Package org.apache.iceberg.expressions

Class InclusiveMetricsEvaluator

java.lang.Object

org.apache.iceberg.expressions.InclusiveMetricsEvaluator

public class InclusiveMetricsEvaluator
extends java.lang.Object

Evaluates an Expression on a DataFile to test whether rows in the file may match.

This evaluation is inclusive: it returns true if a file may match and false if it cannot match.

Files are passed to eval(ContentFile), which returns true if the file may contain matching rows and false if the file cannot contain matching rows. Files may be skipped if and only if the return value of eval is false.

Constructor Summary

Constructors

Constructor	Description
InclusiveMetricsEvaluator(Schema schema, Expression unbound)
InclusiveMetricsEvaluator(Schema schema, Expression unbound, boolean caseSensitive)

Method Summary

Modifier and Type	Method	Description
boolean	eval(ContentFile<?> file)	Test whether the file may contain records that match the expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

InclusiveMetricsEvaluator

public InclusiveMetricsEvaluator(Schema schema,
                                 Expression unbound)

InclusiveMetricsEvaluator

public InclusiveMetricsEvaluator(Schema schema,
                                 Expression unbound,
                                 boolean caseSensitive)

Method Detail

eval

public boolean eval(ContentFile<?> file)

Test whether the file may contain records that match the expression.

Parameters:

file - a data file

Returns:

false if the file cannot contain rows that match the expression, true otherwise.