImplicitCoercion(x, mtype, this.TypeViewer)));
}
}
inner.Statements.Add(new Yield(projectedTarget));
// normalize
return this.EndQueryClosure(closure, qp.Type);
}
public override Node VisitQueryProject( QueryProject qp ){
if (qp == null) return null;
qp.Source = this.VisitExpression(qp.Source);
QueryGroupBy save = this.currentGroup;
this.currentGroup = this.GetGroupBySource(qp.Source);
if (this.currentGroup == null){
this.currentGroup = new QueryGroupBy();
}
this.VisitExpressionList(qp.ProjectionList);
if (this.currentGroup.Source == null && this.currentGroup.AggregateList.Count > 0){
qp.Source = this.InjectGroupBy(qp.Source, this.currentGroup);
}
this.currentGroup = save;
if (qp.ProjectedType != null){
qp.ProjectedType = this.VisitTypeReference(qp.ProjectedType);
}
return qp;
}
public override Node VisitQueryProject(QueryProject project) {
project.Source = this.VisitExpression(project.Source);
Composer save = this.contextComposer;
Composer c = this.contextComposer = this.GetComposer(project.Source);
bool savehcr = this.hasContextReference;
this.hasContextReference = false;
this.VisitExpressionList(project.ProjectionList);
this.hasContextReference = savehcr;
this.contextComposer = save;
return this.Compose(project, c);
}
public EventingVisitor(Action<QueryProject> visitQueryProject) { VisitedQueryProject += visitQueryProject; } public event Action<QueryProject> VisitedQueryProject; public override Node VisitQueryProject(QueryProject project) { if (VisitedQueryProject != null) VisitedQueryProject(project); return base.VisitQueryProject(project); }