Class CRUDQueryHandler
Represents an entity that can execute a query. The implementation may be called by multiple threads and must be safe
Inheritance
System.Object
CRUDQueryHandler
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Assembly: Azos.dll
Syntax
public abstract class CRUDQueryHandler : INamed
Constructors
CRUDQueryHandler(ICRUDDataStore, QuerySource)
Declaration
protected CRUDQueryHandler(ICRUDDataStore store, QuerySource source)
Parameters
CRUDQueryHandler(ICRUDDataStore, String)
Declaration
protected CRUDQueryHandler(ICRUDDataStore store, string name)
Parameters
Fields
Source
Declaration
protected readonly QuerySource Source
Field Value
Properties
Name
Returns query name that this handler handles
Declaration
public string Name { get; }
Property Value
| Type |
Description |
| System.String |
|
Store
Store instance that handler is under
Declaration
public ICRUDDataStore Store { get; }
Property Value
Methods
Execute(ICRUDQueryExecutionContext, Query, Boolean)
Executes query. The implementation may be called by multiple threads and must be safe
Declaration
public abstract RowsetBase Execute(ICRUDQueryExecutionContext context, Query query, bool oneRow = false)
Parameters
Returns
ExecuteAsync(ICRUDQueryExecutionContext, Query, Boolean)
Executes query. The implementation may be called by multiple threads and must be safe
Declaration
public abstract Task<RowsetBase> ExecuteAsync(ICRUDQueryExecutionContext context, Query query, bool oneRow = false)
Parameters
Returns
| Type |
Description |
| System.Threading.Tasks.Task<RowsetBase> |
|
ExecuteWithoutFetch(ICRUDQueryExecutionContext, Query)
Executes query that dows not return results. The implementation may be called by multiple threads and must be safe.
Returns rows affected
Declaration
public abstract int ExecuteWithoutFetch(ICRUDQueryExecutionContext context, Query query)
Parameters
Returns
| Type |
Description |
| System.Int32 |
|
ExecuteWithoutFetchAsync(ICRUDQueryExecutionContext, Query)
Executes query that dows not return results. The implementation may be called by multiple threads and must be safe.
Returns rows affected
Declaration
public abstract Task<int> ExecuteWithoutFetchAsync(ICRUDQueryExecutionContext context, Query query)
Parameters
Returns
| Type |
Description |
| System.Threading.Tasks.Task<System.Int32> |
|
GetSchema(ICRUDQueryExecutionContext, Query)
Executes query without fetching any data but schema. The implementation may be called by multiple threads and must be safe
Declaration
public abstract Schema GetSchema(ICRUDQueryExecutionContext context, Query query)
Parameters
Returns
GetSchemaAsync(ICRUDQueryExecutionContext, Query)
Executes query without fetching any data but schema. The implementation may be called by multiple threads and must be safe
Declaration
public abstract Task<Schema> GetSchemaAsync(ICRUDQueryExecutionContext context, Query query)
Parameters
Returns
| Type |
Description |
| System.Threading.Tasks.Task<Schema> |
|
OpenCursor(ICRUDQueryExecutionContext, Query)
Executes query into Cursor. The implementation may be called by multiple threads and must be safe
Declaration
public abstract Cursor OpenCursor(ICRUDQueryExecutionContext context, Query query)
Parameters
Returns
OpenCursorAsync(ICRUDQueryExecutionContext, Query)
Executes query into Cursor. The implementation may be called by multiple threads and must be safe
Declaration
public abstract Task<Cursor> OpenCursorAsync(ICRUDQueryExecutionContext context, Query query)
Parameters
Returns
| Type |
Description |
| System.Threading.Tasks.Task<Cursor> |
|
Implements
Extension Methods