Uses of Interface org.apache.derby.iapi.sql.compile.CostEstimate

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Uses of Interface
org.apache.derby.iapi.sql.compile.CostEstimate

Uses of CostEstimate in org.apache.derby.iapi.sql.compile

Methods in org.apache.derby.iapi.sql.compile that return CostEstimate

CostEstimate OptimizerFactory.getCostEstimate()
          Return a new CostEstimate.

CostEstimate Optimizer.newCostEstimate()
          Get a new CostEstimate object

CostEstimate Optimizer.getOptimizedCost()
          Get the estimated cost of the optimized query

CostEstimate Optimizable.optimizeIt(Optimizer optimizer, OptimizablePredicateList predList, CostEstimate outerCost, RowOrdering rowOrdering)
          Choose the best access path for this Optimizable.

CostEstimate Optimizable.estimateCost(OptimizablePredicateList predList, org.apache.derby.iapi.sql.dictionary.ConglomerateDescriptor cd, CostEstimate outerCost, Optimizer optimizer, RowOrdering rowOrdering)
          Estimate the cost of scanning this Optimizable using the given predicate list with the given conglomerate.

CostEstimate CostEstimate.add(CostEstimate addend, CostEstimate retval)
          Add this cost estimate to another one.

CostEstimate CostEstimate.multiply(double multiplicand, CostEstimate retval)
          Multiply this cost estimate by a scalar, non-dimensional number.

CostEstimate CostEstimate.divide(double divisor, CostEstimate retval)
          Divide this cost estimate by a scalar, non-dimensional number.

CostEstimate CostEstimate.cloneMe()
          Get a copy of this CostEstimate

CostEstimate AccessPath.getCostEstimate()
          Get the cost estimate for this AccessPath.

Methods in org.apache.derby.iapi.sql.compile with parameters of type CostEstimate

void RequiredRowOrdering.estimateCost(double estimatedInputRows, RowOrdering rowOrdering, CostEstimate resultCost)
          Estimate the cost of doing a sort for this row ordering, given the number of rows to be sorted.

void Optimizer.costOptimizable(Optimizable optimizable, org.apache.derby.iapi.sql.dictionary.TableDescriptor td, org.apache.derby.iapi.sql.dictionary.ConglomerateDescriptor cd, OptimizablePredicateList predList, CostEstimate outerCost)
          Cost the current Optimizable with the specified OPL.

void Optimizer.considerCost(Optimizable optimizable, OptimizablePredicateList predList, CostEstimate estimatedCost, CostEstimate outerCost)
          Consider the cost of the given optimizable.

CostEstimate Optimizable.optimizeIt(Optimizer optimizer, OptimizablePredicateList predList, CostEstimate outerCost, RowOrdering rowOrdering)
          Choose the best access path for this Optimizable.

CostEstimate Optimizable.estimateCost(OptimizablePredicateList predList, org.apache.derby.iapi.sql.dictionary.ConglomerateDescriptor cd, CostEstimate outerCost, Optimizer optimizer, RowOrdering rowOrdering)
          Estimate the cost of scanning this Optimizable using the given predicate list with the given conglomerate.

void JoinStrategy.estimateCost(Optimizable innerTable, OptimizablePredicateList predList, org.apache.derby.iapi.sql.dictionary.ConglomerateDescriptor cd, CostEstimate outerCost, Optimizer optimizer, CostEstimate costEstimate)
          Get the estimated cost for the join.

void CostEstimate.setCost(CostEstimate other)
          Copy the values from the given cost estimate into this one.

double CostEstimate.compare(CostEstimate other)
          Compare this cost estimate with the given cost estimate.

CostEstimate CostEstimate.add(CostEstimate addend, CostEstimate retval)
          Add this cost estimate to another one.

CostEstimate CostEstimate.multiply(double multiplicand, CostEstimate retval)
          Multiply this cost estimate by a scalar, non-dimensional number.

CostEstimate CostEstimate.divide(double divisor, CostEstimate retval)
          Divide this cost estimate by a scalar, non-dimensional number.

void AccessPath.setCostEstimate(CostEstimate costEstimate)
          Set the given cost estimate in this AccessPath.