Java Doc for Level2OptimizerImpl.java in  » Database-DBMS » db-derby-10.2 » org » apache » derby » impl » sql » compile » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.impl.sql.compile   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.derby.impl.sql.compile.OptimizerImpl       org.apache.derby.impl.sql.compile.Level2OptimizerImpl Level2OptimizerImpl public class Level2OptimizerImpl extends OptimizerImpl (Code) This is the Level 2 Optimizer. Constructor Summary   Level2OptimizerImpl(OptimizableList optimizableList, OptimizablePredicateList predicateList, DataDictionary dDictionary, boolean ruleBasedOptimization, boolean noTimeout, boolean useStatistics, int maxMemoryPerTable, JoinStrategy[] joinStrategies, int tableLockThreshold, RequiredRowOrdering requiredRowOrdering, int numTablesInQuery, LanguageConnectionContext lcc)      Method Summary public  int getLevel()      public  CostEstimateImpl getNewCostEstimate(double theCost, double theRowCount, double theSingleScanRowCount)      public  CostEstimate newCostEstimate()      public  void trace(int traceFlag, int intParam1, int intParam2, double doubleParam, Object objectParam1)      Constructor Detail Level2OptimizerImpl Level2OptimizerImpl(OptimizableList optimizableList, OptimizablePredicateList predicateList, DataDictionary dDictionary, boolean ruleBasedOptimization, boolean noTimeout, boolean useStatistics, int maxMemoryPerTable, JoinStrategy[] joinStrategies, int tableLockThreshold, RequiredRowOrdering requiredRowOrdering, int numTablesInQuery, LanguageConnectionContext lcc) throws StandardException(Code) Method Detail getLevel public int getLevel()(Code) See Also:   Optimizer.getLevel See Also:    getNewCostEstimate public CostEstimateImpl getNewCostEstimate(double theCost, double theRowCount, double theSingleScanRowCount)(Code) newCostEstimate public CostEstimate newCostEstimate()(Code) See Also:   Optimizer.newCostEstimate See Also:    trace public void trace(int traceFlag, int intParam1, int intParam2, double doubleParam, Object objectParam1)(Code) Fields inherited from org.apache.derby.impl.sql.compile.OptimizerImpl protected JBitSet assignedTableMap(Code)(Java Doc) protected CostEstimateImpl bestCost(Code)(Java Doc) protected int[] bestJoinOrder(Code)(Java Doc) protected CostEstimateImpl currentCost(Code)(Java Doc) protected CostEstimateImpl currentSortAvoidanceCost(Code)(Java Doc) protected long currentTime(Code)(Java Doc) DataDictionary dDictionary(Code)(Java Doc) boolean desiredJoinOrderFound(Code)(Java Doc) CostEstimate finalCostEstimate(Code)(Java Doc) protected int joinPosition(Code)(Java Doc) protected int maxMemoryPerTable(Code)(Java Doc) JBitSet nonCorrelatedTableMap(Code)(Java Doc) int numOptimizables(Code)(Java Doc) int numTablesInQuery(Code)(Java Doc) protected OptimizableList optimizableList(Code)(Java Doc) protected boolean optimizerTrace(Code)(Java Doc) protected boolean optimizerTraceHtml(Code)(Java Doc) OptimizablePredicateList predicateList(Code)(Java Doc) protected int[] proposedJoinOrder(Code)(Java Doc) protected RequiredRowOrdering requiredRowOrdering(Code)(Java Doc) protected CostEstimate sortCost(Code)(Java Doc) protected boolean timeExceeded(Code)(Java Doc) protected double timeLimit(Code)(Java Doc) protected long timeOptimizationStarted(Code)(Java Doc) Methods inherited from org.apache.derby.impl.sql.compile.OptimizerImpl protected void addScopedPredicatesToList(PredicateList pList) throws StandardException(Code)(Java Doc) public void considerCost(Optimizable optimizable, OptimizablePredicateList predList, CostEstimate estimatedCost, CostEstimate outerCost) throws StandardException(Code)(Java Doc) public void costOptimizable(Optimizable optimizable, TableDescriptor td, ConglomerateDescriptor cd, OptimizablePredicateList predList, CostEstimate outerCost) throws StandardException(Code)(Java Doc) public void costPermutation() throws StandardException(Code)(Java Doc) public DataDictionary getDataDictionary()(Code)(Java Doc) public CostEstimate getFinalCost()(Code)(Java Doc) public JoinStrategy getJoinStrategy(int whichStrategy)(Code)(Java Doc) public JoinStrategy getJoinStrategy(String whichStrategy)(Code)(Java Doc) public int getLevel()(Code)(Java Doc) public int getMaxMemoryPerTable()(Code)(Java Doc) public CostEstimateImpl getNewCostEstimate(double theCost, double theRowCount, double theSingleScanRowCount)(Code)(Java Doc) public boolean getNextDecoratedPermutation() throws StandardException(Code)(Java Doc) public boolean getNextPermutation() throws StandardException(Code)(Java Doc) public int getNumberOfJoinStrategies()(Code)(Java Doc) public CostEstimate getOptimizedCost()(Code)(Java Doc) public void modifyAccessPaths() throws StandardException(Code)(Java Doc) public CostEstimate newCostEstimate()(Code)(Java Doc) public void prepForNextRound()(Code)(Java Doc) void pushPredicates(Optimizable curTable, JBitSet outerTables) throws StandardException(Code)(Java Doc) public void setOuterRows(double outerRows)(Code)(Java Doc) public int tableLockThreshold()(Code)(Java Doc) public void trace(int traceFlag, int intParam1, int intParam2, double doubleParam, Object objectParam1)(Code)(Java Doc) public double uniqueJoinWithOuterTable(OptimizablePredicateList predList) throws StandardException(Code)(Java Doc) protected void updateBestPlanMaps(short action, Object planKey) throws StandardException(Code)(Java Doc) public boolean useStatistics()(Code)(Java Doc) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)