| 1 | using System;
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| 2 | using System.Collections.Generic;
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| 3 | using System.Linq;
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| 4 | using System.Linq.Expressions;
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| 5 | using System.Text;
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| 6 |
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| 7 | namespace Wierszowki.Core.Interfaces
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| 8 | {
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| 9 | /// <summary>
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| 10 | /// Contact for the Repository pattern
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| 11 | /// </summary>
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| 12 | /// <typeparam name="T"></typeparam>
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| 13 | public interface IRepository<T>
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| 14 | where T : IIdentifiable
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| 15 | {
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| 16 | /// <summary>
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| 17 | /// Returns a count of the items in the repository
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| 18 | /// </summary>
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| 19 | int Count();
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| 20 |
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| 21 | /// <summary>
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| 22 | /// Returns a count of the items in the repository which match the supplied lambda
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| 23 | /// </summary>
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| 24 | /// <param name="expression">A lambda expression which will be evaluated against the repository</param>
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| 25 | int Count(Expression<Func<T, bool>> expression);
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| 26 |
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| 27 | /// <summary>
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| 28 | /// Adds a new entity in to the repository
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| 29 | /// </summary>
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| 30 | void Insert(T entity);
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| 31 |
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| 32 | /// <summary>
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| 33 | /// Removes the specified entity from the repository
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| 34 | /// </summary>
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| 35 | void Delete(T entity);
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| 36 |
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| 37 | /// <summary>
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| 38 | /// Saves the specified entity back to the repository
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| 39 | /// </summary>
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| 40 | void Update(T entity);
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| 41 |
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| 42 | /// <summary>
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| 43 | /// Finds a single instance of an entity matching a unique identifier.
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| 44 | /// </summary>
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| 45 | T FindOne(int id);
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| 46 |
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| 47 | /// <summary>
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| 48 | /// Finds a single instance of an entity matching a lambda expression
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| 49 | /// </summary>
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| 50 | /// <returns>The first entity which matches the expession</returns>
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| 51 | T FindOne(Expression<Func<T, bool>> expression);
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| 52 |
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| 53 | /// <summary>
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| 54 | /// Tries the find one.
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| 55 | /// </summary>
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| 56 | /// <param name="expression">The expression.</param>
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| 57 | /// <param name="entity">The entity.</param>
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| 58 | /// <returns></returns>
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| 59 | bool TryFindOne(Expression<Func<T, bool>> expression, out T entity);
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| 60 |
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| 61 | /// <summary>
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| 62 | /// Tries the find one.
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| 63 | /// </summary>
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| 64 | /// <param name="expression">The expression.</param>
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| 65 | /// <returns></returns>
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| 66 | bool Exists(Expression<Func<T, bool>> expression);
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| 67 |
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| 68 | /// <summary>
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| 69 | /// Finds all entities in the repository
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| 70 | /// </summary>
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| 71 | /// <returns></returns>
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| 72 | IList<T> FindAll();
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| 73 |
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| 74 | /// <summary>
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| 75 | /// Finds all entities matching a lambda expression
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| 76 | /// </summary>
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| 77 | /// <param name="expression">The expression.</param>
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| 78 | /// <returns></returns>
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| 79 | IList<T> FindAll(Expression<Func<T, bool>> expression);
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| 80 |
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| 81 | /// <summary>
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| 82 | /// Returns a requeryable set of all entities in the repository
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| 83 | /// </summary>
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| 84 | IQueryable<T> Find();
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| 85 |
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| 86 | /// <summary>
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| 87 | /// Returns a requeryable set of all entities in the repository matching a unique identifier
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| 88 | /// </summary>
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| 89 | IQueryable<T> Find(int id);
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| 90 |
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| 91 | /// <summary>
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| 92 | /// Returns a requeryable set of all entities in the repository matching a lambda expression
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| 93 | /// </summary>
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| 94 | IQueryable<T> Find(Expression<Func<T, bool>> expression);
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| 95 | }
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| 96 | } |
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