Package org.datanucleus.metadata
Class ContainerMetaData
- java.lang.Object
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- org.datanucleus.metadata.MetaData
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- org.datanucleus.metadata.ContainerMetaData
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- All Implemented Interfaces:
Serializable
- Direct Known Subclasses:
ArrayMetaData
,CollectionMetaData
,MapMetaData
public class ContainerMetaData extends MetaData
Representation of the Meta-Data for a container. This is subclassed by Array, Collection, and Map.- See Also:
- Serialized Form
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Field Summary
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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 ContainerMetaData()
Constructor.ContainerMetaData(ContainerMetaData contmd)
Copy constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Boolean
allowNulls()
Whether this container allows nulls.AbstractMemberMetaData
getMemberMetaData()
Accessor for the parent field/property MetaData.String
getMemberName()
Accessor for the parent member namevoid
populate()
Method to populate any defaults, and check the validity of the MetaData.-
Methods inherited from class org.datanucleus.metadata.MetaData
addExtension, addExtensions, getExtensions, getMetaDataManager, getNoOfExtensions, getParent, getValueForExtension, getValuesForExtension, hasExtension, initialise, isInitialised, isPopulated, isUsed, removeExtension, setExtensions, setParent
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Constructor Detail
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ContainerMetaData
public ContainerMetaData()
Constructor.
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ContainerMetaData
public ContainerMetaData(ContainerMetaData contmd)
Copy constructor.- Parameters:
contmd
- Container metadata to copy
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Method Detail
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populate
public void populate()
Method to populate any defaults, and check the validity of the MetaData.
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allowNulls
public Boolean allowNulls()
Whether this container allows nulls. For a collection/array this is whether there can be null elements. For a map this whether there can be null keys AND values (really we ought to treat them independent, but not done like that currently).- Returns:
- Whether nulls are allowed to be stored in the container
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getMemberMetaData
public AbstractMemberMetaData getMemberMetaData()
Accessor for the parent field/property MetaData.- Returns:
- Parent metadata
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getMemberName
public String getMemberName()
Accessor for the parent member name- Returns:
- Parent member name.
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