idx int64 0 165k | question stringlengths 73 4.15k | target stringlengths 5 918 | len_question int64 21 890 | len_target int64 3 255 |
|---|---|---|---|---|
154,900 | public String getUserName ( ) throws SQLException { ResultSet rs = execute ( "CALL USER()" ) ; rs . next ( ) ; String result = rs . getString ( 1 ) ; rs . close ( ) ; return result ; } | Retrieves the user name as known to this database . | 55 | 12 |
154,901 | public boolean isReadOnly ( ) throws SQLException { ResultSet rs = execute ( "CALL isReadOnlyDatabase()" ) ; rs . next ( ) ; boolean result = rs . getBoolean ( 1 ) ; rs . close ( ) ; return result ; } | Retrieves whether this database is in read - only mode . | 58 | 13 |
154,902 | private StringBuffer toQueryPrefixNoSelect ( String t ) { StringBuffer sb = new StringBuffer ( 255 ) ; return sb . append ( t ) . append ( whereTrue ) ; } | Retrieves < ; expression> ; WHERE 1 = 1 in string | 42 | 16 |
154,903 | public static ConstantValueExpression makeExpression ( VoltType dataType , String value ) { ConstantValueExpression constantExpr = new ConstantValueExpression ( ) ; constantExpr . setValueType ( dataType ) ; constantExpr . setValue ( value ) ; return constantExpr ; } | Create a new CVE for a given type and value | 63 | 10 |
154,904 | Result executeUpdateStatement ( Session session ) { int count = 0 ; Expression [ ] colExpressions = updateExpressions ; HashMappedList rowset = new HashMappedList ( ) ; Type [ ] colTypes = baseTable . getColumnTypes ( ) ; RangeIteratorBase it = RangeVariable . getIterator ( session , targetRangeVariables ) ; Expression... | Executes an UPDATE statement . It is assumed that the argument is of the correct type . | 365 | 18 |
154,905 | Result executeMergeStatement ( Session session ) { Result resultOut = null ; RowSetNavigator generatedNavigator = null ; PersistentStore store = session . sessionData . getRowStore ( baseTable ) ; if ( generatedIndexes != null ) { resultOut = Result . newUpdateCountResult ( generatedResultMetaData , 0 ) ; generatedNavi... | Executes a MERGE statement . It is assumed that the argument is of the correct type . | 644 | 19 |
154,906 | Result executeDeleteStatement ( Session session ) { int count = 0 ; RowSetNavigatorLinkedList oldRows = new RowSetNavigatorLinkedList ( ) ; RangeIterator it = RangeVariable . getIterator ( session , targetRangeVariables ) ; while ( it . next ( ) ) { Row currentRow = it . getCurrentRow ( ) ; oldRows . add ( currentRow )... | Executes a DELETE statement . It is assumed that the argument is of the correct type . | 140 | 20 |
154,907 | int delete ( Session session , Table table , RowSetNavigator oldRows ) { if ( table . fkMainConstraints . length == 0 ) { deleteRows ( session , table , oldRows ) ; oldRows . beforeFirst ( ) ; if ( table . hasTrigger ( Trigger . DELETE_AFTER ) ) { table . fireAfterTriggers ( session , Trigger . DELETE_AFTER , oldRows )... | Highest level multiple row delete method . Corresponds to an SQL DELETE . | 553 | 17 |
154,908 | static void mergeUpdate ( HashMappedList rowSet , Row row , Object [ ] newData , int [ ] cols ) { Object [ ] data = ( Object [ ] ) rowSet . get ( row ) ; if ( data != null ) { for ( int j = 0 ; j < cols . length ; j ++ ) { data [ cols [ j ] ] = newData [ cols [ j ] ] ; } } else { rowSet . add ( row , newData ) ; } } | Merges a triggered change with a previous triggered change or adds to list . | 107 | 15 |
154,909 | static boolean mergeKeepUpdate ( Session session , HashMappedList rowSet , int [ ] cols , Type [ ] colTypes , Row row , Object [ ] newData ) { Object [ ] data = ( Object [ ] ) rowSet . get ( row ) ; if ( data != null ) { if ( IndexAVL . compareRows ( row . getData ( ) , newData , cols , colTypes ) != 0 && IndexAVL . co... | Merge the full triggered change with the updated row or add to list . Return false if changes conflict . | 187 | 21 |
154,910 | protected ExportRowData decodeRow ( byte [ ] rowData ) throws IOException { ExportRow row = ExportRow . decodeRow ( m_legacyRow , getPartition ( ) , m_startTS , rowData ) ; return new ExportRowData ( row . values , row . partitionValue , row . partitionId ) ; } | Decode a byte array of row data into ExportRowData | 70 | 12 |
154,911 | public boolean writeRow ( Object row [ ] , CSVWriter writer , boolean skipinternal , BinaryEncoding binaryEncoding , SimpleDateFormat dateFormatter ) { int firstfield = getFirstField ( skipinternal ) ; try { String [ ] fields = new String [ m_tableSchema . size ( ) - firstfield ] ; for ( int i = firstfield ; i < m_tabl... | This is for legacy connector . | 379 | 6 |
154,912 | public final int setPartitionColumnName ( String partitionColumnName ) { if ( partitionColumnName == null || partitionColumnName . trim ( ) . isEmpty ( ) ) { return PARTITION_ID_INDEX ; } int idx = - 1 ; for ( String name : m_source . columnNames ) { if ( name . equalsIgnoreCase ( partitionColumnName ) ) { idx = m_sour... | Used for override of column for partitioning . This is for legacy connector only . | 195 | 16 |
154,913 | public static void registerShutdownHook ( int priority , boolean runOnCrash , Runnable action ) { m_instance . addHook ( priority , runOnCrash , action ) ; //Any hook registered lets print crash messsage. ShutdownHooks . m_crashMessage = true ; } | Register an action to be run when the JVM exits . | 64 | 12 |
154,914 | SocketAddress getRemoteSocketAddress ( ) { // a lot could go wrong here, so rather than put in a bunch of code // to check for nulls all down the chain let's do it the simple // yet bulletproof way try { return ( ( SocketChannel ) sendThread . sockKey . channel ( ) ) . socket ( ) . getRemoteSocketAddress ( ) ; } catch ... | Returns the address to which the socket is connected . | 92 | 10 |
154,915 | SocketAddress getLocalSocketAddress ( ) { // a lot could go wrong here, so rather than put in a bunch of code // to check for nulls all down the chain let's do it the simple // yet bulletproof way try { return ( ( SocketChannel ) sendThread . sockKey . channel ( ) ) . socket ( ) . getLocalSocketAddress ( ) ; } catch ( ... | Returns the local address to which the socket is bound . | 92 | 11 |
154,916 | private static String makeThreadName ( String suffix ) { String name = Thread . currentThread ( ) . getName ( ) . replaceAll ( "-EventThread" , "" ) ; return name + suffix ; } | Guard against creating - EventThread - EventThread - EventThread - ... thread names when ZooKeeper object is being created from within a watcher . See ZOOKEEPER - 795 for details . | 43 | 41 |
154,917 | public void commit ( Xid xid , boolean onePhase ) throws XAException { // Comment out following debug statement before public release: System . err . println ( "Performing a " + ( onePhase ? "1-phase" : "2-phase" ) + " commit on " + xid ) ; JDBCXAResource resource = xaDataSource . getResource ( xid ) ; if ( resource ==... | Per the JDBC 3 . 0 spec this commits the transaction for the specified Xid not necessarily for the transaction associated with this XAResource object . | 128 | 31 |
154,918 | public boolean isSameRM ( XAResource xares ) throws XAException { if ( ! ( xares instanceof JDBCXAResource ) ) { return false ; } return xaDataSource == ( ( JDBCXAResource ) xares ) . getXADataSource ( ) ; } | Stub . See implementation comment in the method for why this is not implemented yet . | 67 | 17 |
154,919 | public int prepare ( Xid xid ) throws XAException { validateXid ( xid ) ; /** * @todo: This is where the real 2-phase work should be done to * determine if a commit done here would succeed or not. */ /** * @todo: May improve performance to return XA_RDONLY whenever * possible, but I don't know. * Could determine this b... | Vote on whether to commit the global transaction . | 198 | 9 |
154,920 | public void rollback ( Xid xid ) throws XAException { JDBCXAResource resource = xaDataSource . getResource ( xid ) ; if ( resource == null ) { throw new XAException ( "The XADataSource has no such Xid in prepared state: " + xid ) ; } resource . rollbackThis ( ) ; } | Per the JDBC 3 . 0 spec this rolls back the transaction for the specified Xid not necessarily for the transaction associated with this XAResource object . | 79 | 32 |
154,921 | private void processValue ( String value ) { // this Option has a separator character if ( hasValueSeparator ( ) ) { // get the separator character char sep = getValueSeparator ( ) ; // store the index for the value separator int index = value . indexOf ( sep ) ; // while there are more value separators while ( index !... | Processes the value . If this Option has a value separator the value will have to be parsed into individual tokens . When n - 1 tokens have been processed and there are more value separators in the value parsing is ceased and the remaining characters are added as a single token . | 169 | 56 |
154,922 | public boolean enterWhenUninterruptibly ( Guard guard , long time , TimeUnit unit ) { final long timeoutNanos = toSafeNanos ( time , unit ) ; if ( guard . monitor != this ) { throw new IllegalMonitorStateException ( ) ; } final ReentrantLock lock = this . lock ; long startTime = 0L ; boolean signalBeforeWaiting = lock ... | Enters this monitor when the guard is satisfied . Blocks at most the given time including both the time to acquire the lock and the time to wait for the guard to be satisfied . | 387 | 36 |
154,923 | public boolean enterIfInterruptibly ( Guard guard , long time , TimeUnit unit ) throws InterruptedException { if ( guard . monitor != this ) { throw new IllegalMonitorStateException ( ) ; } final ReentrantLock lock = this . lock ; if ( ! lock . tryLock ( time , unit ) ) { return false ; } boolean satisfied = false ; tr... | Enters this monitor if the guard is satisfied . Blocks at most the given time acquiring the lock but does not wait for the guard to be satisfied and may be interrupted . | 108 | 34 |
154,924 | public boolean waitFor ( Guard guard , long time , TimeUnit unit ) throws InterruptedException { final long timeoutNanos = toSafeNanos ( time , unit ) ; if ( ! ( ( guard . monitor == this ) & lock . isHeldByCurrentThread ( ) ) ) { throw new IllegalMonitorStateException ( ) ; } if ( guard . isSatisfied ( ) ) { return tr... | Waits for the guard to be satisfied . Waits at most the given time and may be interrupted . May be called only by a thread currently occupying this monitor . | 120 | 33 |
154,925 | public void ack ( long hsId , boolean isEOS , long targetId , int blockIndex ) { rejoinLog . debug ( "Queue ack for hsId:" + hsId + " isEOS: " + isEOS + " targetId:" + targetId + " blockIndex: " + blockIndex ) ; m_blockIndices . offer ( Pair . of ( hsId , new RejoinDataAckMessage ( isEOS , targetId , blockIndex ) ) ) ;... | Ack with a positive block index . | 111 | 8 |
154,926 | @ Override public boolean absolute ( int row ) throws SQLException { checkClosed ( ) ; if ( rowCount == 0 ) { if ( row == 0 ) { return true ; } return false ; } if ( row == 0 ) { beforeFirst ( ) ; return true ; } if ( rowCount + row < 0 ) { beforeFirst ( ) ; return false ; } if ( row > rowCount ) { cursorPosition = Pos... | Moves the cursor to the given row number in this ResultSet object . | 247 | 15 |
154,927 | @ Override public int findColumn ( String columnLabel ) throws SQLException { checkClosed ( ) ; try { return table . getColumnIndex ( columnLabel ) + 1 ; } catch ( IllegalArgumentException iax ) { throw SQLError . get ( iax , SQLError . COLUMN_NOT_FOUND , columnLabel ) ; } catch ( Exception x ) { throw SQLError . get (... | Maps the given ResultSet column label to its ResultSet column index . | 101 | 14 |
154,928 | @ Override public BigDecimal getBigDecimal ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { final VoltType type = table . getColumnType ( columnIndex - 1 ) ; BigDecimal decimalValue = null ; switch ( type ) { case TINYINT : decimalValue = new BigDecimal ( table . getLong ( columnIndex... | ResultSet object as a java . math . BigDecimal with full precision . | 287 | 16 |
154,929 | @ Override public InputStream getBinaryStream ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { return new ByteArrayInputStream ( table . getStringAsBytes ( columnIndex - 1 ) ) ; } catch ( Exception x ) { throw SQLError . get ( x ) ; } } | ResultSet object as a stream of uninterpreted bytes . | 73 | 12 |
154,930 | @ Override public Blob getBlob ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { return new SerialBlob ( table . getStringAsBytes ( columnIndex - 1 ) ) ; } catch ( Exception x ) { throw SQLError . get ( x ) ; } } | ResultSet object as a Blob object in the Java programming language . | 71 | 14 |
154,931 | @ Override public boolean getBoolean ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; // TODO: Tempting to apply a != 0 operation on numbers and // .equals("true") on strings, but... hacky try { return ( new Long ( table . getLong ( columnIndex - 1 ) ) ) . intValue ( ) == 1 ; } catch ( Exce... | ResultSet object as a boolean in the Java programming language . | 105 | 12 |
154,932 | @ Override public byte getByte ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { Long longValue = getPrivateInteger ( columnIndex ) ; if ( longValue > Byte . MAX_VALUE || longValue < Byte . MIN_VALUE ) { throw new SQLException ( "Value out of byte range" ) ; } return longValue . byteVa... | ResultSet object as a byte in the Java programming language . | 108 | 12 |
154,933 | @ Override public byte [ ] getBytes ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { if ( table . getColumnType ( columnIndex - 1 ) == VoltType . STRING ) return table . getStringAsBytes ( columnIndex - 1 ) ; else if ( table . getColumnType ( columnIndex - 1 ) == VoltType . VARBINARY ... | ResultSet object as a byte array in the Java programming language . | 174 | 13 |
154,934 | @ Override public Clob getClob ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { return new SerialClob ( table . getString ( columnIndex - 1 ) . toCharArray ( ) ) ; } catch ( Exception x ) { throw SQLError . get ( x ) ; } } | ResultSet object as a Clob object in the Java programming language . | 75 | 14 |
154,935 | @ Override public float getFloat ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { final VoltType type = table . getColumnType ( columnIndex - 1 ) ; Double doubleValue = null ; switch ( type ) { case TINYINT : doubleValue = new Double ( table . getLong ( columnIndex - 1 ) ) ; break ; c... | ResultSet object as a float in the Java programming language . | 329 | 12 |
154,936 | @ Override public int getInt ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { Long longValue = getPrivateInteger ( columnIndex ) ; if ( longValue > Integer . MAX_VALUE || longValue < Integer . MIN_VALUE ) { throw new SQLException ( "Value out of int range" ) ; } return longValue . int... | ResultSet object as an int in the Java programming language . | 108 | 12 |
154,937 | @ Override public long getLong ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { Long longValue = getPrivateInteger ( columnIndex ) ; return longValue ; } catch ( Exception x ) { throw SQLError . get ( x ) ; } } | ResultSet object as a long in the Java programming language . | 65 | 12 |
154,938 | @ Override public Reader getNCharacterStream ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { String value = table . getString ( columnIndex - 1 ) ; if ( ! wasNull ( ) ) return new StringReader ( value ) ; return null ; } catch ( Exception x ) { throw SQLError . get ( x ) ; } } | ResultSet object as a java . io . Reader object . | 84 | 12 |
154,939 | @ Override public NClob getNClob ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { return new JDBC4NClob ( table . getString ( columnIndex - 1 ) . toCharArray ( ) ) ; } catch ( Exception x ) { throw SQLError . get ( x ) ; } } | ResultSet object as a NClob object in the Java programming language . | 80 | 15 |
154,940 | @ Override public Object getObject ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { VoltType type = table . getColumnType ( columnIndex - 1 ) ; if ( type == VoltType . TIMESTAMP ) return getTimestamp ( columnIndex ) ; else return table . get ( columnIndex - 1 , type ) ; } catch ( Exce... | ResultSet object as an Object in the Java programming language . | 99 | 12 |
154,941 | @ Override public short getShort ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; try { Long longValue = getPrivateInteger ( columnIndex ) ; if ( longValue > Short . MAX_VALUE || longValue < Short . MIN_VALUE ) { throw new SQLException ( "Value out of short range" ) ; } return longValue . s... | ResultSet object as a short in the Java programming language . | 108 | 12 |
154,942 | @ Override @ Deprecated public InputStream getUnicodeStream ( int columnIndex ) throws SQLException { checkColumnBounds ( columnIndex ) ; throw SQLError . noSupport ( ) ; } | Deprecated . use getCharacterStream in place of getUnicodeStream | 46 | 15 |
154,943 | @ Override @ Deprecated public InputStream getUnicodeStream ( String columnLabel ) throws SQLException { return getUnicodeStream ( findColumn ( columnLabel ) ) ; } | Deprecated . use getCharacterStream instead | 41 | 8 |
154,944 | @ Override public boolean last ( ) throws SQLException { checkClosed ( ) ; if ( rowCount == 0 ) { return false ; } try { if ( cursorPosition != Position . middle ) { cursorPosition = Position . middle ; table . resetRowPosition ( ) ; table . advanceToRow ( 0 ) ; } return table . advanceToRow ( rowCount - 1 ) ; } catch ... | Moves the cursor to the last row in this ResultSet object . | 102 | 14 |
154,945 | @ Override public boolean next ( ) throws SQLException { checkClosed ( ) ; if ( cursorPosition == Position . afterLast || table . getActiveRowIndex ( ) == rowCount - 1 ) { cursorPosition = Position . afterLast ; return false ; } if ( cursorPosition == Position . beforeFirst ) { cursorPosition = Position . middle ; } tr... | Moves the cursor forward one row from its current position . | 106 | 12 |
154,946 | @ Override public boolean previous ( ) throws SQLException { checkClosed ( ) ; if ( cursorPosition == Position . afterLast ) { return last ( ) ; } if ( cursorPosition == Position . beforeFirst || table . getActiveRowIndex ( ) <= 0 ) { beforeFirst ( ) ; return false ; } try { int tempRowIndex = table . getActiveRowIndex... | Moves the cursor to the previous row in this ResultSet object . | 135 | 14 |
154,947 | @ Override public boolean relative ( int rows ) throws SQLException { checkClosed ( ) ; if ( rowCount == 0 ) { return false ; } if ( cursorPosition == Position . afterLast && rows > 0 ) { return false ; } if ( cursorPosition == Position . beforeFirst && rows <= 0 ) { return false ; } if ( table . getActiveRowIndex ( ) ... | Moves the cursor a relative number of rows either positive or negative . | 316 | 14 |
154,948 | @ Override public void setFetchDirection ( int direction ) throws SQLException { if ( ( direction != FETCH_FORWARD ) && ( direction != FETCH_REVERSE ) && ( direction != FETCH_UNKNOWN ) ) throw SQLError . get ( SQLError . ILLEGAL_STATEMENT , direction ) ; this . fetchDirection = direction ; } | object will be processed . | 89 | 5 |
154,949 | @ Override public void updateAsciiStream ( String columnLabel , InputStream x , long length ) throws SQLException { throw SQLError . noSupport ( ) ; } | the specified number of bytes . | 40 | 6 |
154,950 | @ Override public void updateBlob ( String columnLabel , InputStream inputStream , long length ) throws SQLException { throw SQLError . noSupport ( ) ; } | have the specified number of bytes . | 39 | 7 |
154,951 | @ Override public void updateNClob ( String columnLabel , Reader reader , long length ) throws SQLException { throw SQLError . noSupport ( ) ; } | given number of characters long . | 38 | 6 |
154,952 | @ Override public void updateObject ( String columnLabel , Object x , int scaleOrLength ) throws SQLException { throw SQLError . noSupport ( ) ; } | Updates the designated column with an Object value . | 38 | 10 |
154,953 | @ Override public boolean wasNull ( ) throws SQLException { checkClosed ( ) ; try { return table . wasNull ( ) ; } catch ( Exception x ) { throw SQLError . get ( x ) ; } } | Reports whether the last column read had a value of SQL NULL . | 51 | 13 |
154,954 | public Object [ ] getRowData ( ) throws SQLException { Object [ ] row = new Object [ columnCount ] ; for ( int i = 1 ; i < columnCount + 1 ; i ++ ) { row [ i - 1 ] = getObject ( i ) ; } return row ; } | Retrieve the raw row data as an array | 63 | 9 |
154,955 | void transformAndQueue ( T event , long systemCurrentTimeMillis ) { // if you're super unlucky, this blows up the stack if ( rand . nextDouble ( ) < 0.05 ) { // duplicate this message (note recursion means maybe more than duped) transformAndQueue ( event , systemCurrentTimeMillis ) ; } long delayms = nextZipfDelay ( ) ... | Possibly duplicate and delay by some random amount . | 100 | 10 |
154,956 | @ Override public T next ( long systemCurrentTimeMillis ) { // drain all the waiting messages from the source (up to 10k) while ( delayed . size ( ) < 10000 ) { T event = source . next ( systemCurrentTimeMillis ) ; if ( event == null ) { break ; } transformAndQueue ( event , systemCurrentTimeMillis ) ; } return delayed... | Return the next event that is safe for delivery or null if there are no safe objects to deliver . | 93 | 20 |
154,957 | public int compareNames ( SchemaColumn that ) { String thatTbl ; String thisTbl ; if ( m_tableAlias != null && that . m_tableAlias != null ) { thisTbl = m_tableAlias ; thatTbl = that . m_tableAlias ; } else { thisTbl = m_tableName ; thatTbl = that . m_tableName ; } int tblCmp = nullSafeStringCompareTo ( thisTbl , thatT... | Compare this schema column to the input . | 213 | 8 |
154,958 | public SchemaColumn copyAndReplaceWithTVE ( int colIndex ) { TupleValueExpression newTve ; if ( m_expression instanceof TupleValueExpression ) { newTve = ( TupleValueExpression ) m_expression . clone ( ) ; newTve . setColumnIndex ( colIndex ) ; } else { newTve = new TupleValueExpression ( m_tableName , m_tableAlias , m... | Return a copy of this SchemaColumn but with the input expression replaced by an appropriate TupleValueExpression . | 151 | 23 |
154,959 | @ Override synchronized void offer ( TransactionTask task ) { Iv2Trace . logTransactionTaskQueueOffer ( task ) ; m_backlog . addLast ( task ) ; taskQueueOffer ( ) ; } | Stick this task in the backlog . Many network threads may be racing to reach here synchronize to serialize queue order . Always returns true in this case side effect of extending TransactionTaskQueue . | 46 | 39 |
154,960 | private boolean aquireFileLock ( ) { // PRE: // // raf is never null and is never closed upon entry. // // Rhetorical question to self: How does one tell if a RandomAccessFile // is closed, short of invoking an operation and getting an IOException // the says its closed (assuming you can control the Locale of the error... | does the real work of aquiring the FileLock | 601 | 10 |
154,961 | private boolean releaseFileLock ( ) { // Note: Closing the super class RandomAccessFile has the // side-effect of closing the file lock's FileChannel, // so we do not deal with this here. boolean success = false ; if ( this . fileLock == null ) { success = true ; } else { try { this . fileLock . release ( ) ; success =... | does the real work of releasing the FileLock | 103 | 9 |
154,962 | protected Object addOrRemove ( int intKey , Object objectValue , boolean remove ) { int hash = intKey ; int index = hashIndex . getHashIndex ( hash ) ; int lookup = hashIndex . hashTable [ index ] ; int lastLookup = - 1 ; Object returnValue = null ; for ( ; lookup >= 0 ; lastLookup = lookup , lookup = hashIndex . getNe... | type - specific method for adding or removing keys in int - > Object maps | 392 | 15 |
154,963 | protected Object removeObject ( Object objectKey , boolean removeRow ) { if ( objectKey == null ) { return null ; } int hash = objectKey . hashCode ( ) ; int index = hashIndex . getHashIndex ( hash ) ; int lookup = hashIndex . hashTable [ index ] ; int lastLookup = - 1 ; Object returnValue = null ; for ( ; lookup >= 0 ... | type specific method for Object sets or Object - > Object maps | 198 | 12 |
154,964 | public void clear ( ) { if ( hashIndex . modified ) { accessCount = 0 ; accessMin = accessCount ; hasZeroKey = false ; zeroKeyIndex = - 1 ; clearElementArrays ( 0 , hashIndex . linkTable . length ) ; hashIndex . clear ( ) ; if ( minimizeOnEmpty ) { rehash ( initialCapacity ) ; } } } | Clear the map completely . | 79 | 5 |
154,965 | public int getAccessCountCeiling ( int count , int margin ) { return ArrayCounter . rank ( accessTable , hashIndex . newNodePointer , count , accessMin + 1 , accessCount , margin ) ; } | Return the max accessCount value for count elements with the lowest access count . Always return at least accessMin + 1 | 47 | 23 |
154,966 | protected void clear ( int count , int margin ) { if ( margin < 64 ) { margin = 64 ; } int maxlookup = hashIndex . newNodePointer ; int accessBase = getAccessCountCeiling ( count , margin ) ; for ( int lookup = 0 ; lookup < maxlookup ; lookup ++ ) { Object o = objectKeyTable [ lookup ] ; if ( o != null && accessTable [... | Clear approximately count elements from the map starting with those with low accessTable ranking . | 112 | 16 |
154,967 | public void materialise ( Session session ) { PersistentStore store ; // table constructors if ( isDataExpression ) { store = session . sessionData . getSubqueryRowStore ( table ) ; dataExpression . insertValuesIntoSubqueryTable ( session , store ) ; return ; } Result result = queryExpression . getResult ( session , is... | Fills the table with a result set | 167 | 8 |
154,968 | static public void encodeDecimal ( final FastSerializer fs , BigDecimal value ) throws IOException { fs . write ( ( byte ) VoltDecimalHelper . kDefaultScale ) ; fs . write ( ( byte ) 16 ) ; fs . write ( VoltDecimalHelper . serializeBigDecimal ( value ) ) ; } | Read a decimal according to the Export encoding specification . | 69 | 10 |
154,969 | static public void encodeGeographyPoint ( final FastSerializer fs , GeographyPointValue value ) throws IOException { final int length = GeographyPointValue . getLengthInBytes ( ) ; ByteBuffer bb = ByteBuffer . allocate ( length ) ; bb . order ( ByteOrder . nativeOrder ( ) ) ; value . flattenToBuffer ( bb ) ; byte [ ] a... | Encode a GEOGRAPHY_POINT according to the Export encoding specification . | 107 | 18 |
154,970 | static public void encodeGeography ( final FastSerializer fs , GeographyValue value ) throws IOException { ByteBuffer bb = ByteBuffer . allocate ( value . getLengthInBytes ( ) ) ; bb . order ( ByteOrder . nativeOrder ( ) ) ; value . flattenToBuffer ( bb ) ; byte [ ] array = bb . array ( ) ; fs . writeInt ( array . leng... | Encode a GEOGRAPHY according to the Export encoding specification . | 97 | 15 |
154,971 | @ SuppressWarnings ( "unchecked" ) private ImmutableMap < String , ProcedureRunnerNTGenerator > loadSystemProcedures ( boolean startup ) { ImmutableMap . Builder < String , ProcedureRunnerNTGenerator > builder = ImmutableMap . < String , ProcedureRunnerNTGenerator > builder ( ) ; Set < Entry < String , Config > > entry... | Load the system procedures . Optionally don t load UAC but use parameter instead . | 442 | 17 |
154,972 | @ SuppressWarnings ( "unchecked" ) synchronized void update ( CatalogContext catalogContext ) { CatalogMap < Procedure > procedures = catalogContext . database . getProcedures ( ) ; Map < String , ProcedureRunnerNTGenerator > runnerGeneratorMap = new TreeMap <> ( ) ; for ( Procedure procedure : procedures ) { if ( proc... | Refresh the NT procedures when the catalog changes . | 533 | 10 |
154,973 | synchronized void callProcedureNT ( final long ciHandle , final AuthUser user , final Connection ccxn , final boolean isAdmin , final boolean ntPriority , final StoredProcedureInvocation task ) { // If paused, stuff a record of the invocation into a queue that gets // drained when un-paused. We're counting on regular u... | Invoke an NT procedure asynchronously on one of the exec services . | 744 | 15 |
154,974 | void handleCallbacksForFailedHosts ( final Set < Integer > failedHosts ) { for ( ProcedureRunnerNT runner : m_outstanding . values ( ) ) { runner . processAnyCallbacksFromFailedHosts ( failedHosts ) ; } } | For all - host NT procs use site failures to call callbacks for hosts that will obviously never respond . | 56 | 22 |
154,975 | private boolean isDefinedFunctionName ( String functionName ) { return FunctionForVoltDB . isFunctionNameDefined ( functionName ) || FunctionSQL . isFunction ( functionName ) || FunctionCustom . getFunctionId ( functionName ) != ID_NOT_DEFINED || ( null != m_schema . findChild ( "ud_function" , functionName ) ) ; } | Find out if the function is defined . It might be defined in the FunctionForVoltDB table . It also might be in the VoltXML . | 82 | 31 |
154,976 | public Object upper ( Session session , Object data ) { if ( data == null ) { return null ; } if ( typeCode == Types . SQL_CLOB ) { String result = ( ( ClobData ) data ) . getSubString ( session , 0 , ( int ) ( ( ClobData ) data ) . length ( session ) ) ; result = collation . toUpperCase ( result ) ; ClobData clob = se... | Memory limits apply to Upper and Lower implementations with Clob data | 139 | 12 |
154,977 | public void outputStartTime ( final long startTimeMsec ) { log . format ( Locale . US , "#[StartTime: %.3f (seconds since epoch), %s]\n" , startTimeMsec / 1000.0 , ( new Date ( startTimeMsec ) ) . toString ( ) ) ; } | Log a start time in the log . | 71 | 8 |
154,978 | public String latencyHistoReport ( ) { ByteArrayOutputStream baos = new ByteArrayOutputStream ( ) ; PrintStream pw = null ; try { pw = new PrintStream ( baos , false , Charsets . UTF_8 . name ( ) ) ; } catch ( UnsupportedEncodingException e ) { Throwables . propagate ( e ) ; } //Get a latency report in milliseconds m_l... | Generate a human - readable report of latencies in the form of a histogram . Latency is in milliseconds | 133 | 23 |
154,979 | public synchronized BBContainer getNextChunk ( ) throws IOException { if ( m_chunkReaderException != null ) { throw m_chunkReaderException ; } if ( ! m_hasMoreChunks . get ( ) ) { final Container c = m_availableChunks . poll ( ) ; return c ; } if ( m_chunkReader == null ) { m_chunkReader = new ChunkReader ( ) ; m_chunk... | Will get the next chunk of the table that is just over the chunk size | 257 | 15 |
154,980 | protected void validateSpecifiedUserAndPassword ( String user , String password ) throws SQLException { String configuredUser = connProperties . getProperty ( "user" ) ; String configuredPassword = connProperties . getProperty ( "password" ) ; if ( ( ( user == null && configuredUser != null ) || ( user != null && confi... | Throws a SQLException if given user name or password are not same as those configured for this object . | 163 | 23 |
154,981 | public Object setConnectionProperty ( String name , String value ) { return connProperties . setProperty ( name , value ) ; } | Sets JDBC Connection Properties to be used when physical connections are obtained for the pool . | 27 | 18 |
154,982 | @ Override public void start ( boolean block ) throws InterruptedException , ExecutionException { Future < ? > task = m_es . submit ( new ParentEvent ( null ) ) ; if ( block ) { task . get ( ) ; } } | Initialize and start watching the cache . | 51 | 8 |
154,983 | public Object getAggregatedValue ( Session session , Object currValue ) { if ( currValue == null ) { // A VoltDB extension APPROX_COUNT_DISTINCT return opType == OpTypes . COUNT || opType == OpTypes . APPROX_COUNT_DISTINCT ? ValuePool . INTEGER_0 : null ; /* disable 2 lines... return opType == OpTypes.COUNT ? ValuePool... | Get the result of a SetFunction or an ordinary value | 136 | 11 |
154,984 | private boolean tableListIncludesReadOnlyView ( List < Table > tableList ) { for ( Table table : tableList ) { if ( table . getMaterializer ( ) != null && ! TableType . isStream ( table . getMaterializer ( ) . getTabletype ( ) ) ) { return true ; } } return false ; } | Return true if tableList includes at least one matview . | 70 | 12 |
154,985 | private boolean tableListIncludesExportOnly ( List < Table > tableList ) { // list of all export tables (assume uppercase) NavigableSet < String > exportTables = CatalogUtil . getExportTableNames ( m_catalogDb ) ; // this loop is O(number-of-joins * number-of-export-tables) // which seems acceptable if not great. Proba... | Return true if tableList includes at least one export table . | 153 | 12 |
154,986 | private ParsedResultAccumulator getBestCostPlanForEphemeralScans ( List < StmtEphemeralTableScan > scans ) { int nextPlanId = m_planSelector . m_planId ; boolean orderIsDeterministic = true ; boolean hasSignificantOffsetOrLimit = false ; String contentNonDeterminismMessage = null ; for ( StmtEphemeralTableScan scan : s... | Generate best cost plans for a list of derived tables which we call FROM sub - queries and common table queries . | 377 | 23 |
154,987 | private boolean getBestCostPlanForExpressionSubQueries ( Set < AbstractExpression > subqueryExprs ) { int nextPlanId = m_planSelector . m_planId ; for ( AbstractExpression expr : subqueryExprs ) { assert ( expr instanceof SelectSubqueryExpression ) ; if ( ! ( expr instanceof SelectSubqueryExpression ) ) { continue ; //... | Generate best cost plans for each Subquery expression from the list | 311 | 13 |
154,988 | private CompiledPlan getNextPlan ( ) { CompiledPlan retval ; AbstractParsedStmt nextStmt = null ; if ( m_parsedSelect != null ) { nextStmt = m_parsedSelect ; retval = getNextSelectPlan ( ) ; } else if ( m_parsedInsert != null ) { nextStmt = m_parsedInsert ; retval = getNextInsertPlan ( ) ; } else if ( m_parsedDelete !=... | Generate a unique and correct plan for the current SQL statement context . This method gets called repeatedly until it returns null meaning there are no more plans . | 374 | 30 |
154,989 | private void connectChildrenBestPlans ( AbstractPlanNode parentPlan ) { if ( parentPlan instanceof AbstractScanPlanNode ) { AbstractScanPlanNode scanNode = ( AbstractScanPlanNode ) parentPlan ; StmtTableScan tableScan = scanNode . getTableScan ( ) ; if ( tableScan instanceof StmtSubqueryScan ) { CompiledPlan bestCostPl... | For each sub - query or CTE node in the plan tree attach the corresponding plans to the parent node . | 466 | 22 |
154,990 | private boolean needProjectionNode ( AbstractPlanNode root ) { if ( ! root . planNodeClassNeedsProjectionNode ( ) ) { return false ; } // If there is a complexGroupby at his point, it means that // display columns contain all the order by columns and // does not require another projection node on top of sort node. // I... | Return true if the plan referenced by root node needs a projection node appended to the top . | 200 | 19 |
154,991 | static private boolean deleteIsTruncate ( ParsedDeleteStmt stmt , AbstractPlanNode plan ) { if ( ! ( plan instanceof SeqScanPlanNode ) ) { return false ; } // Assume all index scans have filters in this context, so only consider seq scans. SeqScanPlanNode seqScanNode = ( SeqScanPlanNode ) plan ; if ( seqScanNode . getP... | Returns true if this DELETE can be executed in the EE as a truncate operation | 118 | 18 |
154,992 | private static AbstractPlanNode addCoordinatorToDMLNode ( AbstractPlanNode dmlRoot , boolean isReplicated ) { dmlRoot = SubPlanAssembler . addSendReceivePair ( dmlRoot ) ; AbstractPlanNode sumOrLimitNode ; if ( isReplicated ) { // Replicated table DML result doesn't need to be summed. All partitions should // modify th... | Add a receive node a sum or limit node and a send node to the given DML node . If the DML target is a replicated table it will add a limit node otherwise it adds a sum node . | 652 | 42 |
154,993 | private static OrderByPlanNode buildOrderByPlanNode ( List < ParsedColInfo > cols ) { OrderByPlanNode n = new OrderByPlanNode ( ) ; for ( ParsedColInfo col : cols ) { n . addSortExpression ( col . m_expression , col . m_ascending ? SortDirectionType . ASC : SortDirectionType . DESC ) ; } return n ; } | Given a list of ORDER BY columns construct and return an OrderByPlanNode . | 90 | 16 |
154,994 | private static AbstractPlanNode handleOrderBy ( AbstractParsedStmt parsedStmt , AbstractPlanNode root ) { assert ( parsedStmt instanceof ParsedSelectStmt || parsedStmt instanceof ParsedUnionStmt || parsedStmt instanceof ParsedDeleteStmt ) ; if ( ! isOrderByNodeRequired ( parsedStmt , root ) ) { return root ; } OrderByP... | Create an order by node as required by the statement and make it a parent of root . | 126 | 18 |
154,995 | private AbstractPlanNode handleSelectLimitOperator ( AbstractPlanNode root ) { // The coordinator's top limit graph fragment for a MP plan. // If planning "order by ... limit", getNextSelectPlan() // will have already added an order by to the coordinator frag. // This is the only limit node in a SP plan LimitPlanNode t... | Add a limit pushed - down if possible and return the new root . | 663 | 14 |
154,996 | private AbstractPlanNode handleUnionLimitOperator ( AbstractPlanNode root ) { // The coordinator's top limit graph fragment for a MP plan. // If planning "order by ... limit", getNextUnionPlan() // will have already added an order by to the coordinator frag. // This is the only limit node in a SP plan LimitPlanNode top... | Add a limit and return the new root . | 108 | 9 |
154,997 | private AbstractPlanNode inlineLimitOperator ( AbstractPlanNode root , LimitPlanNode topLimit ) { if ( isInlineLimitPlanNodePossible ( root ) ) { root . addInlinePlanNode ( topLimit ) ; } else if ( root instanceof ProjectionPlanNode && isInlineLimitPlanNodePossible ( root . getChild ( 0 ) ) ) { // In future, inlined th... | Inline Limit plan node if possible | 147 | 7 |
154,998 | static private boolean isInlineLimitPlanNodePossible ( AbstractPlanNode pn ) { if ( pn instanceof OrderByPlanNode || pn . getPlanNodeType ( ) == PlanNodeType . AGGREGATE ) { return true ; } return false ; } | Inline limit plan node can be applied with ORDER BY node and serial aggregation node | 58 | 16 |
154,999 | private boolean switchToIndexScanForGroupBy ( AbstractPlanNode candidate , IndexGroupByInfo gbInfo ) { if ( ! m_parsedSelect . isGrouped ( ) ) { return false ; } if ( candidate instanceof IndexScanPlanNode ) { calculateIndexGroupByInfo ( ( IndexScanPlanNode ) candidate , gbInfo ) ; if ( gbInfo . m_coveredGroupByColumns... | For a seqscan feeding a GROUP BY consider substituting an IndexScan that pre - sorts by the GROUP BY keys . If a candidate is already an indexscan simply calculate GROUP BY column coverage | 392 | 38 |
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