Package org.apache.gravitino.rel.expressions

Class NamedReference.MetadataField

java.lang.Object

org.apache.gravitino.rel.expressions.NamedReference.MetadataField

All Implemented Interfaces:

Expression, NamedReference

Enclosing interface:

NamedReference

public static final class NamedReference.MetadataField
extends Object
implements NamedReference

A NamedReference that references a metadata field.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.gravitino.rel.expressions.NamedReference

NamedReference.FieldReference, NamedReference.MetadataField

Field Summary

Fields

Modifier and Type	Field	Description
static final NamedReference.MetadataField	PARTITION_NAME_FIELD	A metadata field that represents the name of a partition in a partitioned table.

Fields inherited from interface org.apache.gravitino.rel.expressions.Expression

EMPTY_EXPRESSION, EMPTY_NAMED_REFERENCE

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
String[]	fieldName()	Returns the referenced field name as an array of String parts.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.gravitino.rel.expressions.NamedReference

children, references

Field Details

PARTITION_NAME_FIELD

public static final NamedReference.MetadataField PARTITION_NAME_FIELD

A metadata field that represents the name of a partition in a partitioned table.

Method Details

fieldName

public String[] fieldName()

Description copied from interface: NamedReference

Returns the referenced field name as an array of String parts.

Each string in the returned array represents a field name.

Specified by:

fieldName in interface NamedReference

Returns:

the referenced field name as an array of String parts.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object