Package com.apple.foundationdb.record.query.expressions

Class BaseNestedField

java.lang.Object

com.apple.foundationdb.record.query.expressions.BaseField

com.apple.foundationdb.record.query.expressions.BaseNestedField

All Implemented Interfaces:

PlanHashable, ComponentWithSingleChild, QueryComponent, QueryHashable

Direct Known Subclasses:

NestedField

@API(INTERNAL)
public abstract class BaseNestedField
extends BaseField
implements ComponentWithSingleChild

An abstract base class for all QueryComponents that represent a query of a nested record type.

Nested Class Summary

Nested classes/interfaces inherited from interface com.apple.foundationdb.record.PlanHashable

PlanHashable.PlanHashKind

Nested classes/interfaces inherited from interface com.apple.foundationdb.record.QueryHashable

QueryHashable.QueryHashKind

Field Summary

Fields

Modifier and Type	Field	Description
protected QueryComponent	childComponent

Constructor Summary

Constructors

Constructor	Description
BaseNestedField(String fieldName, QueryComponent childComponent)

Method Summary

Modifier and Type	Method	Description
QueryComponent	getChild()
boolean	isAsync()	Get whether this component is asynchronous.
abstract QueryComponent	withOtherChild(QueryComponent newChild)

Methods inherited from class com.apple.foundationdb.record.query.expressions.BaseField

basePlanHash, baseQueryHash, equals, findFieldDescriptor, getFieldName, getFieldValue, getName, hashCode, requireMessageField, requirePrimitiveField, requireScalarField, validateFieldExistence

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.apple.foundationdb.record.PlanHashable

planHash, planHash

Methods inherited from interface com.apple.foundationdb.record.query.expressions.QueryComponent

eval, evalAsync, evalMessage, evalMessageAsync, expand, expand, validate

Methods inherited from interface com.apple.foundationdb.record.QueryHashable

queryHash

Field Detail

childComponent

@Nonnull
protected final QueryComponent childComponent

Constructor Detail

BaseNestedField

public BaseNestedField(String fieldName,
                       @Nonnull
                       QueryComponent childComponent)

Method Detail

getChild

@Nonnull
public QueryComponent getChild()

Specified by:

getChild in interface ComponentWithSingleChild

withOtherChild

public abstract QueryComponent withOtherChild(QueryComponent newChild)

Specified by:

withOtherChild in interface ComponentWithSingleChild

isAsync

public boolean isAsync()

Description copied from interface: QueryComponent

Get whether this component is asynchronous.

Specified by:

isAsync in interface QueryComponent

Returns:

true if this component is better executed asynchronously