Class CharacterMapping
java.lang.Object
org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping
org.datanucleus.store.rdbms.mapping.java.SingleFieldMapping
org.datanucleus.store.rdbms.mapping.java.CharacterMapping
Mapping for Character type.
In RDBMS, this mapping can be stored in INT or CHAR columns.
The use of INT columns facilitates greater than, less than operations within queries etc.
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Field Summary
Fields inherited from class org.datanucleus.store.rdbms.mapping.java.SingleFieldMapping
EXTENSION_CHECK_CONSTRAINT_VALUES
Fields inherited from class org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping
absFieldNumber, columnMappings, mmd, referenceMapping, roleForMember, storeMgr, table, type
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionint
getDefaultLength
(int index) Method to return the default length of this type in the datastore.Accessor for the java type being mapped.Methods inherited from class org.datanucleus.store.rdbms.mapping.java.SingleFieldMapping
getBoolean, getByte, getChar, getDouble, getFloat, getInt, getJavaTypeForColumnMapping, getLong, getObject, getShort, getString, getValidValues, initialize, prepareColumnMapping, setBoolean, setByte, setChar, setDouble, setFloat, setInt, setLong, setObject, setShort, setString
Methods inherited from class org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping
addColumnMapping, equals, failureMessage, getAbsoluteFieldNumber, getColumnMapping, getColumnMappings, getColumnMetaDataForMember, getMemberMetaData, getNumberOfColumnMappings, getObject, getReferenceMapping, getRoleForMember, getStoreManager, getTable, getType, getValueForColumnMapping, hashCode, hasSimpleDatastoreRepresentation, includeInFetchStatement, includeInInsertStatement, includeInUpdateStatement, initialize, isNullable, isSerialised, performSetPostProcessing, representableAsStringLiteralInStatement, requiresSetPostProcessing, setAbsFieldNumber, setMemberMetaData, setObject, setReferenceMapping, setRoleForMember, setTable
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Constructor Details
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CharacterMapping
public CharacterMapping()
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Method Details
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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.
- Specified by:
getJavaType
in classJavaTypeMapping
- Returns:
- The java type
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getDefaultLength
public int getDefaultLength(int index) Method to return the default length of this type in the datastore. Character/char will need a single character!- Overrides:
getDefaultLength
in classSingleFieldMapping
- Parameters:
index
- The index position- Returns:
- The default length
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