39 lines
1.1 KiB
Java
39 lines
1.1 KiB
Java
package org.warp.jcwdb;
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import it.unimi.dsi.fastutil.longs.LongArrayList;
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public class DBLightArrayListParser<T> extends DBTypeParserImpl<LightArrayList<T>> {
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private final JCWDatabase db;
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public DBLightArrayListParser(JCWDatabase db) {
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this.db = db;
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}
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public DBReader<LightArrayList<T>> getReader() {
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return (i, size) -> {
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LongArrayList internalList = new LongArrayList();
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long max = size / Long.BYTES;
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for (int item = 0; item < max; item++) {
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long itm = i.readLong();
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internalList.add(itm);
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}
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return new LightArrayList<T>(db, internalList);
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};
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}
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public DBDataOutput<LightArrayList<T>> getWriter(final LightArrayList<T> value) {
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final int elementsCount = value.size();
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return DBDataOutput.create((o) -> {
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LongArrayList list = value.internalList;
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for (int i = 0; i < elementsCount; i++) {
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o.writeLong(list.getLong(i));
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}
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}, DBStandardTypes.LIGHT_LIST_ARRAY, elementsCount * Long.BYTES, calculateHash(value));
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}
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@Override
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public long calculateHash(LightArrayList<T> value) {
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return value.internalList.hashCode();
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}
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}
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