2 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
4 // Licensed under the Apache License, Version 2.0 (the License);
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
8 // http://www.apache.org/licenses/LICENSE-2.0
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
18 * @file FBaseColIHashCodeProviderT.h
19 * @brief This is the header file for the %IHashCodeProviderT interface.
21 * This header file contains the declarations of the %IHashCodeProviderT interface.
23 #ifndef _FBASE_COL_IHASH_CODE_PROVIDER_T_H_
24 #define _FBASE_COL_IHASH_CODE_PROVIDER_T_H_
26 namespace Tizen { namespace Base { namespace Collection
30 * @interface IHashCodeProviderT
31 * @brief This interface represents classes that can provide the hash code of a specific type of template-based object.
35 * The %IHashCodeProviderT interface represents classes that can provide the hash code of a specific type of template-based object.
38 template< class Type >
39 class IHashCodeProviderT
43 * This polymorphic destructor should be overridden if required. @n
44 * This way, the destructors of the derived classes are called when the destructor of this interface is called.
48 virtual ~IHashCodeProviderT(void) {}
51 * Gets the hash code of the specified object.
55 * @return The hash code of the specified object
56 * @param[in] obj A pointer to the object for which the hash code is required
57 * @remarks The hash algorithm is usually specific to a type. @n
58 * Two equal instances must return the same hash value.
59 * For better performance, the used hash function must generate a random distribution for all inputs.
61 virtual int GetHashCode(const Type& obj) const = 0;
63 }; // IHashCodeProviderT
65 }}} // Tizen::Base::Collection
67 #endif // _FBASE_COL_IHASH_CODE_PROVIDER_T_H_