Class GTable2

ZezeJava/ZezeJava/src/main/java/Zeze/Transaction/GTable/GTable2.java:15–158

import static Zeze.Util.Json.ensureNotNull;

@SuppressWarnings("unchecked")
public class GTable2<R, C, V extends Bean, VReadOnly> extends StandardTable<R, C, V> {
	public static final class Factory<R, C, V extends Bean, VReadOnly> implements Supplier<Map<C, V>> {
		private final @NotNull Meta2<R, BeanMap2<C, V, VReadOnly>> pmapMeta;
		private final @NotNull Meta2<C, V> bmapMeta;
		private Json.FieldMeta fm1, fm2;

		Factory(@NotNull Meta2<R, BeanMap2<C, V, VReadOnly>> pmapMeta, @NotNull Meta2<C, V> bmapMeta) {
			this.pmapMeta = pmapMeta;
			this.bmapMeta = bmapMeta;
		}

		public @NotNull Meta2<R, BeanMap2<C, V, VReadOnly>> getPmapMeta() {
			return pmapMeta;
		}

		public @NotNull Meta2<C, V> getBmapMeta() {
			return bmapMeta;
		}

		@Override
		public @NotNull Map<C, V> get() {
			return new BeanMap2<>(bmapMeta);
		}
	}

	static {
		var json = Json.instance;

		json.getClassMeta(GTable2.class).setParser((reader, classMeta, fieldMeta, obj, parent) -> {
			if (obj == null || fieldMeta == null)
				return null; // 不支持GTable2新构造和非字段的GTable2对象
			obj.pMap2.clear();
			var factory = (Factory<?, ?, ?, ?>)obj.factory;
			var fm1 = factory.fm1;
			var fm2 = factory.fm2;
			if (fm1 == null) {
				var dummyField = GTable2.class.getDeclaredField("pMap2");
				var valueClass = (Class<?>)ensureNotNull(fieldMeta.paramTypes[2]);
				factory.fm1 = fm1 = new Json.FieldMeta(0x3c, 0, "PMap2", BeanMap2.class, factory::get,
						Json.ClassMeta.getKeyReader((Class<?>)fieldMeta.paramTypes[0]), dummyField);
				factory.fm2 = fm2 = new Json.FieldMeta(0x3c, 0, "BeanMap2", valueClass,
						Json.ClassMeta.getDefCtor(valueClass),
						Json.ClassMeta.getKeyReader((Class<?>)fieldMeta.paramTypes[1]), dummyField);
			}
			var keyParser = ensureNotNull(fm1.keyParser);
			for (int b = reader.skipNext(); b != '}'; b = reader.skipVar('}')) {
				var k = keyParser.parse(reader, b);
				reader.skipColon();
				//noinspection rawtypes
				var map = (BeanMap2)ensureNotNull(fm1.ctor).create();
				reader.parseMap0(map, classMeta, fm2);
				obj.pMap2.put(k, map);
			}
			reader.pos(reader.pos() + 1);
			return obj;
		});
		json.getClassMeta(GTable2.class).setWriter((writer, classMeta, obj) ->