Class CollectionValues

java.lang.Object

io.fluxzero.common.search.CollectionValues

public final class CollectionValues
extends Object

Collection intervals using the existing sortable encoding and per-document legacy fallback.

Method Summary

Modifier and Type	Method	Description
static int	compare(String left, String right)	Compares normalized keys in Unicode codepoint order, matching PostgreSQL's binary C collation.
static String	extremum(Document document, String path, ValueSelection selection)	Returns the requested extremum, or null for missing, empty or null-only values.
static Map<String, List<String>>	indexedValues(Document document)	Materializes at most two extrema per annotated path, in one pass over the document entries.
static Map<String, List<String>>	indexedValues(Document document, Collection<String> pathsToIndex)	Collects requested canonical extrema; empty means missing, singleton means minimum equals maximum.
static String	key(Document.Entry entry)	Encodes a raw document scalar with the same rules as annotated values.
static String	key(Object value)	Uses existing sortable numeric precision and normalization.
static boolean	overlaps(Document document, String path, String lower, String upper)	Tests interval overlap; old annotated documents without a minimum retain their maximum-only interval.
static Stream<String>	values(Document document, String path)	Streams comparison keys at one path.

Methods inherited from class Object

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

Method Details

compare

public static int compare(String left,
 String right)

Compares normalized keys in Unicode codepoint order, matching PostgreSQL's binary C collation.

key

public static String key(Object value)

Uses existing sortable numeric precision and normalization. Uppercase UTC ISO timestamp text, as emitted by Instant JSON serialization, uses the existing fixed-millisecond timestamp encoding. The document text is unchanged. Literal strings with this exact syntax are indistinguishable from serialized Instants here.

key

public static String key(Document.Entry entry)

Encodes a raw document scalar with the same rules as annotated values.

values

public static Stream<String> values(Document document,
 String path)

Streams comparison keys at one path. Nulls and internal metadata are excluded.

extremum

public static String extremum(Document document,
 String path,
 ValueSelection selection)

Returns the requested extremum, or null for missing, empty or null-only values.

overlaps

public static boolean overlaps(Document document,
 String path,
 String lower,
 String upper)

Tests interval overlap; old annotated documents without a minimum retain their maximum-only interval.

indexedValues

public static Map<String, List<String>> indexedValues(Document document)

Materializes at most two extrema per annotated path, in one pass over the document entries.

indexedValues

public static Map<String, List<String>> indexedValues(Document document,
 Collection<String> pathsToIndex)

Collects requested canonical extrema; empty means missing, singleton means minimum equals maximum.