/*
* Copyright 2004-2013 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.lealone.result;
import org.lealone.constant.Constants;
import org.lealone.util.StatementBuilder;
import org.lealone.value.Value;
/**
* Represents a simple row without state.
*/
public class SimpleRow implements SearchRow {
private long key;
private int version;
private final Value[] data;
private int memory;
private Value rowKey;
public SimpleRow(Value[] data) {
this.data = data;
}
public int getColumnCount() {
return data.length;
}
public long getKey() {
return key;
}
public void setKey(long key) {
this.key = key;
}
public void setKeyAndVersion(SearchRow row) {
key = row.getKey();
version = row.getVersion();
}
public int getVersion() {
return version;
}
public void setValue(int i, Value v) {
data[i] = v;
}
public Value getValue(int i) {
return data[i];
}
public String toString() {
StatementBuilder buff = new StatementBuilder("( /* key:");
buff.append(getKey());
if (version != 0) {
buff.append(" v:" + version);
}
buff.append(" */ ");
for (Value v : data) {
buff.appendExceptFirst(", ");
buff.append(v == null ? "null" : v.getTraceSQL());
}
return buff.append(')').toString();
}
public int getMemory() {
if (memory == 0) {
int len = data.length;
memory = Constants.MEMORY_OBJECT + len * Constants.MEMORY_POINTER;
for (int i = 0; i < len; i++) {
Value v = data[i];
if (v != null) {
memory += v.getMemory();
}
}
}
return memory;
}
@Override
public void setRowKey(Value rowKey) {
this.rowKey = rowKey;
}
@Override
public Value getRowKey() {
return rowKey;
}
}