Module com.aoindustries.aoserv.client

Package com.aoindustries.aoserv.client.sql

Class SqlColumnJoin

java.lang.Object

com.aoindustries.aoserv.client.sql.SqlColumnJoin

All Implemented Interfaces:

SqlExpression

public final class SqlColumnJoin
extends Object
implements SqlExpression

Gets the value for one column by following its reference to another table.

Author:

AO Industries, Inc.

Constructor Summary

Constructors

Constructor	Description
SqlColumnJoin(AoservConnector conn, SqlExpression expression, Column keyColumn, Column valueColumn)

Method Summary

Modifier and Type	Method	Description
Object	evaluate(AoservConnector conn, AoservObject<?,?> obj)	Evaluates the expression on the given connector and object.
String	getColumnName()
void	getReferencedTables(AoservConnector conn, List<Table> tables)	Gets all of the tables referenced by this expression.
Type	getType()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

SqlColumnJoin

public SqlColumnJoin(AoservConnector conn,
 SqlExpression expression,
 Column keyColumn,
 Column valueColumn)
              throws SQLException,
IOException

Throws:

SQLException

IOException

Method Details

toString

public String toString()

Overrides:

toString in class Object

getColumnName

public String getColumnName()

Specified by:

getColumnName in interface SqlExpression

evaluate

public Object evaluate(AoservConnector conn,
 AoservObject<?,?> obj)
                throws IOException,
SQLException

Description copied from interface: SqlExpression

Evaluates the expression on the given connector and object.

Specified by:

evaluate in interface SqlExpression

Throws:

IOException

SQLException

getType

public Type getType()

Specified by:

getType in interface SqlExpression

getReferencedTables

public void getReferencedTables(AoservConnector conn,
 List<Table> tables)
                         throws IOException,
SQLException

Description copied from interface: SqlExpression

Gets all of the tables referenced by this expression.

Specified by:

getReferencedTables in interface SqlExpression

Throws:

IOException

SQLException