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