Package org.elasticsearch.xpack.esql.core.expression

Class UnresolvedMetadataAttributeExpression

java.lang.Object

org.elasticsearch.xpack.esql.core.tree.Node<Expression>

org.elasticsearch.xpack.esql.core.expression.Expression

org.elasticsearch.xpack.esql.core.expression.NamedExpression

org.elasticsearch.xpack.esql.core.expression.UnresolvedNamedExpression

org.elasticsearch.xpack.esql.core.expression.UnresolvedMetadataAttributeExpression

All Implemented Interfaces:

NamedWriteable, Writeable, Resolvable, Unresolvable

public class UnresolvedMetadataAttributeExpression
extends UnresolvedNamedExpression

Nested Class Summary

Nested classes/interfaces inherited from class org.elasticsearch.xpack.esql.core.expression.Expression

Expression.TypeResolution

Nested classes/interfaces inherited from class org.elasticsearch.xpack.esql.core.tree.Node

Node.NodeStringFormat

Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable

Writeable.Reader<V>, Writeable.Writer<V>

Field Summary

Fields inherited from class org.elasticsearch.xpack.esql.core.tree.Node

TO_STRING_MAX_LINES, TO_STRING_MAX_WIDTH

Fields inherited from interface org.elasticsearch.xpack.esql.core.capabilities.Unresolvable

UNRESOLVED_PREFIX

Constructor Summary

Constructors

Constructor	Description
UnresolvedMetadataAttributeExpression(Source source, String pattern)

Method Summary

Modifier and Type	Method	Description
String	getWriteableName()
protected NodeInfo<? extends Expression>	info()	Normally, you want to use one of the static create methods to implement this.
protected boolean	innerEquals(Object o, boolean ignoreIds)	The actual equality check, after shortcutting this == o and class checks.
protected int	innerHashCode(boolean ignoreIds)
Nullability	nullable()
String	pattern()
Expression	replaceChildren(List<Expression> newChildren)
Attribute	toAttribute()	Try to return either this if it is an Attribute, or a ReferenceAttribute to it otherwise.
String	toString()
String	unresolvedMessage()	NOTE: Any non-null return value from this method indicates that the item in question could not be resolved.
void	writeTo(StreamOutput out)

Methods inherited from class org.elasticsearch.xpack.esql.core.expression.UnresolvedNamedExpression

dataType, id, name, resolved

Methods inherited from class org.elasticsearch.xpack.esql.core.expression.NamedExpression

equals, equals, hashCode, hashCode, nodeString, synthetic

Methods inherited from class org.elasticsearch.xpack.esql.core.expression.Expression

canonical, canonicalize, childrenResolved, fold, foldable, propertiesToString, references, resolveType, semanticEquals, semanticHash, toString, typeResolved

Methods inherited from class org.elasticsearch.xpack.esql.core.tree.Node

allMatch, anyMatch, children, collect, collect, collect, collectFirstChildren, collectLeaves, doCollectFirst, forEachDown, forEachDown, forEachDownMayReturnEarly, forEachProperty, forEachPropertyDown, forEachPropertyOnly, forEachPropertyUp, forEachUp, forEachUp, nodeName, nodeProperties, nodeString, replaceChildrenSameSize, source, sourceLocation, sourceText, transformChildren, transformChildren, transformDown, transformDown, transformDown, transformDown, transformDownSkipBranch, transformNodeProps, transformPropertiesDown, transformPropertiesOnly, transformPropertiesUp, transformUp, transformUp, transformUp

Methods inherited from class java.lang.Object

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

Constructor Details

UnresolvedMetadataAttributeExpression

public UnresolvedMetadataAttributeExpression(Source source,
 String pattern)

Method Details

writeTo

public void writeTo(StreamOutput out)
             throws IOException

Throws:

IOException

getWriteableName

public String getWriteableName()

replaceChildren

public Expression replaceChildren(List<Expression> newChildren)

Specified by:

replaceChildren in class Node<Expression>

info

protected NodeInfo<? extends Expression> info()

Description copied from class: Node

Normally, you want to use one of the static create methods to implement this.

For QueryPlans, it is very important that the properties contain all of the expressions and references relevant to this node, and that all the properties are used in the provided constructor; otherwise query plan transformations like QueryPlan#transformExpressionsOnly(Function) will not have an effect.

Specified by:

info in class Node<Expression>

toAttribute

public Attribute toAttribute()

Description copied from class: NamedExpression

Try to return either this if it is an Attribute, or a ReferenceAttribute to it otherwise. Return an UnresolvedAttribute if this is unresolved.

Overrides:

toAttribute in class UnresolvedNamedExpression

pattern

public String pattern()

innerHashCode

protected int innerHashCode(boolean ignoreIds)

Overrides:

innerHashCode in class NamedExpression

innerEquals

protected boolean innerEquals(Object o,
 boolean ignoreIds)

Description copied from class: NamedExpression

The actual equality check, after shortcutting this == o and class checks.

Overrides:

innerEquals in class NamedExpression

nullable

public Nullability nullable()

Specified by:

nullable in class Expression

unresolvedMessage

public String unresolvedMessage()

Description copied from interface: Unresolvable

NOTE: Any non-null return value from this method indicates that the item in question could not be resolved.

toString

public String toString()

Overrides:

toString in class NamedExpression