Search Toolkit Book for CBDB_FC_Condition
Internal class used by CBDB_FileCursor to represent search condition criteries. More...
Collaboration diagram for CBDB_FC_Condition:
Public Member Functions | |
| CBDB_BufferManager & | GetBuffer () |
| Get field buffer reference (non-const) More... | |
| const CBDB_BufferManager & | GetBuffer () const |
| Get field buffer reference (const) More... | |
| unsigned int | GetFieldsAssigned () const |
| Get number of fields assigned to condition. More... | |
| unsigned int | IncFieldsAssigned () |
| +1 increment of number of assigned fields. More... | |
| bool | IsComplete () const |
| Return TRUE if all search criteria fileds have been assigned. More... | |
| IBDB_FieldConvert & | GetUnassignedField () |
| Return next unassigned field. More... | |
| ~CBDB_FC_Condition () | |
Protected Types | |
| enum | EIncompleteVal { eAssignMinVal , eAssignMaxVal } |
Protected Member Functions | |
| CBDB_FC_Condition (const CBDB_BufferManager &key_buf, CBDB_FileCursor &cursor) | |
| Constructor. key_buf - key buffer of the main table. More... | |
| void | InitUnassignedFields (EIncompleteVal incv) |
| Set incomplete (non assigned) fields to min(max) possible values. More... | |
| void | ResetUnassigned () |
| Set number of assigned fields to zero. More... | |
Private Member Functions | |
| CBDB_FC_Condition (const CBDB_FC_Condition &) | |
| const CBDB_FC_Condition & | operator= (const CBDB_FC_Condition &) |
Private Attributes | |
| const CBDB_BufferManager & | m_KeyBuf |
| Reference on "parent file" key buffer. More... | |
| CBDB_FileCursor & | m_Cursor |
| Reference on parent cursor. More... | |
| CBDB_BufferManager | m_Buf |
| Field buffer. More... | |
| unsigned int | m_FieldsAssigned |
| Number of fields assigned (for multi-segment) prefix searches. More... | |
Friends | |
| class | CBDB_FileCursor |
| class | CBDB_ConditionHandle |
Detailed Description
Internal class used by CBDB_FileCursor to represent search condition criteries.
Definition at line 47 of file bdb_cursor.cpp.
Member Enumeration Documentation
◆ EIncompleteVal
|
protected |
| Enumerator | |
|---|---|
| eAssignMinVal | |
| eAssignMaxVal | |
Definition at line 83 of file bdb_cursor.cpp.
Constructor & Destructor Documentation
◆ ~CBDB_FC_Condition()
|
inline |
Definition at line 80 of file bdb_cursor.cpp.
References DeleteFields(), and m_Buf.
◆ CBDB_FC_Condition() [1/2]
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inlineprotected |
Constructor. key_buf - key buffer of the main table.
Definition at line 90 of file bdb_cursor.cpp.
References CBDB_BufferManager::Construct(), CBDB_BufferManager::DuplicateStructureFrom(), and m_Buf.
◆ CBDB_FC_Condition() [2/2]
|
private |
Member Function Documentation
◆ GetBuffer() [1/2]
|
inline |
Get field buffer reference (non-const)
Definition at line 51 of file bdb_cursor.cpp.
References m_Buf.
Referenced by CBDB_FileCursor::Fetch(), CBDB_FileCursor::FetchFirst(), CBDB_FileCursor::TestTo(), and CBDB_FileCursor::x_FetchFirst_Prolog().
◆ GetBuffer() [2/2]
|
inline |
◆ GetFieldsAssigned()
|
inline |
Get number of fields assigned to condition.
Definition at line 56 of file bdb_cursor.cpp.
References m_FieldsAssigned.
Referenced by CBDB_FileCursor::Fetch(), CBDB_FileCursor::FetchFirst(), and IsComplete().
◆ GetUnassignedField()
|
inline |
Return next unassigned field.
Definition at line 74 of file bdb_cursor.cpp.
References _ASSERT, CBDB_BufferManager::FieldCount(), CBDB_FileCursor::GetFieldConvert(), m_Buf, m_Cursor, and m_FieldsAssigned.
Referenced by CBDB_ConditionHandle::operator<<().
◆ IncFieldsAssigned()
|
inline |
+1 increment of number of assigned fields.
Return new fields count
Definition at line 60 of file bdb_cursor.cpp.
References _ASSERT, CBDB_BufferManager::FieldCount(), m_Buf, m_Cursor, m_FieldsAssigned, and CBDB_FileCursor::ResetFirstFetched().
Referenced by CBDB_ConditionHandle::operator<<().
◆ InitUnassignedFields()
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inlineprotected |
Set incomplete (non assigned) fields to min(max) possible values.
Definition at line 101 of file bdb_cursor.cpp.
References eAssignMinVal, CBDB_BufferManager::FieldCount(), m_Buf, m_FieldsAssigned, CBDB_BufferManager::SetMaxVal(), and CBDB_BufferManager::SetMinVal().
Referenced by CBDB_FileCursor::x_FetchFirst_Prolog().
◆ IsComplete()
|
inline |
Return TRUE if all search criteria fileds have been assigned.
Definition at line 68 of file bdb_cursor.cpp.
References CBDB_BufferManager::FieldCount(), GetFieldsAssigned(), and m_KeyBuf.
Referenced by CBDB_FileCursor::FetchFirst(), and CBDB_FileCursor::x_FetchFirst_Prolog().
◆ operator=()
|
private |
◆ ResetUnassigned()
|
inlineprotected |
Set number of assigned fields to zero.
Definition at line 111 of file bdb_cursor.cpp.
References m_FieldsAssigned.
Referenced by CBDB_FileCursor::Fetch(), CBDB_FileCursor::ReOpen(), and CBDB_FileCursor::SetCondition().
Friends And Related Function Documentation
◆ CBDB_ConditionHandle
|
friend |
Definition at line 133 of file bdb_cursor.cpp.
◆ CBDB_FileCursor
|
friend |
Definition at line 132 of file bdb_cursor.cpp.
Member Data Documentation
◆ m_Buf
|
private |
Field buffer.
Definition at line 128 of file bdb_cursor.cpp.
Referenced by CBDB_FC_Condition(), CBDB_FileCursor::FetchFirst(), GetBuffer(), GetUnassignedField(), IncFieldsAssigned(), InitUnassignedFields(), and ~CBDB_FC_Condition().
◆ m_Cursor
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private |
Reference on parent cursor.
Definition at line 125 of file bdb_cursor.cpp.
Referenced by GetUnassignedField(), and IncFieldsAssigned().
◆ m_FieldsAssigned
|
private |
Number of fields assigned (for multi-segment) prefix searches.
Definition at line 130 of file bdb_cursor.cpp.
Referenced by GetFieldsAssigned(), GetUnassignedField(), IncFieldsAssigned(), InitUnassignedFields(), and ResetUnassigned().
◆ m_KeyBuf
|
private |
Reference on "parent file" key buffer.
Definition at line 123 of file bdb_cursor.cpp.
Referenced by IsComplete().
The documentation for this class was generated from the following file:
- src/db/bdb/bdb_cursor.cpp
