org.h2.result.ResultColumn Maven / Gradle / Ivy
/*
* Copyright 2004-2014 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.result;
import java.io.IOException;
import org.h2.value.Transfer;
/**
* A result set column of a remote result.
*/
public class ResultColumn {
/**
* The column alias.
*/
final String alias;
/**
* The schema name or null.
*/
final String schemaName;
/**
* The table name or null.
*/
final String tableName;
/**
* The column name or null.
*/
final String columnName;
/**
* The value type of this column.
*/
final int columnType;
/**
* The precision.
*/
final long precision;
/**
* The scale.
*/
final int scale;
/**
* The expected display size.
*/
final int displaySize;
/**
* True if this is an autoincrement column.
*/
final boolean autoIncrement;
/**
* True if this column is nullable.
*/
final int nullable;
/**
* Read an object from the given transfer object.
*
* @param in the object from where to read the data
*/
ResultColumn(Transfer in) throws IOException {
alias = in.readString();
schemaName = in.readString();
tableName = in.readString();
columnName = in.readString();
columnType = in.readInt();
precision = in.readLong();
scale = in.readInt();
displaySize = in.readInt();
autoIncrement = in.readBoolean();
nullable = in.readInt();
}
/**
* Write a result column to the given output.
*
* @param out the object to where to write the data
* @param result the result
* @param i the column index
*/
public static void writeColumn(Transfer out, ResultInterface result, int i)
throws IOException {
out.writeString(result.getAlias(i));
out.writeString(result.getSchemaName(i));
out.writeString(result.getTableName(i));
out.writeString(result.getColumnName(i));
out.writeInt(result.getColumnType(i));
out.writeLong(result.getColumnPrecision(i));
out.writeInt(result.getColumnScale(i));
out.writeInt(result.getDisplaySize(i));
out.writeBoolean(result.isAutoIncrement(i));
out.writeInt(result.getNullable(i));
}
}