Generated on Wed Dec 28 22:33:28 2005 by Doxygen 1.4.4 for OpenBinder Documentation Version 1.0
PalmSource, Inc. © 2005
00001 /* 00002 * Copyright (c) 2005 Palmsource, Inc. 00003 * 00004 * This software is licensed as described in the file LICENSE, which 00005 * you should have received as part of this distribution. The terms 00006 * are also available at http://www.openbinder.org/license.html. 00007 * 00008 * This software consists of voluntary contributions made by many 00009 * individuals. For the exact contribution history, see the revision 00010 * history and logs, available at http://www.openbinder.org 00011 */ 00012 00013 #ifndef _DMPROVIDER_SCHEMATAROWIDJOIN_H 00014 #define _DMPROVIDER_SCHEMATAROWIDJOIN_H 00015 00021 #include <dmprovider/SchemaTableNode.h> 00022 00023 #if _SUPPORTS_NAMESPACE 00024 namespace palmos { 00025 namespace dmprovider { 00026 using namespace palmos::storage; 00027 #endif 00028 00033 // ========================================================================== 00034 // ========================================================================== 00035 00037 00054 class BSchemaRowIDJoin : public BMetaDataNode, public BGenericIterable 00055 { 00056 public: 00057 // -------------------------------------------------------------- 00061 00062 00074 BSchemaRowIDJoin( const SContext& context, 00075 const sptr<BSchemaTableNode>& primary, 00076 const sptr<BSchemaTableNode>& join, 00077 const SString& joinIDCol, 00078 const SString& primaryColumnName = SString()); 00079 protected: 00081 virtual ~BSchemaRowIDJoin(); 00082 public: 00083 00085 virtual lock_status_t Lock() const; 00087 virtual void Unlock() const; 00089 inline SContext Context() { return BMetaDataNode::Context(); } 00091 virtual SValue Inspect(const sptr<IBinder>& caller, const SValue& which, uint32_t flags); 00093 status_t StatusCheck() const; 00095 00096 // -------------------------------------------------------------- 00100 00102 00106 virtual void SetMimeType(const SString& value); 00107 00109 SString RowMimeTypeLocked() const; 00110 00112 status_t StoreRowMimeTypeLocked(const SString& mimeType); 00113 00115 00116 // -------------------------------------------------------------- 00120 00121 class RowNode; 00122 00124 virtual status_t LookupEntry(const SString& entry, uint32_t flags, SValue* node); 00125 00127 sptr<RowNode> NodeForLocked( const sptr<BSchemaTableNode::RowNode>& priNode, 00128 const sptr<BSchemaTableNode::RowNode>& joinNode); 00129 00131 00132 // ------------------------------------------------------------------ 00135 00136 class JoinIterator; 00137 00138 virtual sptr<GenericIterator> NewGenericIterator(const SValue& args); 00139 00141 00143 virtual sptr<RowNode> NewRowNodeLocked( const sptr<BSchemaTableNode::RowNode>& priNode, 00144 const sptr<BSchemaTableNode::RowNode>& joinNode); 00145 00147 private: 00148 BSchemaRowIDJoin(const BSchemaRowIDJoin&); 00149 BSchemaRowIDJoin& operator=(const BSchemaRowIDJoin&); 00150 00151 friend class RowNode; 00152 friend class JoinIterator; 00153 00154 const sptr<BSchemaTableNode> m_primaryTable; 00155 const sptr<BSchemaTableNode> m_joinTable; 00156 const SString m_joinIDColumn; 00157 const SString m_primaryColumnName; 00158 00159 ssize_t m_joinIDIndex; 00160 00161 SString m_rowMimeType; 00162 00163 sptr<BSchemaTableNode::DataAccessor> m_primaryData; 00164 sptr<BSchemaTableNode::DataAccessor> m_joinData; 00165 00166 struct node_key { 00167 sptr<BSchemaTableNode::RowNode> primary; 00168 sptr<BSchemaTableNode::RowNode> join; 00169 00170 bool operator<(const node_key& o) const { return primary < o.primary || join < o.join; } 00171 }; 00172 00173 SKeyedVector<node_key, wptr<RowNode> > m_nodes; 00174 }; 00175 00176 // -------------------------------------------------------------------------- 00177 00179 00186 class BSchemaRowIDJoin::RowNode : public BMetaDataNode, public BIndexedIterable 00187 { 00188 public: 00189 // -------------------------------------------------------------- 00193 RowNode( const SContext& context, 00194 const sptr<BSchemaRowIDJoin>& owner, 00195 const sptr<BSchemaTableNode::RowNode>& primary, 00196 const sptr<BSchemaTableNode::RowNode>& join); 00197 protected: 00198 virtual ~RowNode(); 00200 virtual status_t FinishAtom(const void* id); 00202 virtual bool HoldRefForLink(const SValue& binding, uint32_t flags); 00203 public: 00204 00206 virtual lock_status_t Lock() const; 00208 virtual void Unlock() const; 00210 inline SContext Context() { return BMetaDataNode::Context(); } 00212 virtual SValue Inspect(const sptr<IBinder>& caller, const SValue& which, uint32_t flags); 00213 00215 00216 // -------------------------------------------------------------- 00220 00222 virtual status_t LookupEntry(const SString& entry, uint32_t flags, SValue* node); 00224 virtual status_t EntryAtLocked(const sptr<IndexedIterator>& it, size_t index, uint32_t flags, SValue* key, SValue* entry); 00226 virtual SString MimeTypeLocked() const; 00228 virtual status_t StoreMimeTypeLocked(const SString& value); 00230 virtual size_t CountEntriesLocked() const; 00231 00233 00234 private: 00235 RowNode(const RowNode&); 00236 RowNode& operator=(const RowNode&); 00237 00238 const sptr<BSchemaRowIDJoin> m_owner; 00239 const sptr<BSchemaTableNode::RowNode> m_primary; 00240 const sptr<BSchemaTableNode::RowNode> m_join; 00241 }; 00242 00243 // -------------------------------------------------------------------------- 00244 00246 00251 class BSchemaRowIDJoin::JoinIterator : public BGenericIterable::GenericIterator 00252 { 00253 public: 00254 // -------------------------------------------------------------- 00258 JoinIterator(const SContext& context, const sptr<BSchemaRowIDJoin>& owner); 00259 protected: 00260 virtual ~JoinIterator(); 00262 virtual SValue Inspect(const sptr<IBinder>& caller, const SValue& which, uint32_t flags); 00263 public: 00265 virtual status_t FinishAtom(const void* id); 00266 00268 00269 virtual SValue Options() const; 00270 virtual status_t Remove(); 00271 virtual size_t Count() const; 00272 virtual size_t Position() const; 00273 virtual void SetPosition(size_t p); 00274 00275 virtual status_t ParseArgs(const SValue& args); 00276 00277 virtual status_t NextLocked(uint32_t flags, SValue* key, SValue* entry); 00278 00279 private: 00280 JoinIterator(const JoinIterator&); 00281 JoinIterator& operator=(const JoinIterator&); 00282 00283 const sptr<BSchemaRowIDJoin> m_owner; 00284 sptr<BSchemaTableNode::DataAccessor> m_primaryData; 00285 sptr<BSchemaTableNode::QueryIterator> m_joinIterator; 00286 SValue m_args; 00287 bool m_includePrimaryNode; 00288 }; 00289 00290 // ========================================================================== 00291 // ========================================================================== 00292 00295 #if _SUPPORTS_NAMESPACE 00296 } } // namespace palmos::dmprovider 00297 #endif 00298 00299 #endif // _DMPROVIDER_SCHEMATAROWIDJOIN_H
Generated on Wed Dec 28 22:33:28 2005 by Doxygen 1.4.4 for OpenBinder Documentation Version 1.0
PalmSource, Inc. © 2005