Package com.apple.foundationdb.record.query.plan.temp.view

Class RecordTypeSource

java.lang.Object

com.apple.foundationdb.record.query.plan.temp.view.Source

com.apple.foundationdb.record.query.plan.temp.view.RecordTypeSource

@API(EXPERIMENTAL)
public class RecordTypeSource
extends Source

A Source representing the stream of all records of a particular type or types.

Constructor Summary

Constructors

Constructor	Description
RecordTypeSource(String recordTypeName)
RecordTypeSource(Set<String> recordTypeNames)

Method Summary

Modifier and Type	Method	Description
protected Stream<SourceEntry>	evalSourceEntriesFor(SourceEntry entry)	Produce the stream of source entries that this source represents, drawing the values for dependent sources from the given source entry if needed.
Set<String>	getRecordTypeNames()
Set<Source>	getSources()	Get the set of all sources of ancestor's of this source, include this source itself.
boolean	supportsSourceIn(ViewExpressionComparisons comparisons, Source other)	Check whether this source can be replaced by the given source in the given ViewExpressionComparisons.
String	toString()
RecordTypeSource	withSourceMappedInto(Source originalSource, Source duplicateSource)	Replace the given duplicate source with the given original source everywhere that it occurs in this source, including in ancestor sources.

Methods inherited from class com.apple.foundationdb.record.query.plan.temp.view.Source

addDependentSource, equals, evalSourceEntriesFor, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

RecordTypeSource

public RecordTypeSource(@Nonnull
                        String recordTypeName)

RecordTypeSource

public RecordTypeSource(@Nonnull
                        Set<String> recordTypeNames)

Method Detail

getRecordTypeNames

@Nonnull
public Set<String> getRecordTypeNames()

getSources

public Set<Source> getSources()

Description copied from class: Source

Get the set of all sources of ancestor's of this source, include this source itself.

Specified by:

getSources in class Source

Returns:

a set of the sources of all (inclusive) ancestors of this source

supportsSourceIn

public boolean supportsSourceIn(@Nonnull
                                ViewExpressionComparisons comparisons,
                                @Nonnull
                                Source other)

Description copied from class: Source

Check whether this source can be replaced by the given source in the given ViewExpressionComparisons. In general, this source can be replaced by the given source if and only if:

• The sources match each other "structurally" (i.e., differ only in a pointer-equality sense).
• The elements with comparisons in the ViewExpressionComparisons do not use this source.

Specified by:

supportsSourceIn in class Source

Parameters:

comparisons - a view expression comparisons that specifies which sources are used and unused

other - a candidate replacement for this source

Returns:

whether this source can be replaced by other

See Also:

Source.withSourceMappedInto(Source, Source), Element.matchSourcesWith(ViewExpressionComparisons, Element)

withSourceMappedInto

@Nonnull
public RecordTypeSource withSourceMappedInto(@Nonnull
                                             Source originalSource,
                                             @Nonnull
                                             Source duplicateSource)

Description copied from class: Source

Replace the given duplicate source with the given original source everywhere that it occurs in this source, including in ancestor sources.

Specified by:

withSourceMappedInto in class Source

Parameters:

originalSource - a source to replace all occurrences of the duplicate source with

duplicateSource - a source to replace with the original source

Returns:

a copy of this source with all occurrences of the duplicate source replaced with the original source

evalSourceEntriesFor

@Nonnull
protected Stream<SourceEntry> evalSourceEntriesFor(@Nonnull
                                                   SourceEntry entry)

Description copied from class: Source

Produce the stream of source entries that this source represents, drawing the values for dependent sources from the given source entry if needed.

Specified by:

evalSourceEntriesFor in class Source

Parameters:

entry - a source entry to draw the input for this source from

Returns:

a stream of source entries, each of which has a value associated with this source

toString

public String toString()

Overrides:

toString in class Object