package org.apache.lucene.index;
import static org.apache.lucene.util.RamUsageEstimator.*;
import org.apache.lucene.document.NumericDocValuesField;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/** An in-place update to a numeric docvalues field */
final class NumericUpdate {
/* Rough logic: OBJ_HEADER + 3*PTR + INT
* Term: OBJ_HEADER + 2*PTR
* Term.field: 2*OBJ_HEADER + 4*INT + PTR + string.length*CHAR
* Term.bytes: 2*OBJ_HEADER + 2*INT + PTR + bytes.length
* String: 2*OBJ_HEADER + 4*INT + PTR + string.length*CHAR
* Long: OBJ_HEADER + LONG
*/
private static final int RAW_SIZE_IN_BYTES = 9*NUM_BYTES_OBJECT_HEADER + 8*NUM_BYTES_OBJECT_REF + 8*NUM_BYTES_INT + NUM_BYTES_LONG;
static final Long MISSING = new Long(0);
Term term;
String field;
Long value;
int docIDUpto = -1; // unassigned until applied, and confusing that it's here, when it's just used in BufferedDeletes...
/**
* Constructor.
*
* @param term the {@link Term} which determines the documents that will be updated
* @param field the {@link NumericDocValuesField} to update
* @param value the updated value
*/
NumericUpdate(Term term, String field, Long value) {
this.term = term;
this.field = field;
this.value = value == null ? MISSING : value;
}
int sizeInBytes() {
int sizeInBytes = RAW_SIZE_IN_BYTES;
sizeInBytes += term.field.length() * NUM_BYTES_CHAR;
sizeInBytes += term.bytes.bytes.length;
sizeInBytes += field.length() * NUM_BYTES_CHAR;
return sizeInBytes;
}
@Override
public String toString() {
return "term=" + term + ",field=" + field + ",value=" + value;
}
}