gudusoft.gsqlparser.pp2.island

Class MultiWordKeywordTable

Object

gudusoft.gsqlparser.pp2.island.MultiWordKeywordTable

public final class MultiWordKeywordTable
extends Object

Per-vendor table of multi-word SQL keyword phrases that the lexical island pipeline treats as a single keyword unit (e.g. LEFT OUTER JOIN, UNION ALL, GROUP BY).

Resource format

The phrases are declared in /pp2/keywords.properties on the classpath. org.json is not available to gsp_java_core, so a line-based format is used instead of keywords.json (plan §5.5 and forbidden action #8 — no new third-party dependency). Each rule line is:

   <SCOPE>: <phrase> | <phrase> | ...
 

where SCOPE is ALL or an EDbVendor enum constant name (e.g. dbvoracle). Blank lines and # comments are ignored.

Caching

The resource is parsed once per JVM into an immutable base model (eager class-init). forVendor(EDbVendor) returns an immutable, longest-phrase-first MultiWordKeywordTable.Phrase list, memoised per vendor via ConcurrentHashMap.computeIfAbsent(K, java.util.function.Function<? super K, ? extends V>). getLoadCount() exposes how many times the resource file itself was parsed (always 1 in a healthy JVM); the S18 test asserts this.

Plan reference: §7.3/S18, §7.4/S18.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MultiWordKeywordTable.Phrase An immutable multi-word keyword phrase: its lower-cased words (for matching) and an upper-cased canonical rendering (for reporting/merging).

Method Summary

Modifier and Type	Method and Description
static List<MultiWordKeywordTable.Phrase>	forVendor(EDbVendor vendor) Return the immutable, longest-phrase-first list of multi-word keyword phrases applicable to vendor (the universal ALL phrases plus any vendor-specific ones).
static int	getLoadCount() Number of times the resource file was parsed (1 in a healthy JVM).

Methods inherited from class Object

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

Method Detail

forVendor

public static List<MultiWordKeywordTable.Phrase> forVendor(EDbVendor vendor)

Return the immutable, longest-phrase-first list of multi-word keyword phrases applicable to vendor (the universal ALL phrases plus any vendor-specific ones). Memoised per vendor.

Throws:

NullPointerException - if vendor is null

getLoadCount

public static int getLoadCount()

Number of times the resource file was parsed (1 in a healthy JVM).