org.apache.iceberg.expressions

Class InclusiveManifestEvaluator

java.lang.Object

org.apache.iceberg.expressions.InclusiveManifestEvaluator

public class InclusiveManifestEvaluator
extends java.lang.Object

Evaluates an Expression on a ManifestFile to test whether the file contains matching partitions.

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

Files are passed to eval(ManifestFile), which returns true if the manifest may contain data files that match the partition expression. Manifest files may be skipped if and only if the return value of eval is false.

Constructor Summary

Constructors

Constructor and Description
InclusiveManifestEvaluator(PartitionSpec spec, Expression rowFilter)
InclusiveManifestEvaluator(PartitionSpec spec, Expression rowFilter, boolean caseSensitive)

Method Summary

Modifier and Type	Method and Description
boolean	eval(ManifestFile manifest) 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

InclusiveManifestEvaluator

public InclusiveManifestEvaluator(PartitionSpec spec,
                                  Expression rowFilter)

InclusiveManifestEvaluator

public InclusiveManifestEvaluator(PartitionSpec spec,
                                  Expression rowFilter,
                                  boolean caseSensitive)

Method Detail

eval

public boolean eval(ManifestFile manifest)

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

Parameters:

manifest - a manifest file

Returns:

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