org.apache.cayenne.access.jdbc
Class RowDescriptor

java.lang.Object
  org.apache.cayenne.access.jdbc.RowDescriptor

public class RowDescriptor
extends java.lang.Object

A descriptor of a result row obtained from a database.

Since:

1.2

Author:

Andrei Adamchik

Field Summary

protected ColumnDescriptor[]	columns
protected ExtendedType[]	converters

Constructor Summary

protected	RowDescriptor() Creates an empty RowDescriptor.
	RowDescriptor(ColumnDescriptor[] columns, ExtendedTypeMap types) Creates a RowDescriptor for an array of columns.
	RowDescriptor(java.sql.ResultSet resultSet, ExtendedTypeMap types) Creates new RowDescriptor using ResultSet metadata to determine the columns.
	RowDescriptor(java.sql.ResultSet resultSet, ExtendedTypeMap types, java.util.Map javaTypeOverrides) Creates new RowDescriptor using ResultSet metadata to determine the columns.

Method Summary

ColumnDescriptor[]	getColumns() Returns column descriptors.
ExtendedType[]	getConverters() Returns extended types for columns.
int	getWidth() Returns a number of columns in a row.
protected void	indexTypes(ExtendedTypeMap types) Initializes converters for columns.
protected void	initFromResultSet(java.sql.ResultSet resultSet) Builds columns list from ResultSet metadata.
protected void	overrideJavaTypes(java.util.Map overrides) Overrides Java types of result columns.

Methods inherited from class java.lang.Object

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

Field Detail

columns

protected ColumnDescriptor[] columns

converters

protected ExtendedType[] converters

Constructor Detail

RowDescriptor

protected RowDescriptor()

Creates an empty RowDescriptor. Intended mainly for testing and use by subclasses.

RowDescriptor

public RowDescriptor(ColumnDescriptor[] columns,
                     ExtendedTypeMap types)

Creates a RowDescriptor for an array of columns.

RowDescriptor

public RowDescriptor(java.sql.ResultSet resultSet,
                     ExtendedTypeMap types)

Creates new RowDescriptor using ResultSet metadata to determine the columns.

RowDescriptor

public RowDescriptor(java.sql.ResultSet resultSet,
                     ExtendedTypeMap types,
                     java.util.Map javaTypeOverrides)

Creates new RowDescriptor using ResultSet metadata to determine the columns. Note that if javaTypeOverrides array is null, default JDBC to Java types mapping is used.

Method Detail

indexTypes

protected void indexTypes(ExtendedTypeMap types)

Initializes converters for columns.

initFromResultSet

protected void initFromResultSet(java.sql.ResultSet resultSet)

Builds columns list from ResultSet metadata.

overrideJavaTypes

protected void overrideJavaTypes(java.util.Map overrides)

Overrides Java types of result columns. Keys in the map must correspond to the names of the columns.

getWidth

public int getWidth()

Returns a number of columns in a row.

getColumns

public ColumnDescriptor[] getColumns()

Returns column descriptors.

getConverters

public ExtendedType[] getConverters()

Returns extended types for columns.