org.apache.iceberg.expressions

Class ExpressionVisitors.BoundExpressionVisitor<R>

java.lang.Object

org.apache.iceberg.expressions.ExpressionVisitors.ExpressionVisitor<R>

org.apache.iceberg.expressions.ExpressionVisitors.BoundExpressionVisitor<R>

Enclosing class:

ExpressionVisitors

public abstract static class ExpressionVisitors.BoundExpressionVisitor<R>
extends ExpressionVisitors.ExpressionVisitor<R>

Constructor Summary

Constructors

Constructor and Description
BoundExpressionVisitor()

Method Summary

Modifier and Type	Method and Description
<T> R	eq(BoundReference<T> ref, Literal<T> lit)
<T> R	gt(BoundReference<T> ref, Literal<T> lit)
<T> R	gtEq(BoundReference<T> ref, Literal<T> lit)
<T> R	handleNonReference(Bound<T> term) Handle a non-reference value in this visitor.
<T> R	in(BoundReference<T> ref, java.util.Set<T> literalSet)
<T> R	isNaN(BoundReference<T> ref)
<T> R	isNull(BoundReference<T> ref)
<T> R	lt(BoundReference<T> ref, Literal<T> lit)
<T> R	ltEq(BoundReference<T> ref, Literal<T> lit)
<T> R	notEq(BoundReference<T> ref, Literal<T> lit)
<T> R	notIn(BoundReference<T> ref, java.util.Set<T> literalSet)
<T> R	notNaN(BoundReference<T> ref)
<T> R	notNull(BoundReference<T> ref)
<T> R	notStartsWith(BoundReference<T> ref, Literal<T> lit)
<T> R	predicate(BoundPredicate<T> pred)
<T> R	predicate(UnboundPredicate<T> pred)
<T> R	startsWith(BoundReference<T> ref, Literal<T> lit)

Methods inherited from class org.apache.iceberg.expressions.ExpressionVisitors.ExpressionVisitor

aggregate, aggregate, alwaysFalse, alwaysTrue, and, not, or

Methods inherited from class java.lang.Object

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

Constructor Detail

BoundExpressionVisitor

public BoundExpressionVisitor()

Method Detail

isNull

public <T> R isNull(BoundReference<T> ref)

notNull

public <T> R notNull(BoundReference<T> ref)

isNaN

public <T> R isNaN(BoundReference<T> ref)

notNaN

public <T> R notNaN(BoundReference<T> ref)

lt

public <T> R lt(BoundReference<T> ref,
                Literal<T> lit)

ltEq

public <T> R ltEq(BoundReference<T> ref,
                  Literal<T> lit)

gt

public <T> R gt(BoundReference<T> ref,
                Literal<T> lit)

gtEq

public <T> R gtEq(BoundReference<T> ref,
                  Literal<T> lit)

eq

public <T> R eq(BoundReference<T> ref,
                Literal<T> lit)

notEq

public <T> R notEq(BoundReference<T> ref,
                   Literal<T> lit)

in

public <T> R in(BoundReference<T> ref,
                java.util.Set<T> literalSet)

notIn

public <T> R notIn(BoundReference<T> ref,
                   java.util.Set<T> literalSet)

startsWith

public <T> R startsWith(BoundReference<T> ref,
                        Literal<T> lit)

notStartsWith

public <T> R notStartsWith(BoundReference<T> ref,
                           Literal<T> lit)

handleNonReference

public <T> R handleNonReference(Bound<T> term)

Handle a non-reference value in this visitor.

Visitors that require references and not terms can use this method to return a default value for expressions with non-references. The default implementation will throw a validation exception because the non-reference is not supported.

Type Parameters:

T - a Java return type

Parameters:

term - a non-reference bound expression

Returns:

a return value for the visitor

predicate

public <T> R predicate(BoundPredicate<T> pred)

Overrides:

predicate in class ExpressionVisitors.ExpressionVisitor<R>

predicate

public <T> R predicate(UnboundPredicate<T> pred)

Overrides:

predicate in class ExpressionVisitors.ExpressionVisitor<R>