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java.lang.Objectorg.apache.commons.math3.analysis.integration.gauss.BaseRuleFactory<T>
T
- Type of the number used to represent the points and weights of
the quadrature rules.public abstract class BaseRuleFactory<T extends java.lang.Number>
Base class for rules that determines the integration nodes and their
weights.
Subclasses must implement the computeRule
method.
Field Summary | |
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private java.util.Map<java.lang.Integer,Pair<T[],T[]>> |
pointsAndWeights
List of points and weights, indexed by the order of the rule. |
private java.util.Map<java.lang.Integer,Pair<double[],double[]>> |
pointsAndWeightsDouble
Cache for double-precision rules. |
Constructor Summary | |
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BaseRuleFactory()
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Method Summary | ||
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protected void |
addRule(Pair<T[],T[]> rule)
Stores a rule. |
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protected abstract Pair<T[],T[]> |
computeRule(int numberOfPoints)
Computes the rule for the given order. |
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private static
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convertToDouble(Pair<T[],T[]> rule)
Converts the from the actual Number type to double |
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Pair<double[],double[]> |
getRule(int numberOfPoints)
Gets a copy of the quadrature rule with the given number of integration points. |
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protected Pair<T[],T[]> |
getRuleInternal(int numberOfPoints)
Gets a rule. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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private final java.util.Map<java.lang.Integer,Pair<T extends java.lang.Number[],T extends java.lang.Number[]>> pointsAndWeights
private final java.util.Map<java.lang.Integer,Pair<double[],double[]>> pointsAndWeightsDouble
Constructor Detail |
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public BaseRuleFactory()
Method Detail |
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public Pair<double[],double[]> getRule(int numberOfPoints) throws NotStrictlyPositiveException
numberOfPoints
- Number of integration points.
NotStrictlyPositiveException
- if numberOfPoints < 1
.protected Pair<T[],T[]> getRuleInternal(int numberOfPoints) throws NotStrictlyPositiveException
numberOfPoints
- Order of the rule to be retrieved.
NotStrictlyPositiveException
- if numberOfPoints < 1
.protected void addRule(Pair<T[],T[]> rule)
rule
- Rule to be stored.
DimensionMismatchException
- if the elements of the pair do not
have the same length.protected abstract Pair<T[],T[]> computeRule(int numberOfPoints)
numberOfPoints
- Order of the rule to be computed.
private static <T extends java.lang.Number> Pair<double[],double[]> convertToDouble(Pair<T[],T[]> rule)
Number
type to double
T
- Type of the number used to represent the points and
weights of the quadrature rules.rule
- Points and weights.
double
s.
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