Package org.datanucleus.metadata
Class ElementMetaData
- java.lang.Object
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- org.datanucleus.metadata.MetaData
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- org.datanucleus.metadata.AbstractElementMetaData
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- org.datanucleus.metadata.ElementMetaData
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- All Implemented Interfaces:
Serializable
,ColumnMetaDataContainer
public class ElementMetaData extends AbstractElementMetaData
This element specifies the mapping for the element component of arrays and collections. If only one column is mapped, and no additional information is needed for the column, then the column attribute can be used. Otherwise, the column element(s) are used. The serialised attribute specifies that the key values are to be serialised into the named column. The foreign-key attribute specifies the name of a foreign key to be generated.- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class org.datanucleus.metadata.AbstractElementMetaData
columnName, columns, embeddedMetaData, foreignKeyMetaData, indexed, indexMetaData, mappedBy, table, unique, uniqueMetaData
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Fields inherited from class org.datanucleus.metadata.MetaData
EXTENSION_CLASS_CREATETIMESTAMP, EXTENSION_CLASS_CREATETIMESTAMP_COLUMN_NAME, EXTENSION_CLASS_CREATEUSER, EXTENSION_CLASS_CREATEUSER_COLUMN_LENGTH, EXTENSION_CLASS_CREATEUSER_COLUMN_NAME, EXTENSION_CLASS_MULTITENANCY_COLUMN_LENGTH, EXTENSION_CLASS_MULTITENANCY_COLUMN_NAME, EXTENSION_CLASS_MULTITENANCY_JDBC_TYPE, EXTENSION_CLASS_MULTITENANT, EXTENSION_CLASS_READ_ONLY, EXTENSION_CLASS_SOFTDELETE, EXTENSION_CLASS_SOFTDELETE_COLUMN_NAME, EXTENSION_CLASS_UPDATETIMESTAMP, EXTENSION_CLASS_UPDATETIMESTAMP_COLUMN_NAME, EXTENSION_CLASS_UPDATEUSER, EXTENSION_CLASS_UPDATEUSER_COLUMN_LENGTH, EXTENSION_CLASS_UPDATEUSER_COLUMN_NAME, EXTENSION_CLASS_VERSION_FIELD_NAME, EXTENSION_CLASS_VIEW_DEFINITION, EXTENSION_CLASS_VIEW_IMPORTS, EXTENSION_INDEX_COLUMN_ORDERING, EXTENSION_MEMBER_CACHEABLE, EXTENSION_MEMBER_CALENDAR_ONE_COLUMN, EXTENSION_MEMBER_CASCADE_ATTACH, EXTENSION_MEMBER_CASCADE_DETACH, EXTENSION_MEMBER_CASCADE_PERSIST, EXTENSION_MEMBER_CASCADE_REFRESH, EXTENSION_MEMBER_COMPARATOR_NAME, EXTENSION_MEMBER_CONTAINER_ALLOW_NULLS, EXTENSION_MEMBER_CREATE_TIMESTAMP, EXTENSION_MEMBER_CREATE_USER, EXTENSION_MEMBER_ENUM_VALUE_GETTER, EXTENSION_MEMBER_IMPLEMENTATION_CLASSES, EXTENSION_MEMBER_INSERTABLE, EXTENSION_MEMBER_KEY_IMPLEMENTATION_CLASSES, EXTENSION_MEMBER_LIST_ORDERING, EXTENSION_MEMBER_RELATION_DISCRIM_COLUMN, EXTENSION_MEMBER_RELATION_DISCRIM_PK, EXTENSION_MEMBER_RELATION_DISCRIM_VALUE, EXTENSION_MEMBER_STRATEGY_WHEN_NOTNULL, EXTENSION_MEMBER_TYPE_CONVERTER_DISABLED, EXTENSION_MEMBER_TYPE_CONVERTER_NAME, EXTENSION_MEMBER_UPDATE_TIMESTAMP, EXTENSION_MEMBER_UPDATE_USER, EXTENSION_MEMBER_UPDATEABLE, EXTENSION_MEMBER_VALUE_IMPLEMENTATION_CLASSES, EXTENSION_VERSION_NUMBER_INITIAL_VALUE, extensions, metaDataState, parent, VENDOR_NAME
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Constructor Summary
Constructors Constructor Description ElementMetaData()
Default constructor.ElementMetaData(ElementMetaData emd)
Constructor to create a copy of the passed metadata using the provided parent.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
populate(ClassLoaderResolver clr, ClassLoader primary)
Populate the MetaData.-
Methods inherited from class org.datanucleus.metadata.AbstractElementMetaData
addColumn, getColumnMetaData, getColumnName, getDeleteAction, getEmbeddedMetaData, getForeignKeyMetaData, getIndexed, getIndexMetaData, getMappedBy, getTable, getUniqueMetaData, getUpdateAction, initialise, isUnique, newColumnMetaData, newEmbeddedMetaData, newForeignKeyMetaData, newIndexMetaData, newUniqueMetaData, setColumnName, setDeleteAction, setDeleteAction, setEmbeddedMetaData, setForeignKeyMetaData, setIndexed, setIndexMetaData, setMappedBy, setTable, setUnique, setUniqueMetaData, setUpdateAction, setUpdateAction
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Methods inherited from class org.datanucleus.metadata.MetaData
addExtension, addExtensions, getExtensions, getMetaDataManager, getNoOfExtensions, getParent, getValueForExtension, getValuesForExtension, hasExtension, isInitialised, isPopulated, isUsed, removeExtension, setExtensions, setParent
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Constructor Detail
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ElementMetaData
public ElementMetaData(ElementMetaData emd)
Constructor to create a copy of the passed metadata using the provided parent.- Parameters:
emd
- The metadata to copy
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ElementMetaData
public ElementMetaData()
Default constructor. Set the fields using setters, before populate().
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Method Detail
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populate
public void populate(ClassLoaderResolver clr, ClassLoader primary)
Populate the MetaData.- Overrides:
populate
in classAbstractElementMetaData
- Parameters:
clr
- Class loader to useprimary
- the primary ClassLoader to use (or null)
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