org.matheclipse.core.patternmatching

Class HashedPatternRules

java.lang.Object

org.matheclipse.core.patternmatching.HashedPatternRules

public class HashedPatternRules
extends java.lang.Object

Data structure for HashedOrderlessMatcher. To set up a rule like
Sin[x]^2+Cos[x]^2 -> 1
use the method:
setUpHashRule("Sin[x_]^2", "Cos[x_]^2", "1")

Constructor Summary

Constructors

Constructor and Description
HashedPatternRules(IExpr lhsPattern1, IExpr lhsPattern2, IExpr rhsResult, boolean defaultHashCode)
HashedPatternRules(IExpr lhsPattern1, IExpr lhsPattern2, IExpr rhsResult, IExpr condition, boolean defaultHashCode)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
IExpr	getCondition() Get the Condition for this rule.
int	getHash1() Get the hash value for the first LHS expression.
int	getHash2() Get the hash value for the second LHS expression.
IExpr	getRHS()
DownRulesData	getRulesData() Get (or create) the rule {<first-left-hand-side>, <second-left-hand-side>}:=<right-hand-side>
int	hashCode()
boolean	isPattern2()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HashedPatternRules

public HashedPatternRules(IExpr lhsPattern1,
                          IExpr lhsPattern2,
                          IExpr rhsResult,
                          boolean defaultHashCode)

Parameters:

lhsPattern1 - first left-hand-side pattern

lhsPattern2 - second left-hand-side pattern

rhsResult - the right-hand-side result

defaultHashCode -

HashedPatternRules

public HashedPatternRules(IExpr lhsPattern1,
                          IExpr lhsPattern2,
                          IExpr rhsResult,
                          IExpr condition,
                          boolean defaultHashCode)

Parameters:

lhsPattern1 - first left-hand-side pattern

lhsPattern2 - second left-hand-side pattern

rhsResult - the right-hand-side result

condition - a condition test

defaultHashCode - TODO

Method Detail

getRHS

public IExpr getRHS()

Returns:

the right-hand-side result

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

getCondition

public IExpr getCondition()

Get the Condition for this rule.

Returns:

may return null.

getHash1

public int getHash1()

Get the hash value for the first LHS expression.

Returns:

the hash1

getHash2

public int getHash2()

Get the hash value for the second LHS expression.

Returns:

the hash2

isPattern2

public boolean isPattern2()

getRulesData

public DownRulesData getRulesData()

Get (or create) the rule {<first-left-hand-side>, <second-left-hand-side>}:=<right-hand-side>

Returns: