org.tikv.common.expression.visitor

Class RangeSetBuilder<C extends Comparable>

java.lang.Object

org.tikv.common.expression.Visitor<R,C>

org.tikv.common.expression.visitor.DefaultVisitor<com.google.common.collect.RangeSet<C>,Void>

org.tikv.common.expression.visitor.RangeSetBuilder<C>

Direct Known Subclasses:

IndexRangeSetBuilder, PrunedPartitionBuilder

public class RangeSetBuilder<C extends Comparable>
extends DefaultVisitor<com.google.common.collect.RangeSet<C>,Void>

A builder can build a range set of type C. It also extends DefaultVisitor and override and LogicalBinaryExpression's visit. For ComparisonBinaryExpression, we cannot just override it because IndexRangeSetBuilder and LogicalBinaryExpression has different behavior. A method visitComparisonBinaryExpr is added with extra boolean variable to control the behavior.

Constructor Summary

Constructors

Constructor and Description
RangeSetBuilder()

Method Summary

Modifier and Type	Method and Description
com.google.common.collect.RangeSet<C>	buildRange(Expression predicate)
protected com.google.common.collect.RangeSet<C>	process(Expression node, Void context)
protected com.google.common.collect.RangeSet<C>	visit(LogicalBinaryExpression node, Void context)

Methods inherited from class org.tikv.common.expression.visitor.DefaultVisitor

visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RangeSetBuilder

public RangeSetBuilder()

Method Detail

visit

protected com.google.common.collect.RangeSet<C> visit(LogicalBinaryExpression node,
                                                      Void context)

Overrides:

visit in class DefaultVisitor<com.google.common.collect.RangeSet<C extends Comparable>,Void>

buildRange

public com.google.common.collect.RangeSet<C> buildRange(Expression predicate)

process

protected com.google.common.collect.RangeSet<C> process(Expression node,
                                                        Void context)

Overrides:

process in class DefaultVisitor<com.google.common.collect.RangeSet<C extends Comparable>,Void>