Uses of Class
org.apache.calcite.rel.RelVisitor

Packages that use RelVisitor

Package	Description
org.apache.calcite.interpreter	Provides an implementation of relational expressions using an interpreter.
org.apache.calcite.plan	Defines interfaces for constructing rule-based optimizers of relational expressions.
org.apache.calcite.rel	Defines relational expressions.
org.apache.calcite.sql2rel	Translates a SQL parse tree to relational expression.

Uses of RelVisitor in org.apache.calcite.interpreter

Subclasses of RelVisitor in org.apache.calcite.interpreter

Modifier and Type	Class and Description
(package private) static class	Interpreter.CompilerImpl Walks over a tree of RelNode and, for each, creates a Node that can be executed in the interpreter.
static class	Nodes.CoreCompiler Extension to Interpreter.CompilerImpl that knows how to handle the core logical RelNodes.

Uses of RelVisitor in org.apache.calcite.plan

Subclasses of RelVisitor in org.apache.calcite.plan

Modifier and Type	Class and Description
private static class	RelOptUtil.VariableSetVisitor Visitor that finds all variables used but not stopped in an expression.
class	RelTraitPropagationVisitor RelTraitPropagationVisitor traverses a RelNode and its unregistered children, making sure that each has a full complement of traits.
private class	TableAccessMap.TableRelVisitor Visitor that finds all tables in a tree.

Methods in org.apache.calcite.plan with parameters of type RelVisitor

Modifier and Type	Method and Description
static void	RelOptUtil.go(RelVisitor visitor, RelNode p) Sets a RelVisitor going on a given relational expression, and returns the result.

Uses of RelVisitor in org.apache.calcite.rel

Methods in org.apache.calcite.rel with parameters of type RelVisitor

Modifier and Type	Method and Description
void	AbstractRelNode.childrenAccept(RelVisitor visitor)
void	RelNode.childrenAccept(RelVisitor visitor) Interacts with the RelVisitor in a visitor pattern to traverse the tree of relational expressions.
void	BiRel.childrenAccept(RelVisitor visitor)
void	SingleRel.childrenAccept(RelVisitor visitor)

Uses of RelVisitor in org.apache.calcite.sql2rel

Subclasses of RelVisitor in org.apache.calcite.sql2rel

Modifier and Type	Class and Description
private class	RelStructuredTypeFlattener.RewriteRelVisitor Visitor that flattens each relational expression in a tree.