com.j256.ormlite.stmt

Class ColumnArg

java.lang.Object

com.j256.ormlite.stmt.ColumnArg

public class ColumnArg
extends Object

An argument to a select SQL statement that represents a column in a table. This allows you using the QueryBuilder to be able to compare two database fields or using QueryBuilder.join(QueryBuilder) to be able to compare fields in different tables.

NOTE: This does not verify that the two fields in question _can_ be compared via SQL. If you try to compare (for example) a string to a number, a SQL exception will most likely be generated.

Author:

graywatson

Constructor Summary

Constructors

Constructor and Description
ColumnArg(String columnName) For queries where only one table is being addressed.
ColumnArg(String tableName, String columnName) For queries where multiple tables are being addressed.

Method Summary

Modifier and Type	Method and Description
String	getColumnName()
String	getTableName()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ColumnArg

public ColumnArg(String columnName)

For queries where only one table is being addressed. This will output an escaped column-name only into the query.

ColumnArg

public ColumnArg(String tableName,
                 String columnName)

For queries where multiple tables are being addressed. This will output an escaped table-name, then a period, then escaped column-name only into the query.

Method Detail

getTableName

public String getTableName()

getColumnName

public String getColumnName()