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< p > Library Version 11.2.5.2< / p >
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< th colspan = "3" align = "center" > Chapter
Db_set < / th >
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< h2 class = "title" > < a id = "db_set" > < / a > Chapter
Db_set < / h2 >
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< p > This class is the combination of std::set and hash_set. < / p >
< p > By setting database handles of DB_BTREE or DB_HASH type, you will be using the equivalent of std::set or hash_set. This container stores the key in the key element of a key/data pair in the underlying database, but doesn't store anything in the data element. Database and environment handle requirement: The same as that of < a class = "link" href = "db_map.html" title = "Chapter > db_map< / a >
. < / p >
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See Also
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< p > < / p >
< p > < a class = "link" href = "db_map.html" title = "Chapter > db_map< / a >
< a class = "link" href = "db_container.html" title = "Chapter > db_container< / a >
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Class Template Parameters< / h3 >
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kdt< / h4 >
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< p > The key data type. < / p >
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value_type_sub< / h4 >
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< p > If kdt is a class/struct type, do not specify anything in this parameter; Otherwise specify ElementHolder< kdt> . < / p >
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< h4 > < a id = "id3605740" > < / a > Public Members < / h4 >
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< th > Description< / th >
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< a class = "xref" href = "db_set.html#stldb_setdb_set" title = "db_set" > db_set< / a >
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< p > Create a std::set/hash_set equivalent associative container. < / p > < / td >
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< a class = "xref" href = "stldb_setdstr_db_set.html" title = "~db_set" > ~db_set< / a >
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< a class = "xref" href = "stldb_setinsert.html" title = "insert" > insert< / a >
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< p > Insert a single key/data pair if the key is not in the container. < / p > < / td >
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< a class = "xref" href = "stldb_setoperator_assign.html" title = "operator=" > operator=< / a >
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< p > Container content assignment operator. < / p > < / td >
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< a class = "xref" href = "stldb_setvalue_comp.html" title = "value_comp" > value_comp< / a >
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< p > Get value comparison functor. < / p > < / td >
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< a class = "xref" href = "stldb_setswap.html" title = "swap" > swap< / a >
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< p > Swap content with another container. < / p > < / td >
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< a class = "xref" href = "stldb_setoperator_eq.html" title = "operator==" > operator==< / a >
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< p > Set content equality comparison operator. < / p > < / td >
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< a class = "xref" href = "stldb_setoperator_ueq.html" title = "operator!=" > operator!=< / a >
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< p > Inequality comparison operator. < / p > < / td >
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Group< / h4 >
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< a class = "xref" href = "dbstl_containers.html" title = "Chapter >
Dbstl Container Classes < / a >
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< div class = "sect1" lang = "en" xml:lang = "en" >
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< h2 class = "title" style = "clear: both" > < a id = "stldb_setdb_set" > < / a > db_set< / h2 >
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db_set(Db *dbp=NULL,
DbEnv *envp=NULL)
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< p > Create a std::set/hash_set equivalent associative container. < / p >
< p > See the handle requirement in class details to pass correct database/environment handles. < / p >
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< h5 class = "title" > < a id = "id3606078" > < / a > dbp< / h5 >
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< p > The database handle. < / p >
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< h5 class = "title" > < a id = "id3606109" > < / a > envp< / h5 >
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< p > The database environment handle. < / p >
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< h4 class = "title" > < a id = "id3606039" > < / a > See Also< / h4 >
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< p > < a class = "link" href = "db_map.html#stldb_mapdb_map" title = "db_map" > db_map(Db*, DbEnv*)< / a >
< a class = "link" href = "stldb_containerdb_container.html" title = "db_container" > db_container(Db*, DbEnv*)< / a >
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db_set(Db *dbp, DbEnv *envp, InputIterator first,
InputIterator last)
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< p > Iteration constructor. < / p >
< p > Iterates between first and last, copying each of the elements in the range into this container. Create a std::set/hash_set equivalent associative container. Insert a range of elements into the database. The range is [first, last), which contains elements that can be converted to type ddt automatically. This function supports auto-commit. See the handle requirement in class details to pass correct database/environment handles. < / p >
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< p > The database handle. < / p >
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< h5 class = "title" > < a id = "id3606170" > < / a > envp< / h5 >
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< p > The database environment handle. < / p >
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< h5 class = "title" > < a id = "id3606175" > < / a > last< / h5 >
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< p > The open boundary of the range. < / p >
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< h5 class = "title" > < a id = "id3606180" > < / a > first< / h5 >
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< p > The closed boundary of the range. < / p >
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< p > < a class = "link" href = "db_map.html#stldb_mapdb_map" title = "db_map" > db_map(Db*, DbEnv*, InputIterator, InputIterator)< / a >
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db_set(const self & x)
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< p > Copy constructor. < / p >
< p > Create a database and insert all key/data pairs in x into this container. x's data members are not copied. This function supports auto-commit. < / p >
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< p > The source container to initialize this container. < / p >
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< p > < a class = "link" href = "db_map.html#stldb_mapdb_map" title = "db_map" > db_map(const db_map& )< / a >
< a class = "link" href = "stldb_containerdb_container.html" title = "db_container" > db_container(const db_container& )< / a >
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< a class = "link" href = "db_set.html" title = "Chapter > db_set< / a >
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