Module com.aoindustries.aoserv.client

Package com.aoindustries.aoserv.client.sql

Class SqlColumnValue

java.lang.Object

com.aoindustries.aoserv.client.sql.SqlColumnValue

All Implemented Interfaces:

SqlExpression

public final class SqlColumnValue
extends Object
implements SqlExpression

Gets the value for one column.

Author:

AO Industries, Inc.

Constructor Summary

Constructors

Constructor	Description
SqlColumnValue(AoservConnector conn, Column column)

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()	The return type of this expression.
boolean	isAggregate()	Is this an aggregate function?
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.aoindustries.aoserv.client.sql.SqlExpression

evaluateAggregate

Constructor Details

SqlColumnValue

public SqlColumnValue(AoservConnector conn,
 Column column)
               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)

Description copied from interface: SqlExpression

Evaluates the expression on the given connector and object.

Specified by:

evaluate in interface SqlExpression

isAggregate

public boolean isAggregate()

Description copied from interface: SqlExpression

Is this an aggregate function? Controls whether evaluation is performed via SqlExpression.evaluate(com.aoindustries.aoserv.client.AoservConnector, com.aoindustries.aoserv.client.AoservObject) or SqlExpression.evaluateAggregate(com.aoindustries.aoserv.client.AoservConnector, java.util.List). Please be sure to implement the corresponding evaluation function.

Specified by:

isAggregate in interface SqlExpression

getType

public Type getType()

Description copied from interface: SqlExpression

The return type of this expression.

Specified by:

getType in interface SqlExpression

getReferencedTables

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

Description copied from interface: SqlExpression

Gets all of the tables referenced by this expression.

Specified by:

getReferencedTables in interface SqlExpression

Throws:

SQLException

IOException