org.jpox.store.mapping
Class PointMapping

java.lang.Object
  org.jpox.store.mapping.JavaTypeMapping
      org.jpox.store.mapping.SingleFieldMultiMapping
          org.jpox.store.mapping.PointMapping

public class PointMapping
extends SingleFieldMultiMapping

Mapping for java.awt.Point to its datastore representation.

Version:

$Revision: 1.14 $

Field Summary

Fields inherited from class org.jpox.store.mapping.SingleFieldMultiMapping

datastoreContainer

Fields inherited from class org.jpox.store.mapping.JavaTypeMapping

datastoreMappings, dba, fmd, LOCALISER, referenceMapping, type

Constructor Summary

PointMapping(DatastoreAdapter dba, AbstractPropertyMetaData fmd, DatastoreContainerObject datastoreContainer, ClassLoaderResolver clr)
Constructor.

PointMapping(DatastoreAdapter dba, java.lang.String type)
Constructor.

Method Summary

java.lang.Class	getJavaType() Accessor for the java type being mapped
java.lang.Object	getObject(PersistenceManager pm, java.lang.Object resultSet, int[] exprIndex) Obtains a value from resultSet at position specified by exprIndex.
java.lang.Object	getSampleValue() Return a sample value of the mapping type to be used for internal evaluation of type and conversion.
ScalarExpression	newLiteral(QueryExpression qs, java.lang.Object value) Creates a literal from an value.
ScalarExpression	newScalarExpression(QueryExpression qs, LogicSetExpression te) Creates a expression from a field name/table.
void	setObject(PersistenceManager pm, java.lang.Object preparedStatement, int[] exprIndex, java.lang.Object value) Sets a value into preparedStatement at position specified by exprIndex.

Methods inherited from class org.jpox.store.mapping.SingleFieldMultiMapping

addDatastoreField, getDatastoreContainer, includeInFetchStatement, includeInInsertStatement, includeInUpdateStatement

Methods inherited from class org.jpox.store.mapping.JavaTypeMapping

addDataStoreMapping, failureMessage, getBoolean, getByte, getChar, getDataStoreMapping, getDataStoreMappings, getDouble, getFieldMetaData, getFloat, getInt, getLong, getNumberOfDatastoreFields, getObject, getReferenceMapping, getShort, getString, getType, isNullable, setBoolean, setByte, setChar, setDefault, setDouble, setFloat, setInt, setLong, setObject, setReferenceMapping, setShort, setString

Methods inherited from class java.lang.Object

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

Constructor Detail

PointMapping

public PointMapping(DatastoreAdapter dba,
                    java.lang.String type)

Constructor.

Parameters:

dba - Datastore adaper

type - The java type

PointMapping

public PointMapping(DatastoreAdapter dba,
                    AbstractPropertyMetaData fmd,
                    DatastoreContainerObject datastoreContainer,
                    ClassLoaderResolver clr)

Constructor.

Parameters:

dba - Database adapter

fmd - Field metadata for the field of this Java type

datastoreContainer - The datastore class where the field will be persisted

clr - The ClassLoaderResolver

Method Detail

getJavaType

public java.lang.Class getJavaType()

Description copied from class: JavaTypeMapping

Accessor for the java type being mapped

Specified by:

getJavaType in class JavaTypeMapping

Returns:

The java type

getSampleValue

public java.lang.Object getSampleValue()

Description copied from class: JavaTypeMapping

Return a sample value of the mapping type to be used for internal evaluation of type and conversion.

Specified by:

getSampleValue in class JavaTypeMapping

Returns:

The sample value.

setObject

public void setObject(PersistenceManager pm,
                      java.lang.Object preparedStatement,
                      int[] exprIndex,
                      java.lang.Object value)

Description copied from class: JavaTypeMapping

Sets a value into preparedStatement at position specified by exprIndex.

Overrides:

setObject in class JavaTypeMapping

Parameters:

pm - the PersistenceManager

preparedStatement - a datastore object that executes statements in the database

exprIndex - the position of the value in the statement

value - the value

getObject

public java.lang.Object getObject(PersistenceManager pm,
                                  java.lang.Object resultSet,
                                  int[] exprIndex)

Description copied from class: JavaTypeMapping

Obtains a value from resultSet at position specified by exprIndex.

Overrides:

getObject in class JavaTypeMapping

Parameters:

pm - the PersistenceManager

resultSet - an object returned from the datastore with values

exprIndex - the position of the value in the result

Returns:

the value

newLiteral

public ScalarExpression newLiteral(QueryExpression qs,
                                   java.lang.Object value)

Description copied from class: JavaTypeMapping

Creates a literal from an value. A string literal is enclosed in single quotes. for example: "literal". A string literal that includes a single quote is represented by two single quotes. for example: "literal''s". An exact numeric literal is a numeric value without a decimal point, such as 57, -957, +62. An approximate numeric literal is a numeric value in scientific notation, such as 7E3, -57.9E2, or a numeric value with a decimal, such as 7., -95.7, +6.2.

Specified by:

newLiteral in class JavaTypeMapping

Parameters:

qs - The Query statement

value - The object

Returns:

A Scalar Expression

newScalarExpression

public ScalarExpression newScalarExpression(QueryExpression qs,
                                            LogicSetExpression te)

Description copied from class: JavaTypeMapping

Creates a expression from a field name/table. e.g. tablename.fieldname; tablealias.fieldalias

Specified by:

newScalarExpression in class JavaTypeMapping

Parameters:

qs - The Query statement

te - the alias for the table

Returns:

A Scalar Expression