org.datanucleus.store.rdbms.mapping.java

Class StringBufferMapping

java.lang.Object

org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping

org.datanucleus.store.rdbms.mapping.java.SingleFieldMapping

org.datanucleus.store.rdbms.mapping.java.StringMapping

org.datanucleus.store.rdbms.mapping.java.StringBufferMapping

public class StringBufferMapping
extends StringMapping

Mapping for a StringBuffer type. Note: A java.lang.StringBuffer is a final class and does not allow a SCO implementation in order of implementing dirty detecting

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.datanucleus.store.types.converters.TypeConverter<java.lang.StringBuffer,java.lang.String>	converter

Fields inherited from class org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping

absFieldNumber, datastoreMappings, LOCALISER, LOCALISER_RDBMS, mmd, referenceMapping, roleForMember, storeMgr, table, type

Constructor Summary

Constructors

Constructor and Description
StringBufferMapping()

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Class	getJavaType() Accessor for the java type being mapped.
java.lang.String	getJavaTypeForDatastoreMapping(int index) Accessor for the name of the java-type actually used when mapping the particular datastore field.
java.lang.Object	getObject(org.datanucleus.ExecutionContext ec, java.sql.ResultSet resultSet, int[] exprIndex) Delegates to StringMapping the retrieval of a String and constructs a StringBuffer out of it
void	setObject(org.datanucleus.ExecutionContext ec, java.sql.PreparedStatement ps, int[] exprIndex, java.lang.Object value) Delegates to StringMapping the storage with giving a String

Methods inherited from class org.datanucleus.store.rdbms.mapping.java.SingleFieldMapping

equals, getBoolean, getByte, getChar, getDefaultLength, getDouble, getFloat, getInt, getLong, getShort, getString, getValidValues, initialize, prepareDatastoreMapping, setBoolean, setByte, setChar, setDouble, setFloat, setInt, setLong, setShort, setString

Methods inherited from class org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping

addDatastoreMapping, failureMessage, getAbsoluteFieldNumber, getColumnMetaDataForMember, getDatastoreMapping, getDatastoreMappings, getMemberMetaData, getNumberOfDatastoreMappings, getObject, getReferenceMapping, getRoleForMember, getStoreManager, getTable, getType, getValueForDatastoreMapping, hashCode, hasSimpleDatastoreRepresentation, includeInFetchStatement, includeInInsertStatement, includeInUpdateStatement, initialize, isNullable, isSerialised, representableAsStringLiteralInStatement, setAbsFieldNumber, setMemberMetaData, setObject, setReferenceMapping, setRoleForMember, setTable

Methods inherited from class java.lang.Object

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

Field Detail

converter

protected static final org.datanucleus.store.types.converters.TypeConverter<java.lang.StringBuffer,java.lang.String> converter

Constructor Detail

StringBufferMapping

public StringBufferMapping()

Method Detail

getJavaTypeForDatastoreMapping

public java.lang.String getJavaTypeForDatastoreMapping(int index)

Accessor for the name of the java-type actually used when mapping the particular datastore field. This java-type must have an entry in the datastore mappings.

Overrides:

getJavaTypeForDatastoreMapping in class SingleFieldMapping

Parameters:

index - requested datastore field index.

Returns:

the name of java-type for the requested datastore field.

setObject

public void setObject(org.datanucleus.ExecutionContext ec,
             java.sql.PreparedStatement ps,
             int[] exprIndex,
             java.lang.Object value)

Delegates to StringMapping the storage with giving a String

Overrides:

setObject in class SingleFieldMapping

Parameters:

ec - ExecutionContext

ps - PreparedStatement

exprIndex - the position of the value in the statement

value - the value

getObject

public java.lang.Object getObject(org.datanucleus.ExecutionContext ec,
                         java.sql.ResultSet resultSet,
                         int[] exprIndex)

Delegates to StringMapping the retrieval of a String and constructs a StringBuffer out of it

Overrides:

getObject in class SingleFieldMapping

Parameters:

ec - ExecutionContext

resultSet - ResultSet

exprIndex - the position of the value in the result

Returns:

the value

getJavaType

public java.lang.Class getJavaType()

Description copied from class: JavaTypeMapping

Accessor for the java type being mapped. This is the java type that the mapping represents. Some examples :

• if the field is of type "MyClass" then the mapping will be OIDMapping (or subclass) the javaType will be OID, and the type will be MyClass.
• if the field is of type "int" then the mapping will be IntegerMapping, the javaType will be Integer, and the type will be int.

The "java type" is the java-type name used in the plugin.xml mapping file

Overrides:

getJavaType in class StringMapping

Returns:

The java type