internal override bool BuildWhere(ExtentStatement statement, string alias)
{
var schema = statement.Mapping;
if ((this.role.IsMany && this.role.RelationType.AssociationType.IsMany) || !this.role.RelationType.ExistExclusiveClasses)
{
statement.Append("\n");
statement.Append("EXISTS(\n");
statement.Append("SELECT " + alias + "." + Mapping.ColumnNameForObject + "\n");
statement.Append("FROM " + schema.TableNameForRelationByRelationType[this.role.RelationType] + "\n");
statement.Append("WHERE " + Mapping.ColumnNameForAssociation + "=" + alias + "." + Mapping.ColumnNameForObject + "\n");
statement.Append("AND " + Mapping.ColumnNameForRole + "=" + this.allorsObject.Strategy.ObjectId + "\n");
statement.Append(")\n");
}
else
{
// This join is not possible because of the 3VL (Three Valued Logic).
// It should work for normal queries, but it fails when wrapped in a NOT( ... ) predicate.
// The rows with NULL values should then return TRUE and not UNKNOWN.
//
// statement.sql.Append(" " + role.SingularFullName + "_R." + schema.O + " = " + allorsObject.ObjectId);
statement.Append("\n");
statement.Append("EXISTS(\n");
statement.Append("SELECT " + Mapping.ColumnNameForObject + "\n");
statement.Append("FROM " + schema.TableNameForObjectByClass[((IComposite)this.role.ObjectType).ExclusiveClass] + "\n");
statement.Append("WHERE " + Mapping.ColumnNameForObject + "=" + this.allorsObject.Strategy.ObjectId + "\n");
statement.Append("AND " + schema.ColumnNameByRelationType[this.role.RelationType] + "=" + alias + ".O\n");
statement.Append(")\n");
}
return(this.Include);
}
internal override bool BuildWhere(ExtentStatement statement, string alias)
{
var schema = statement.Mapping;
var inStatement = statement.CreateChild(this.inExtent, this.association);
inStatement.UseRole(this.association.RoleType);
if ((this.association.IsMany && this.association.RoleType.IsMany) || !this.association.RelationType.ExistExclusiveClasses)
{
statement.Append(" (" + this.association.SingularFullName + "_A." + Mapping.ColumnNameForRole + " IS NULL OR");
statement.Append(" NOT " + this.association.SingularFullName + "_A." + Mapping.ColumnNameForRole + " IN (\n");
statement.Append(" SELECT " + Mapping.ColumnNameForRole + " FROM " + schema.TableNameForRelationByRelationType[this.association.RelationType] + " WHERE " + Mapping.ColumnNameForAssociation + " IN (");
this.inExtent.BuildSql(inStatement);
statement.Append(" )))\n");
}
else
{
if (this.association.RoleType.IsMany)
{
statement.Append(" (" + alias + "." + schema.ColumnNameByRelationType[this.association.RelationType] + " IS NULL OR ");
statement.Append(" NOT " + alias + "." + schema.ColumnNameByRelationType[this.association.RelationType] + " IN (\n");
this.inExtent.BuildSql(inStatement);
statement.Append(" ))\n");
}
else
{
statement.Append(" (" + this.association.SingularFullName + "_A." + Mapping.ColumnNameForObject + " IS NULL OR ");
statement.Append(" NOT " + this.association.SingularFullName + "_A." + Mapping.ColumnNameForObject + " IN (\n");
this.inExtent.BuildSql(inStatement);
statement.Append(" ))\n");
}
}
return(this.Include);
}
internal override bool BuildWhere(ExtentStatement statement, string alias)
{
var schema = statement.Mapping;
statement.Append(" " + alias + "." + schema.ColumnNameByRelationType[this.role.RelationType] + " < " + alias + "." + schema.ColumnNameByRelationType[this.lessThanRole.RelationType]);
return(this.Include);
}
private void AddDescendingAppendix(ExtentStatement statement)
{
var sortAppendix = this.session.Database.DescendingSortAppendix;
if (sortAppendix != null)
{
statement.Append(sortAppendix + " ");
}
}
internal override string BuildSql(ExtentStatement statement)
{
this.LazyLoadFilter();
this.filter.Setup(statement);
if (this.objectType.ExistClass)
{
if (this.objectType.ExistExclusiveClass)
{
return(this.BuildSqlWithExclusiveClass(statement));
}
return(this.BuildSqlWithClasses(statement));
}
return(null);
}
internal override bool BuildWhere(ExtentStatement statement, string alias)
{
var schema = statement.Mapping;
if (this.role.ObjectType.IsUnit && this.equalsRole.ObjectType.IsUnit)
{
statement.Append(" " + alias + "." + schema.ColumnNameByRelationType[this.role.RelationType] + "=" + alias + "." + schema.ColumnNameByRelationType[this.equalsRole.RelationType]);
}
else if (((IComposite)this.role.ObjectType).ExistExclusiveClass && ((IComposite)this.equalsRole.ObjectType).ExistExclusiveClass)
{
statement.Append(" " + alias + "." + schema.ColumnNameByRelationType[this.role.RelationType] + "=" + alias + "." + schema.ColumnNameByRelationType[this.equalsRole.RelationType]);
}
else
{
throw new NotImplementedException();
}
return(this.Include);
}
internal void BuildOrder(ExtentStatement statement, string alias)
{
statement.Append(
statement.Sorter.Equals(this)
? $" ORDER BY {alias}.{statement.Mapping.ColumnNameByRelationType[this.roleType.RelationType]}"
: $" , {alias}.{statement.Mapping.ColumnNameByRelationType[this.roleType.RelationType]}");
if (this.direction == SortDirection.Ascending)
{
statement.Append(" ASC NULLS FIRST ");
this.AddAscendingAppendix(statement);
}
else
{
statement.Append(" DESC NULLS LAST ");
this.AddDescendingAppendix(statement);
}
this.subSorter?.BuildOrder(statement, alias);
}
internal override bool BuildWhere(ExtentStatement statement, string alias)
{
var schema = statement.Mapping;
if ((this.association.IsMany && this.association.RoleType.IsMany) || !this.association.RelationType.ExistExclusiveClasses)
{
statement.Append("\n");
statement.Append("EXISTS(\n");
statement.Append("SELECT " + alias + "." + Mapping.ColumnNameForObject + "\n");
statement.Append("FROM " + schema.TableNameForRelationByRelationType[this.association.RelationType] + "\n");
statement.Append("WHERE " + Mapping.ColumnNameForAssociation + "=" + this.allorsObject.Strategy.ObjectId + "\n");
statement.Append("AND " + Mapping.ColumnNameForRole + "=" + alias + "." + Mapping.ColumnNameForObject + "\n");
statement.Append(")");
}
else
{
statement.Append(" " + this.association.SingularFullName + "_A." + Mapping.ColumnNameForObject + " = " + this.allorsObject.Strategy.ObjectId);
}
return(this.Include);
}
internal override bool BuildWhere(ExtentStatement statement, string alias)
{
var schema = statement.Mapping;
var inStatement = new StringBuilder("0");
foreach (var inObject in this.enumerable)
{
inStatement.Append(",");
inStatement.Append(inObject.Id);
}
if ((this.role.IsMany && this.role.RelationType.AssociationType.IsMany) || !this.role.RelationType.ExistExclusiveClasses)
{
// TODO: in combination with NOT gives error
statement.Append(" (" + this.role.SingularFullName + "_R." + Mapping.ColumnNameForRole + " IS NOT NULL AND ");
statement.Append(" " + this.role.SingularFullName + "_R." + Mapping.ColumnNameForRole + " IN (");
statement.Append(inStatement.ToString());
statement.Append(" ))");
}
else
{
if (this.role.IsMany)
{
statement.Append(" (" + this.role.SingularFullName + "_R." + Mapping.ColumnNameForObject + " IS NOT NULL AND ");
statement.Append(" " + this.role.SingularFullName + "_R." + Mapping.ColumnNameForObject + " IN (");
statement.Append(inStatement.ToString());
statement.Append(" ))");
}
else
{
statement.Append(" (" + schema.ColumnNameByRelationType[this.role.RelationType] + " IS NOT NULL AND ");
statement.Append(" " + schema.ColumnNameByRelationType[this.role.RelationType] + " IN (");
statement.Append(inStatement.ToString());
statement.Append(" ))");
}
}
return(this.Include);
}
internal override bool BuildWhere(ExtentStatement statement, string alias)
{
var schema = statement.Mapping;
var inStatement = new StringBuilder("0");
foreach (var inObject in this.enumerable)
{
inStatement.Append(",");
inStatement.Append(inObject.Id.ToString());
}
if ((this.association.IsMany && this.association.RelationType.RoleType.IsMany) || !this.association.RelationType.ExistExclusiveClasses)
{
statement.Append(" (" + this.association.SingularFullName + "_A." + Mapping.ColumnNameForRole + " IS NULL OR ");
statement.Append(" NOT " + this.association.SingularFullName + "_A." + Mapping.ColumnNameForRole + " IN (\n");
statement.Append(" SELECT " + Mapping.ColumnNameForRole + " FROM " + schema.TableNameForRelationByRelationType[this.association.RelationType] + " WHERE " + Mapping.ColumnNameForAssociation + " IN (");
statement.Append(inStatement.ToString());
statement.Append(" ))\n");
}
else
{
if (this.association.RelationType.RoleType.IsMany)
{
statement.Append(" (" + alias + "." + schema.ColumnNameByRelationType[this.association.RelationType] + " IS NULL OR ");
statement.Append(" NOT " + alias + "." + schema.ColumnNameByRelationType[this.association.RelationType] + " IN (\n");
statement.Append(inStatement.ToString());
statement.Append(" ))\n");
}
else
{
statement.Append(" (" + this.association.SingularFullName + "_A." + Mapping.ColumnNameForObject + " IS NULL OR ");
statement.Append(" NOT " + this.association.SingularFullName + "_A." + Mapping.ColumnNameForObject + " IN (\n");
statement.Append(inStatement.ToString());
statement.Append(" ))\n");
}
}
return(this.Include);
}
internal override bool BuildWhere(ExtentStatement statement, string alias)
{
var schema = statement.Mapping;
if ((this.association.IsMany && this.association.RelationType.RoleType.IsMany) || !this.association.RelationType.ExistExclusiveClasses)
{
statement.Append(" " + this.association.SingularFullName + "_A." + Mapping.ColumnNameForAssociation + " IS NOT NULL");
}
else
{
if (this.association.RelationType.RoleType.IsMany)
{
statement.Append(" " + alias + "." + schema.ColumnNameByRelationType[this.association.RelationType] + " IS NOT NULL");
}
else
{
statement.Append(" " + this.association.SingularFullName + "_A." + Mapping.ColumnNameForObject + " IS NOT NULL");
}
}
return(this.Include);
}
internal override bool BuildWhere(ExtentStatement statement, string alias)
{
var schema = statement.Mapping;
if (this.instanceClasses.Length == 1)
{
statement.Append(alias + "." + Mapping.ColumnNameForClass + "=" + statement.AddParameter(this.instanceClasses[0].Id) + " ");
}
else if (this.instanceClasses.Length > 1)
{
statement.Append(" ( ");
for (var i = 0; i < this.instanceClasses.Length; i++)
{
statement.Append(alias + "." + Mapping.ColumnNameForClass + "=" + statement.AddParameter(this.instanceClasses[i].Id));
if (i < this.instanceClasses.Length - 1)
{
statement.Append(" OR ");
}
}
statement.Append(" ) ");
}
return this.Include;
}
internal override void Setup(ExtentStatement statement)
{
statement.UseRole(this.role);
statement.UseRole(this.first);
statement.UseRole(this.second);
}
internal override void Setup(ExtentStatement statement) => statement.UseRole(this.role);
internal override void Setup(ExtentStatement statement)
{
statement.UseAssociation(this.association);
statement.UseAssociationInstance(this.association);
}
internal override void Setup(ExtentStatement statement) => statement.UseAssociation(this.association);
internal override void Setup(ExtentStatement statement)
{
statement.UseRole(this.role);
statement.UseRole(this.greaterThanRole);
}
internal override void Setup(ExtentStatement statement)
{
statement.UseRole(this.role);
statement.UseRole(this.equalsRole);
}
private string BuildSqlWithExclusiveClass(ExtentStatement statement)
{
var alias = statement.CreateAlias();
var rootClass = this.objectType.ExclusiveClass;
if (statement.IsRoot)
{
statement.Append("SELECT DISTINCT " + alias + "." + Mapping.ColumnNameForObject);
statement.Sorter?.BuildSelect(statement, alias);
statement.Append(" FROM " + this.Mapping.TableNameForObjectByClass[rootClass] + " " + alias);
statement.AddJoins(rootClass, alias);
statement.AddWhere(rootClass, alias);
this.filter?.BuildWhere(statement, alias);
}
else
{
// ContainedIn
var inStatement = (ExtentStatementChild)statement;
if (inStatement.RoleType != null)
{
var inRole = inStatement.RoleType;
var inIRelationType = inRole.RelationType;
if (inIRelationType.Multiplicity == Multiplicity.ManyToMany || !inIRelationType.ExistExclusiveClasses)
{
statement.Append("SELECT " + inRole.AssociationType.SingularFullName + "_A." + Mapping.ColumnNameForAssociation);
}
else
{
if (inRole.IsMany)
{
statement.Append("SELECT " + alias + "." + Mapping.ColumnNameForObject);
}
else
{
statement.Append("SELECT " + inRole.AssociationType.SingularFullName + "_A." + this.Mapping.ColumnNameByRelationType[inRole.RelationType]);
}
}
statement.Append(" FROM " + this.Mapping.TableNameForObjectByClass[rootClass] + " " + alias);
statement.AddJoins(rootClass, alias);
var wherePresent = statement.AddWhere(rootClass, alias);
var filterUsed = false;
if (this.filter != null)
{
filterUsed = this.filter.BuildWhere(statement, alias);
}
if (wherePresent || filterUsed)
{
statement.Append(" AND ");
}
else
{
statement.Append(" WHERE ");
}
if (inIRelationType.Multiplicity == Multiplicity.ManyToMany || !inIRelationType.ExistExclusiveClasses)
{
statement.Append(inRole.AssociationType.SingularFullName + "_A." + Mapping.ColumnNameForAssociation + " IS NOT NULL ");
}
else
{
if (inRole.IsMany)
{
statement.Append(alias + "." + this.Mapping.ColumnNameByRelationType[inRole.RelationType] + " IS NOT NULL ");
}
else
{
statement.Append(inRole.AssociationType.SingularFullName + "_A." + this.Mapping.ColumnNameByRelationType[inRole.RelationType] + " IS NOT NULL ");
}
}
}
else
{
if (statement.IsRoot)
{
statement.Append("SELECT " + alias + "." + Mapping.ColumnNameForObject);
if (statement.Sorter != null)
{
statement.Sorter.BuildSelect(statement);
}
}
else
{
statement.Append("SELECT " + alias + "." + Mapping.ColumnNameForObject);
}
statement.Append(" FROM " + this.Mapping.TableNameForObjectByClass[rootClass] + " " + alias);
statement.AddJoins(rootClass, alias);
statement.AddWhere(rootClass, alias);
if (this.filter != null)
{
this.filter.BuildWhere(statement, alias);
}
}
}
return(alias);
}
internal override void Setup(ExtentStatement statement)
{
}
internal abstract string BuildSql(ExtentStatement statement);
private string BuildSqlWithClasses(ExtentStatement statement)
{
if (statement.IsRoot)
{
for (var i = 0; i < this.objectType.Classes.Count(); i++)
{
var alias = statement.CreateAlias();
var rootClass = this.objectType.Classes.ToArray()[i];
statement.Append("SELECT " + alias + "." + Mapping.ColumnNameForObject);
if (statement.Sorter != null)
{
statement.Sorter.BuildSelect(statement);
}
statement.Append(" FROM " + this.Mapping.TableNameForObjectByClass[rootClass] + " " + alias);
statement.AddJoins(rootClass, alias);
statement.AddWhere(rootClass, alias);
if (this.filter != null)
{
this.filter.BuildWhere(statement, alias);
}
if (i < this.objectType.Classes.Count() - 1)
{
statement.Append("\nUNION\n");
}
}
}
else
{
var inStatement = (ExtentStatementChild)statement;
if (inStatement.RoleType != null)
{
var useUnion = false;
foreach (var rootClass in this.objectType.Classes)
{
var inRole = inStatement.RoleType;
var inIRelationType = inRole.RelationType;
if (!((IComposite)inRole.ObjectType).Classes.Contains(rootClass))
{
continue;
}
if (useUnion)
{
statement.Append("\nUNION\n");
}
else
{
useUnion = true;
}
var alias = statement.CreateAlias();
if (inIRelationType.Multiplicity == Multiplicity.ManyToMany || !inIRelationType.ExistExclusiveClasses)
{
statement.Append("SELECT " + inRole.AssociationType.SingularFullName + "_A." + Mapping.ColumnNameForAssociation);
}
else
{
if (inRole.IsMany)
{
statement.Append("SELECT " + alias + "." + Mapping.ColumnNameForObject);
}
else
{
statement.Append("SELECT " + inRole.AssociationType.SingularFullName + "_A." + this.Mapping.ColumnNameByRelationType[inRole.RelationType]);
}
}
statement.Append(" FROM " + this.Mapping.TableNameForObjectByClass[rootClass] + " " + alias);
statement.AddJoins(rootClass, alias);
var wherePresent = statement.AddWhere(rootClass, alias);
var filterUsed = false;
if (this.filter != null)
{
filterUsed = this.filter.BuildWhere(statement, alias);
}
if (wherePresent || filterUsed)
{
statement.Append(" AND ");
}
else
{
statement.Append(" WHERE ");
}
if (inIRelationType.Multiplicity == Multiplicity.ManyToMany || !inIRelationType.ExistExclusiveClasses)
{
statement.Append(inRole.AssociationType.SingularFullName + "_A." + Mapping.ColumnNameForAssociation + " IS NOT NULL ");
}
else
{
if (inRole.IsMany)
{
statement.Append(alias + "." + this.Mapping.ColumnNameByRelationType[inRole.RelationType] + " IS NOT NULL ");
}
else
{
statement.Append(inRole.AssociationType.SingularFullName + "_A." + this.Mapping.ColumnNameByRelationType[inRole.RelationType] + " IS NOT NULL ");
}
}
}
}
else
{
for (var i = 0; i < this.objectType.Classes.Count(); i++)
{
var alias = statement.CreateAlias();
var rootClass = this.objectType.Classes.ToArray()[i];
if (statement.IsRoot)
{
statement.Append("SELECT " + alias + "." + Mapping.ColumnNameForObject);
if (statement.Sorter != null)
{
statement.Sorter.BuildSelect(statement);
}
}
else
{
statement.Append("SELECT " + alias + "." + Mapping.ColumnNameForObject);
}
statement.Append(" FROM " + this.Mapping.TableNameForObjectByClass[rootClass] + " " + alias);
statement.AddJoins(rootClass, alias);
statement.AddWhere(rootClass, alias);
if (this.filter != null)
{
this.filter.BuildWhere(statement, alias);
}
if (i < this.objectType.Classes.Count() - 1)
{
statement.Append("\nUNION\n");
}
}
}
}
return(null);
}
internal void BuildSelect(ExtentStatement statement, string alias)
{
statement.Append($" , {alias}.{statement.Mapping.ColumnNameByRelationType[this.roleType.RelationType]} ");
this.subSorter?.BuildSelect(statement, alias);
}
internal override void Setup(ExtentStatement statement)
{
// extent.UseRole(role);
}
