/// <summary>
/// Retrieve all the instances of a determinate class that fulfil a determinate formula of searching
/// </summary>
/// <param name="linkedTo">List to reach the class to retrieve the related instance</param>
/// <param name="filters">Formula to search concrete instances</param>
/// <param name="comparer">Order Criteria that must be followed by the query</param>
/// <param name="startRowOid">OID frontier</param>
/// <param name="blockSize">Number of instances to be returned</param>
/// <returns>Instances that check the filter list</returns>
protected virtual ONCollection SolveQuery(ONLinkedToList linkedTo, ONFilterList onFilterList, ONDisplaySet displaySet, ONOrderCriteria comparer, ONOid startRowOid, int blockSize)
{
ONSqlSelect lOnSql = new ONSqlSelect();
try
{
// Create select and first table
InhRetrieveInstances(lOnSql, displaySet, null, OnContext);
// Fix related instance
if (!AddLinkedTo(lOnSql, linkedTo))
{
return(ONContext.GetComponent_Collection(ClassName, OnContext));
}
// Add filter formula
if (onFilterList != null)
{
onFilterList.FilterInData(lOnSql, this);
}
// Retrieve query instance number
int lTotalNumInstances = -1;
if (OnContext.CalculateQueryInstancesNumber)
{
if ((onFilterList == null) || (!onFilterList.InMemory))
{
ArrayList lSqlParameters;
string lNumInstancesSqlSentence = ONSqlSelect.GenerateSQLAsCount(lOnSql, out lSqlParameters);
lTotalNumInstances = Convert.ToInt32(ExecuteScalar(lNumInstancesSqlSentence, lSqlParameters));
}
OnContext.CalculateQueryInstancesNumber = false;
}
// OrderCriteria
AddOrderCriteria(lOnSql, comparer, startRowOid, blockSize);
// Execute
ONCollection lONCollection = ExecuteSql(lOnSql, onFilterList, displaySet, comparer, startRowOid, blockSize);
// Set Query instance number
if (lTotalNumInstances > -1)
{
lONCollection.totalNumInstances = lTotalNumInstances;
}
return(lONCollection);
}
catch (Exception e)
{
string ltraceItem = "Method: SolveQuery, Component: ONDBData";
if (e is ONSystemException)
{
ONSystemException lException = e as ONSystemException;
lException.addTraceInformation(ltraceItem);
throw lException;
}
throw new ONSystemException(e, ltraceItem);
}
}
public override object Clone()
{
ONCollection lCollection = ONContext.GetComponent_Collection(ClassName, OnContext);
lCollection.Union(this);
return(lCollection);
}
public static ONCollection operator +(ONCollection collection, ONInstance instance)
{
ONCollection lCollection = ONContext.GetComponent_Collection(collection.ClassName, collection.OnContext);
lCollection.Union(collection);
lCollection.Add(instance);
return(lCollection);
}
public static ONCollection Intersection(ONCollection collection1, ONCollection collection2)
{
ONCollection lCollection = ONContext.GetComponent_Collection(collection1.ClassName, collection1.OnContext);
if ((collection1 == null) || (collection2 == null))
{
return(lCollection);
}
foreach (ONInstance lInstance in collection1)
{
if (!collection2.Contains(lInstance))
{
lCollection.Add(lInstance);
}
}
return(lCollection);
}
/// <summary>
/// This method recovers an instance with the OID
/// </summary>
/// <param name="onContext">Recovers the context of the execution of the service</param>
/// <param name="linkedTo">List to reach the class to retrieve the related instance</param>
/// <param name="comparer">Order Criteria that must be followed</param>
/// <param name="${startRowOid}">OID frontier</param>
/// <param name="blockSize">Number of instances to be returned</param>
/// <returns>The instance</returns>
public override ONCollection FilterInLegacy(ONContext onContext, ONLinkedToList linkedTo, ONOrderCriteria comparer, ONOid startRowOID, int blockSize)
{
if (InData)
{
return(null);
}
// Add parameters
object[] lParameters = new object[2];
lParameters[0] = onContext;
lParameters[1] = mOid;
ONCollection lCollection = ONContext.GetComponent_Collection(mOid.ClassName, onContext);
ONInstance lInstance = ONContext.InvoqueMethod(ONContext.GetType_LV(mOid.ClassName), "QueryByOid", lParameters) as ONInstance;
if (lInstance != null)
{
lCollection.Add(lInstance);
}
return(lCollection);
}
/// <summary>
/// Retrieve all the instances of a determinate class that fulfil a determinate formula of searching
/// </summary>
/// <param name="linkedTo">List to reach the class to retrieve the related instance</param>
/// <param name="filters">Formula to search concrete instances</param>
/// <param name="comparer">Order Criteria that must be followed by the query</param>
/// <param name="startRowOID">OID frontier</param>
/// <param name="blockSize">Number of instances to be returned</param>
public override ONCollection ExecuteQuery(ONLinkedToList linkedTo, ONFilterList filters, ONDisplaySet displaySet, ONOrderCriteria comparer, ONOid startRowOid, int blockSize)
{
try
{
ONCollection lInstances = null;
Type lTypeInstance = ONContext.GetType_Instance(ClassName);
Type lTypeQuery = ONContext.GetType_Query(ClassName);
// Initialize the list of related queries
if (linkedTo == null)
{
linkedTo = new ONLinkedToList();
}
// Initialize the filter list
if (filters == null)
{
filters = new ONFilterList();
}
ONLinkedToList lLinkedToLegacy = new ONLinkedToList();
ONLinkedToList lLinkedToLocal = new ONLinkedToList();
ONLinkedToList lLinkedToMixed = new ONLinkedToList();
#region Treatment of LinkedTo
foreach (KeyValuePair <ONPath, ONOid> lDictionaryEntry in linkedTo)
{
ONPath lPath = lDictionaryEntry.Key as ONPath;
ONOid lOid = lDictionaryEntry.Value as ONOid;
ONPath lInversePath = new ONPath(ONInstance.InversePath(lTypeInstance, lPath));
Type lTypeTargetClassInstance = ONContext.GetType_Instance(ONInstance.GetTargetClass(OnContext, lTypeInstance, lPath));
if ((lInversePath.Count == 0) || (!ONInstance.IsVisible(lTypeTargetClassInstance, lInversePath, OnContext)))
{
return(ONContext.GetComponent_Collection(ClassName, OnContext));
}
bool lexistLV = false;
ONData lData = ONContext.GetComponent_Data(InhGetTargetClassName(lPath), OnContext);
if (lData.GetType().BaseType == typeof(ONLVData))
{
if (!lOid.Exist(OnContext, null))
{
return(ONContext.GetComponent_Collection(ClassName, OnContext));
}
}
foreach (string lRole in lInversePath.Roles)
{
lData = ONContext.GetComponent_Data(lData.InhGetTargetClassName(new ONPath(lRole)), OnContext);
if (lData.GetType().BaseType == typeof(ONLVData))
{
lexistLV = true;
}
}
if (!lexistLV)
{
lLinkedToLocal.mLinkedToList.Add(lPath, lOid);
}
else
{
lLinkedToMixed.mLinkedToList.Add(lPath, lOid);
}
}
#endregion
#region displaySet
if (!filters.PreloadRelatedAttributes)
{
displaySet = null;
}
#endregion displaySet
#region No link item
if ((linkedTo.mLinkedToList.Count == 0) || (lLinkedToMixed.mLinkedToList.Count > 0))
{
if ((GetType().BaseType != typeof(ONLVData)) || (filters.InData))
{
lInstances = SolveQuery(new ONLinkedToList(), filters, displaySet, comparer, startRowOid, blockSize);
}
}
#endregion
#region Local Link
if (lLinkedToLocal.mLinkedToList.Count > 0)
{
ONCollection lInstancesAux = SolveQuery(lLinkedToLocal, filters, displaySet, comparer, startRowOid, blockSize);
if (lInstances != null)
{
lInstances.Intersection(lInstancesAux);
}
else
{
lInstances = lInstancesAux;
}
}
#endregion
#region Hybrid Link
if (lLinkedToMixed.mLinkedToList.Count > 0)
{
ONCollection lInstancesAux = null;
foreach (KeyValuePair <ONPath, ONOid> lDictionaryEntry in lLinkedToMixed)
{
ONPath lPath = lDictionaryEntry.Key as ONPath;
ONOid lOid = lDictionaryEntry.Value as ONOid;
if (lPath.Roles.Count == 1)
{
ONLinkedToList lLinked = new ONLinkedToList();
lLinked[lPath] = lOid;
ONCollection lInstanceColl = SolveQuery(lLinked, filters, displaySet, comparer, startRowOid, blockSize);
if (lInstances != null)
{
lInstances.Intersection(lInstanceColl);
}
else
{
lInstances = lInstanceColl;
}
continue;
}
#region Optimized Path
ONLinkedToList linkedToOptimized = new ONLinkedToList();
ONPath lInversePath = new ONPath(ONInstance.InversePath(lTypeInstance, lPath));
ONPath lOptimizedRole = new ONPath(lInversePath.RemoveHead() as string);
Type lTypeInstanceDestiny = ONContext.GetType_Instance(InhGetTargetClassName(lPath));
bool lBeginIsLegacy = (ONInstance.IsLegacy(lTypeInstanceDestiny, lOptimizedRole));
bool lEnterLoop = true;
ONData lData = ONContext.GetComponent_Data(InhGetTargetClassName(lPath), OnContext);
if (lData.GetType().BaseType != typeof(ONLVData))
{
if (ONContext.GetType_Data(lData.InhGetTargetClassName(lOptimizedRole)).BaseType == typeof(ONLVData))
{
lEnterLoop = false;
}
}
lPath.RemoveTail();
if (lEnterLoop)
{
while (lInversePath.Roles.Count > 0)
{
lData = ONContext.GetComponent_Data(InhGetTargetClassName(lPath), OnContext);
if ((!lBeginIsLegacy) && (ONContext.GetType_Data(lData.InhGetTargetClassName(new ONPath(lInversePath.Roles[0]))).BaseType == typeof(ONLVData)))
{
break;
}
if ((lBeginIsLegacy) && (ONContext.GetType_Data(lData.InhGetTargetClassName(new ONPath(lInversePath.Roles[0]))).BaseType != typeof(ONLVData)))
{
break;
}
lOptimizedRole.Roles.Add(lInversePath.RemoveHead());
lPath.RemoveTail();
}
}
linkedToOptimized[ONInstance.InversePath(lTypeInstanceDestiny, lOptimizedRole)] = lOid;
if ((lPath.Count > 0) || (lBeginIsLegacy))
{
// It is not the last role or it is leged
lInstancesAux = ONContext.GetComponent_Data(InhGetTargetClassName(lPath), OnContext).ExecuteQuery(linkedToOptimized, null, null, comparer, startRowOid, blockSize);
}
else
{
// It is the last role and it is local
lInstancesAux = ONContext.GetComponent_Data(InhGetTargetClassName(lPath), OnContext).ExecuteQuery(linkedToOptimized, null, displaySet, comparer, startRowOid, blockSize);
}
#endregion
#region Rest of the path
lInstancesAux = lInstancesAux[lInversePath] as ONCollection;
#endregion
if (lInstances != null)
{
lInstances.Intersection(lInstancesAux);
}
else
{
lInstances = lInstancesAux;
}
}
}
#endregion
return(lInstances);
}
catch (Exception e)
{
string ltraceItem = "Method: SolveQuery, Component: ONDBData";
if (e is ONSystemException)
{
ONSystemException lException = e as ONSystemException;
lException.addTraceInformation(ltraceItem);
throw lException;
}
throw new ONSystemException(e, ltraceItem);
}
}
public override ONCollection ExecuteQuery(ONLinkedToList linkedTo, ONFilterList filters, ONDisplaySet displaySet, ONOrderCriteria comparer, ONOid startRowOid, int blockSize)
{
ONCollection lInstances = null;
Type lTypeInstance = ONContext.GetType_Instance(ClassName);
ONLinkedToList lLinkedToLegacy = new ONLinkedToList();
ONLinkedToList lLinkedToLocal = new ONLinkedToList();
if (linkedTo == null)
{
linkedTo = new ONLinkedToList();
}
if (filters == null)
{
filters = new ONFilterList();
}
#region Treatment of LinkedTo
foreach (KeyValuePair <ONPath, ONOid> lDictionaryEntry in linkedTo)
{
ONPath lPath = lDictionaryEntry.Key as ONPath;
ONOid lOid = lDictionaryEntry.Value as ONOid;
if (ONInstance.IsLegacy(lTypeInstance, lPath))
{
lLinkedToLegacy.mLinkedToList.Add(lPath, lOid);
}
else
{
lLinkedToLocal.mLinkedToList.Add(lPath, lOid);
}
}
#endregion Treatment of LinkedTo
ONFilterList lFiltersToLegacy = new ONFilterList();
ONFilterList lFiltersToLocal = new ONFilterList();
#region Treatment of Filters
ONFilterList lFiltersToMixed = new ONFilterList();
foreach (ONFilter lFilter in filters.Values)
{
if (lFilter.InLegacy)
{
lFiltersToLegacy.Add(lFilter.FilterName, lFilter);
}
else
{
lFiltersToLocal.Add(lFilter.FilterName, lFilter);
}
}
#endregion Treatment of Filters
if ((lFiltersToLegacy.Count <= 1) && (lFiltersToLocal.Count == 0) && (lLinkedToLocal.mLinkedToList.Count == 0))
{
#region No leged filters
if (lFiltersToLegacy.Count == 0)
{
QueryByRelatedFilter lFilter = new QueryByRelatedFilter(ClassName, null, null);
lInstances = lFilter.FilterInLegacy(OnContext, lLinkedToLegacy, comparer, startRowOid, (blockSize == 0 ? 0 : blockSize + 1));
}
#endregion No leged filters
#region Solve leged filters
foreach (ONFilter lFilter in lFiltersToLegacy.Values)
{
ONCollection lInstancesAux = lFilter.FilterInLegacy(OnContext, lLinkedToLegacy, comparer, startRowOid, (blockSize == 0 ? 0 : blockSize + 1));
if (lInstances == null)
{
lInstances = lInstancesAux;
}
else
{
lInstances.Intersection(lInstancesAux);
}
}
#endregion Solve leged filters
if ((lInstances.totalNumInstances == -1) && (lInstances.Count <= blockSize) && ((startRowOid == null).TypedValue))
{
lInstances.totalNumInstances = lInstances.Count;
}
}
else
{
#region Solve leged filters
foreach (ONFilter lFilter in lFiltersToLegacy.Values)
{
ONCollection lInstancesAux = lFilter.FilterInLegacy(OnContext, lLinkedToLegacy, comparer, null, 0);
if (lInstances == null)
{
lInstances = lInstancesAux;
}
else
{
lInstances.Intersection(lInstancesAux);
}
}
#endregion Solve leged filters
#region Solve local filters in data
if ((lFiltersToLocal.InData) || (lLinkedToLocal.mLinkedToList.Count > 0))
{
ONCollection lInstancesAux = base.ExecuteQuery(lLinkedToLocal, lFiltersToLocal, displaySet, null, null, 0);
if (lInstances == null)
{
lInstances = lInstancesAux;
}
else
{
lInstances.Intersection(lInstancesAux);
}
}
#endregion Solve local filters in data
#region No leged filters
if (lFiltersToLegacy.Count == 0)
{
int maxNumberQueries = Convert.ToInt32(ONContext.GetType_LV(ClassName).GetField("maxNumberQueries").GetValue(null));
if ((lInstances == null || lInstances.Count > maxNumberQueries) || (lLinkedToLegacy.mLinkedToList.Count > 0) || (comparer != null))
{
ONCollection lInstancesAux = lInstances;
QueryByRelatedFilter lFilter = new QueryByRelatedFilter(ClassName, null, null);
lInstances = lFilter.FilterInLegacy(OnContext, lLinkedToLegacy, comparer, null, 0);
if (lInstancesAux != null)
{
lInstances.Intersection(lInstancesAux);
}
}
else
{
ONCollection lInstancesAux = ONContext.GetComponent_Collection(ClassName, OnContext);
foreach (object lobject in lInstances)
{
ONInstance lInstance = lobject as ONInstance;
QueryByOidFilter lFilter = new QueryByOidFilter(lInstance.Oid);
lInstancesAux.AddRange(lFilter.FilterInLegacy(OnContext, null, null, null, 0));
}
lInstances = lInstancesAux.Clone() as ONCollection;
}
}
#endregion No leged filters
#region Solve local filters in memory
if ((lInstances != null) && (lFiltersToLocal.InMemory))
{
ONCollection lInstancesAux = lInstances;
lInstances = ONContext.GetComponent_Collection(ClassName, OnContext);
foreach (ONInstance lInstance in lInstancesAux)
{
if (lFiltersToLocal.FilterInMemory(lInstance))
{
lInstances.Add(lInstance);
}
}
}
#endregion Solve local filters in memory
lInstances.totalNumInstances = lInstances.Count;
}
return(lInstances);
}