/// <summary>
/// Construtor padrão.
/// </summary>
/// <param name="entityLoader">Loader.</param>
/// <param name="queryable">Consulta que será realizado.</param>
/// <param name="sourceContext">Contexto de origem dos dados.</param>
/// <param name="uiContext">Contexto de interface com o usuário.</param>
public GetEntityDescriptorsEnumerable(IEntityLoader entityLoader, Query.Queryable queryable, Colosoft.Query.ISourceContext sourceContext, string uiContext)
{
_entityLoader = entityLoader;
_queryable = queryable;
_sourceContext = sourceContext;
_uiContext = uiContext;
}
/// <summary>
/// Construtor padrão.
/// </summary>
/// <param name="queryable"></param>
/// <param name="bindStrategy">Estratégia de vinculação.</param>
/// <param name="objectCreator">Criador dos objetos.</param>
/// <param name="executeSelect">Referencia do método que será usado para executar a seleção dos dados.</param>
public QueryableSourceProvider(Query.Queryable queryable, IQueryResultBindStrategy bindStrategy, IQueryResultObjectCreator objectCreator, Func <Query.Queryable, IEnumerable <T> > executeSelect)
{
_queryable = queryable;
_bindStrategy = bindStrategy;
_objectCreator = objectCreator;
_executeSelect = executeSelect;
}
/// <summary>
/// Construtor padrão.
/// </summary>
/// <param name="entityLoader">Loader.</param>
/// <param name="queryable">Consulta que será realizado.</param>
/// <param name="sourceContext">Contexto de origem dos dados.</param>
/// <param name="uiContext">Contexto de interface com o usuário.</param>
/// <param name="entityTypeManager">Gerenciador dos tipos de entidas.</param>
/// <returns></returns>
public GetEntitiesEnumerable(EntityLoader <TEntity1, Model> entityLoader, Query.Queryable queryable, Colosoft.Query.ISourceContext sourceContext, string uiContext, IEntityTypeManager entityTypeManager)
{
_entityLoader = entityLoader;
_queryable = queryable;
_sourceContext = sourceContext;
_uiContext = uiContext;
_entityTypeManager = entityTypeManager;
}
/// <summary>
/// Executa a consulta que recupera uma seleção de valores.
/// </summary>
/// <param name="queryable"></param>
/// <returns></returns>
protected virtual IEnumerable <T> ExecuteSelect(Query.Queryable queryable)
{
if (_executeSelect != null)
{
return(_executeSelect(queryable));
}
return(queryable.Execute <T>(queryable.DataSource, _bindStrategy, _objectCreator));
}
/// <summary>
/// Cria uma nova consulta.
/// </summary>
/// <returns></returns>
public Query.Queryable CreateQuery()
{
var query = new Query.Queryable();
query.DataSource = _dataSource;
query.SourceContext = this;
return(query);
}
/// <summary>
/// Executa a consulta que recupera uma seleção de valores.
/// </summary>
/// <param name="queryable"></param>
/// <returns></returns>
protected virtual System.Collections.IEnumerable ExecuteSelect(Query.Queryable queryable)
{
if (_executeSelect != null)
{
return(_executeSelect(queryable));
}
return(queryable.Execute());
}
/// <summary>
/// Construtor padrão.
/// </summary>
/// <param name="queryable">Consulta associada.</param>
/// <param name="entityLoader"></param>
/// <param name="uiContext"></param>
/// <param name="entityTypeManager"></param>
/// <param name="parentResult"></param>
/// <param name="exceptions"></param>
public PrepareNestedQueriesResult(Query.Queryable queryable, IEntityLoader entityLoader, string uiContext, IEntityTypeManager entityTypeManager, IList <EntityLoaderCreatorArgs> parentResult, Queue <Exception> exceptions)
{
_queryable = queryable;
_entityLoader = entityLoader;
_uiContext = uiContext;
_entityTypeManager = entityTypeManager;
_parentResult = parentResult;
_exceptions = exceptions;
}
/// <summary>
/// Cria a instancia a partir de uma consulta.
/// </summary>
/// <param name="queryable"></param>
/// <param name="bindStrategy">Estratégia de vinculação.</param>
/// <param name="objectCreator">Criador de objetos.</param>
/// <param name="executeSelect">Referencia do método que será usado para executar a seleção dos dados.</param>
public Queryable(Query.Queryable queryable, IQueryResultBindStrategy bindStrategy, IQueryResultObjectCreator objectCreator, Func <Query.Queryable, IEnumerable <TEntity> > executeSelect)
{
queryable.Require("queryable").NotNull();
_sourceContext = queryable.SourceContext as ILinqSourceContext;
_queryable = queryable;
if (_sourceContext == null)
{
_sourceContext = new LinqSourceContext(queryable.SourceContext, new QueryableSourceProvider <TEntity>(queryable, bindStrategy, objectCreator, executeSelect));
}
_queryProvider = new QueryProvider(_sourceContext);
}
/// <summary>
/// Cria a instancia a partir de uma consulta.
/// </summary>
/// <param name="queryable"></param>
/// <param name="elementType"></param>
/// <param name="executeSelect">Referencia do método que será usado para executar a seleção dos dados.</param>
public CustomQueryable(Query.Queryable queryable, Type elementType, Func <Query.Queryable, System.Collections.IEnumerable> executeSelect)
{
queryable.Require("queryable").NotNull();
elementType.Require("elementType").NotNull();
_elementType = elementType;
_sourceContext = queryable.SourceContext as ILinqSourceContext;
_queryable = queryable;
if (_sourceContext == null)
{
_sourceContext = new LinqSourceContext(queryable.SourceContext, new QueryableSourceProvider(queryable, executeSelect));
}
_queryProvider = new QueryProvider(_sourceContext);
}
/// <summary>
/// Aplica os parametros da expressão para a consulta informada.
/// </summary>
/// <param name="queryable"></param>
/// <param name="expression"></param>
public void Apply(Query.Queryable queryable, Expression expression)
{
Visit(expression);
if (_takeTranslator != null)
{
queryable.Take(_takeTranslator.Count.GetValueOrDefault());
}
if (_skipTranslator != null)
{
queryable.Skip(_skipTranslator.Skip.GetValueOrDefault());
}
if (_whereTranslator != null)
{
string where = _whereTranslator.WhereClause;
if (!string.IsNullOrEmpty(where))
{
queryable.WhereClause.And(ConditionalContainer.Parse(where));
}
}
foreach (var i in _parameters)
{
queryable.Add(i);
}
if (_orderByTranslator != null && _orderByTranslator.Members.Any())
{
foreach (var i in _orderByTranslator.Members)
{
queryable.Sort = new Sort();
queryable.Sort.Add(new SortEntry(new Column(i.DataMember.Name), i.Direction == OrderDirection.Descending));
}
}
switch (_useMethod)
{
case QueryMethod.Count:
queryable.Count();
break;
case QueryMethod.Sum:
{
if (_selectTranslator == null || !_selectTranslator.DataMembers.Any())
{
}
break;
}
}
}
/// <summary>
/// Método acionado quando a consulta for executada.
/// </summary>
/// <param name="queryable"></param>
/// <returns></returns>
private IEnumerable <T> ExecuteSelect(Query.Queryable queryable)
{
IEnumerable <T> result = null;
if (_executeSelect != null)
{
result = _executeSelect(queryable, queryable.DataSource, _bindStrategy, _objectCreator);
}
else
{
result = queryable.Execute <T>(queryable.DataSource, _bindStrategy, _objectCreator);
}
if (((IVirtualListResultProcessor <T>) this).HasDataPageLoadRegisters)
{
var dataPage = new DataPage();
result = result.ToArray();
dataPage.Populate(result);
this.OnDataPageLoaded(new DataPageLoadedEventArgs <T>(dataPage));
}
return(result);
}
/// <summary>
/// Processa os resultado da consulta.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="queryable"></param>
/// <param name="uiContext"></param>
/// <param name="bindStrategy"></param>
/// <param name="objectCreator"></param>
/// <returns></returns>
private static IEnumerable <T> ExecuteSelectProcessResult <T>(this Query.Queryable queryable, string uiContext = null, Colosoft.Query.IQueryResultBindStrategy bindStrategy = null, Colosoft.Query.IQueryResultObjectCreator objectCreator = null)
{
var method = typeof(Business.IEntityManager).GetMethod("ProcessResult", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public, null, System.Reflection.CallingConventions.Any, new[] {
typeof(Query.Queryable),
typeof(Query.ISourceContext),
typeof(string)
}, null);
method = method.MakeGenericMethod(typeof(T));
try
{
return((IEnumerable <T>)method.Invoke(Colosoft.Business.EntityManager.Instance, new object[] {
queryable,
queryable.SourceContext,
uiContext
}));
}
catch (System.Reflection.TargetInvocationException ex)
{
throw ex.InnerException;
}
}
/// <summary>
/// Prepara a consulta para recupera todos os dados das entidades que serão recuperadas.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="query">Consulta sobre a qual será aplicada as sub-consultas.</param>
/// <param name="sourceContext">Contexto de origem.</param>
/// <param name="uiContext">Contexto de interface com o usuário.</param>
/// <returns>Resultado da preparação da consulta.</returns>
public PrepareNestedQueriesResult Prepare <TEntity>(Query.Queryable query, Colosoft.Query.ISourceContext sourceContext, string uiContext = null) where TEntity : class, IEntity
{
var loader = _entityTypeManager.GetLoader(typeof(TEntity));
return(loader.PrepareNestedQueries(query, uiContext, _entityTypeManager));
}
/// <summary>
/// Cria a instancia a partir de uma consulta.
/// </summary>
/// <param name="queryable"></param>
/// <param name="elementType">Tipo do elemento do resultado da consulta.</param>
public CustomQueryable(Query.Queryable queryable, Type elementType) : this(queryable, elementType, null)
{
}
/// <summary> /// Recupera a entidade completas com base na consulta informada. /// </summary> /// <param name="queryable">Consulta que será realizado.</param> /// <param name="sourceContext">Contexto de origem dos dados.</param> /// <param name="uiContext">Contexto de interface com o usuário.</param> /// <param name="entityTypeManager">Gerenciador dos tipos de entidas.</param> /// <returns></returns> public abstract IEnumerable <IEntity> GetFullEntities(Query.Queryable queryable, Colosoft.Query.ISourceContext sourceContext, string uiContext, IEntityTypeManager entityTypeManager);
/// <summary> /// Recupera os descritores das entidades associadas com o consulta informada. /// </summary> /// <param name="queryable">Consulta que será realizada.</param> /// <param name="sourceContext">Contexto de origem dos dados.</param> /// <param name="uiContext">Contexto de interface com o usuário.</param> /// <returns></returns> public abstract IEnumerable <T> GetEntityDescriptors <T>(Query.Queryable queryable, Colosoft.Query.ISourceContext sourceContext, string uiContext) where T : IEntityDescriptor;
public IEnumerable <TEntity> ProcessLazyResult <TEntity>(Query.Queryable query, Colosoft.Query.ISourceContext sourceContext, string uiContext = null, EntityLoaderLazyArgs args = null) where TEntity : class, IEntity
{
var loader = _entityTypeManager.GetLoader(typeof(TEntity));
return(new EntitiesEnumerable <TEntity>(loader.GetLazyEntities(query.Execute(), sourceContext, uiContext, _entityTypeManager, args)));
}
/// <summary>
/// Processa os descritores para o resultado.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <typeparam name="TEntityDescritor"></typeparam>
/// <param name="query"></param>
/// <param name="sourceContext"></param>
/// <param name="uiContext"></param>
/// <returns></returns>
public IEnumerable <TEntityDescritor> ProcessResultDescriptor <TEntity, TEntityDescritor>(Query.Queryable query, Colosoft.Query.ISourceContext sourceContext, string uiContext = null) where TEntity : class, IEntity where TEntityDescritor : IEntityDescriptor
{
var loader = _entityTypeManager.GetLoader(typeof(TEntity));
return(loader.GetEntityDescriptors <TEntityDescritor>(query, sourceContext, uiContext));
}
/// <summary>
/// Processa os descritores para o resultado.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="query"></param>
/// <param name="sourceContext"></param>
/// <param name="uiContext"></param>
/// <returns></returns>
public IEnumerable <IEntityDescriptor> ProcessResultDescriptor <TEntity>(Query.Queryable query, Colosoft.Query.ISourceContext sourceContext, string uiContext = null) where TEntity : class, IEntity
{
return(ProcessResultDescriptor <TEntity, IEntityDescriptor>(query, sourceContext, uiContext));
}
public IEnumerable <TEntity> ProcessResult <TEntity>(Query.Queryable query, Colosoft.Query.ISourceContext sourceContext, string uiContext = null) where TEntity : class, IEntity
{
var loader = _entityTypeManager.GetLoader(typeof(TEntity));
return(new EntitiesEnumerable <TEntity>(loader.GetFullEntities(query, sourceContext, uiContext, _entityTypeManager)));
}
/// <summary>
/// Cria a instancia a partir de uma consulta.
/// </summary>
/// <param name="queryable"></param>
public Queryable(Query.Queryable queryable) : this(queryable, null, null, null)
{
}
/// <summary>
/// Cria a instancia a partir de uma consulta.
/// </summary>
/// <param name="queryable"></param>
/// <param name="bindStrategy">Estratégia de vinculação.</param>
/// <param name="objectCreator">Criador de objetos.</param>
public Queryable(Query.Queryable queryable, IQueryResultBindStrategy bindStrategy, IQueryResultObjectCreator objectCreator = null) : this(queryable, bindStrategy, objectCreator, null)
{
}
/// <summary>
/// Construtor padrão.
/// </summary>
/// <param name="entityLoader">Loader.</param>
/// <param name="queryable">Consulta que será realizado.</param>
/// <param name="sourceContext">Contexto de origem dos dados.</param>
/// <param name="uiContext">Contexto de interface com o usuário.</param>
/// <param name="entityTypeManager">Gerenciador dos tipos de entidas.</param>
/// <returns></returns>
public GetFullEntitiesEnumerable(EntityLoader <TEntity1, Model> entityLoader, Query.Queryable queryable, Colosoft.Query.ISourceContext sourceContext, string uiContext, IEntityTypeManager entityTypeManager) : base(entityLoader, queryable, sourceContext, uiContext, entityTypeManager)
{
}
/// <summary>
/// Construtor padrão.
/// </summary>
/// <param name="queryable"></param>
/// <param name="executeSelect">Referencia do método que será usado para executar a seleção dos dados.</param>
public QueryableSourceProvider(Query.Queryable queryable, Func <Query.Queryable, System.Collections.IEnumerable> executeSelect)
{
_queryable = queryable;
_executeSelect = executeSelect;
}
