org.eclipse.persistence.queries
Class ColumnResult

java.lang.Object
  org.eclipse.persistence.queries.SQLResult
      org.eclipse.persistence.queries.ColumnResult

All Implemented Interfaces:

java.io.Serializable

public class ColumnResult
extends SQLResult

Purpose: Concrete class to represent the ColumnResult structure as defined by the EJB 3.0 Persistence specification. This class is a subcomponent of the EntityResult

See Also:

EntityResult, Serialized Form

Author:

Gordon Yorke

Since:

TopLink Java Essentials

Field Summary

protected org.eclipse.persistence.internal.helper.DatabaseField

column Stores the Columns name from the result set

Fields inherited from class org.eclipse.persistence.queries.SQLResult

sqlResultSetMapping

Constructor Summary

ColumnResult(org.eclipse.persistence.internal.helper.DatabaseField column)

ColumnResult(java.lang.String column)

Method Summary

void	convertClassNamesToClasses(java.lang.ClassLoader classLoader) INTERNAL: Convert all the class-name-based settings in this query to actual class-based settings.
org.eclipse.persistence.internal.helper.DatabaseField	getColumn()
java.lang.Object	getValueFromRecord(DatabaseRecord record, ResultSetMappingQuery query) INTERNAL: This method is a convenience method for extracting values from Results
boolean	isColumnResult() Return true if this is a column result.

Methods inherited from class org.eclipse.persistence.queries.SQLResult

getSQLResultMapping, isConstructorResult, isEntityResult, setSQLResultMapping

Methods inherited from class java.lang.Object

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

Field Detail

column

protected org.eclipse.persistence.internal.helper.DatabaseField column

Stores the Columns name from the result set

Constructor Detail

ColumnResult

public ColumnResult(org.eclipse.persistence.internal.helper.DatabaseField column)

ColumnResult

public ColumnResult(java.lang.String column)

Method Detail

convertClassNamesToClasses

public void convertClassNamesToClasses(java.lang.ClassLoader classLoader)

INTERNAL: Convert all the class-name-based settings in this query to actual class-based settings. This method is used when converting a project that has been built with class names to a project with classes.

Overrides:

convertClassNamesToClasses in class SQLResult

Parameters:

classLoader -

getColumn

public org.eclipse.persistence.internal.helper.DatabaseField getColumn()

getValueFromRecord

public java.lang.Object getValueFromRecord(DatabaseRecord record,
                                           ResultSetMappingQuery query)

INTERNAL: This method is a convenience method for extracting values from Results

Specified by:

getValueFromRecord in class SQLResult

isColumnResult

public boolean isColumnResult()

Description copied from class: SQLResult

Return true if this is a column result.

Overrides:

isColumnResult in class SQLResult