org.apache.parquet.filter2.recordlevel

Class IncrementallyUpdatedFilterPredicate.ValueInspector

java.lang.Object

org.apache.parquet.filter2.recordlevel.IncrementallyUpdatedFilterPredicate.ValueInspector

All Implemented Interfaces:

IncrementallyUpdatedFilterPredicate

Direct Known Subclasses:

IncrementallyUpdatedFilterPredicate.DelegatingValueInspector

Enclosing interface:

IncrementallyUpdatedFilterPredicate

public abstract static class IncrementallyUpdatedFilterPredicate.ValueInspector
extends Object
implements IncrementallyUpdatedFilterPredicate

This is the leaf node of a filter predicate. It receives the value for the primitive column it represents, and decides whether or not the predicate represented by this node is satisfied.

It is stateful, and needs to be rest after use.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.parquet.filter2.recordlevel.IncrementallyUpdatedFilterPredicate

IncrementallyUpdatedFilterPredicate.And, IncrementallyUpdatedFilterPredicate.BinaryLogical, IncrementallyUpdatedFilterPredicate.DelegatingValueInspector, IncrementallyUpdatedFilterPredicate.Or, IncrementallyUpdatedFilterPredicate.ValueInspector, IncrementallyUpdatedFilterPredicate.Visitor

Method Summary

Modifier and Type	Method and Description
boolean	accept(IncrementallyUpdatedFilterPredicate.Visitor visitor) A IncrementallyUpdatedFilterPredicate must accept a IncrementallyUpdatedFilterPredicate.Visitor, per the visitor pattern.
boolean	getResult() Should only be called if isKnown return true.
boolean	isKnown() Return true if this inspector has received a value yet, false otherwise.
void	reset() Reset to clear state and begin evaluating the next record.
protected void	setResult(boolean result) Subclasses should call this method to signal that the result of this predicate is known.
void	update(Binary value)
void	update(boolean value)
void	update(double value)
void	update(float value)
void	update(int value)
void	update(long value)
void	updateNull()

Methods inherited from class java.lang.Object

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

Method Detail

updateNull

public void updateNull()

update

public void update(int value)

update

public void update(long value)

update

public void update(double value)

update

public void update(float value)

update

public void update(boolean value)

update

public void update(Binary value)

reset

public void reset()

Reset to clear state and begin evaluating the next record.

setResult

protected final void setResult(boolean result)

Subclasses should call this method to signal that the result of this predicate is known.

Parameters:

result - the result of this predicate, when it is determined

getResult

public final boolean getResult()

Should only be called if isKnown return true.

Returns:

the result of this predicate

isKnown

public final boolean isKnown()

Return true if this inspector has received a value yet, false otherwise.

Returns:

true if the value of this predicate has been determined

accept

public boolean accept(IncrementallyUpdatedFilterPredicate.Visitor visitor)

Description copied from interface: IncrementallyUpdatedFilterPredicate

A IncrementallyUpdatedFilterPredicate must accept a IncrementallyUpdatedFilterPredicate.Visitor, per the visitor pattern.

Specified by:

accept in interface IncrementallyUpdatedFilterPredicate

Parameters:

visitor - a Visitor

Returns:

the result of this predicate