private ExecutionBuilder(IDialect dialect, InternalDbContext policy, Expression executor)
{
this.Dialect = dialect;
dbContext = policy;
this.policy = policy;
this.executor = executor;
}
/// <summary>
/// 初始化 <see cref="DefaultContextService"/> 类的新实例。
/// </summary>
/// <param name="context"></param>
/// <param name="databaseFactory">一个用于创建 <see cref="IDatabase"/> 的工厂函数。</param>
public DefaultContextService(ContextServiceContext context)
: base(context)
{
_databaseCreateor = () => CreateDatabase(context);
QueryPolicy = new DefaultQueryPolicy(Provider);
}
/// <summary>
/// Adds policy to GuardianKernel.
/// </summary>
/// <param name="kernel">The kernel.</param>
/// <param name="policy">The policy.</param>
/// <returns></returns>
public static GuardianKernel UsePolicy(this GuardianKernel kernel, IQueryPolicy policy)
{
kernel.QueryPolicies.Add(policy);
return(kernel);
}
public RelationshipIncluder(IQueryPolicy policy)
{
this.policy = policy;
}
public static Expression Include(IQueryPolicy policy, Expression expression)
{
return(new RelationshipIncluder(policy).Visit(expression));
}
private RelationshipIncluder(IDbExpressionBuilder dbExpressionBuilder, InternalDbContext policy)
{
this.dbExpressionBuilder = dbExpressionBuilder;
this.policy = policy;
}
private ClientJoinedProjectionRewriter(InternalDbContext dbContext)
{
this.policy = dbContext;
this.dbExpressionBuilder = dbContext.ExpressionBuilder;
}
private ClientJoinedProjectionRewriter(InternalDbContext dbContext)
{
this.policy = dbContext;
this.dbExpressionBuilder = dbContext.ExpressionBuilder;
}
public bool Equals(IQueryPolicy other)
{
return other != null
&& this.Limit == other.Limit
&& this.DeferLoadComplexTypes == other.DeferLoadComplexTypes;
}
