ValueMetaData (OpenJPA Parent POM 2.4.1 API)

All Superinterfaces:

MetaDataContext, MetaDataModes, Serializable

All Known Subinterfaces:

ValueMapping

All Known Implementing Classes:

FieldMapping, FieldMetaData, ValueMappingImpl, ValueMetaDataImpl
```
public interface ValueMetaData
extends MetaDataContext, MetaDataModes, Serializable
```
Holds metadata on a value; this could be a field value, key value, or element value.

Since:

0.4.0

Author:

Abe White

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`CASCADE_AUTO` Use automatic cascade behavior.
`static int`	`CASCADE_IMMEDIATE` The operation is immediately cascaded to this field.
`static int`	`CASCADE_NONE` The operation is not cascaded to this field.
`static String`	`MAPPED_BY_PK` Marker to set on `setValueMappedBy(java.lang.String)` to denote that the map key is mapped by the primary key field of the value.

Fields inherited from interface org.apache.openjpa.meta.MetaDataModes
MODE_ALL, MODE_ANN_MAPPING, MODE_MAPPING, MODE_MAPPING_INIT, MODE_META, MODE_NONE, MODE_QUERY

Method Summary

Methods
Modifier and Type	Method and Description
`ClassMetaData`	`addEmbeddedMetaData()` Add embedded metadata for this value.
`ClassMetaData`	`addEmbeddedMetaData(int access)` Add embedded metadata for this value with the given access type
`void`	`copy(ValueMetaData vmd)` Copy state from the given value to this one.
`int`	`getCascadeAttach()` Cascade behavior for attach operation.
`int`	`getCascadeDelete()` Cascade behavior for delete operation.
`int`	`getCascadeDetach()` Cascade behavior for detach operation.
`int`	`getCascadePersist()` Cascade behavior for persist operation.
`int`	`getCascadeRefresh()` Cascade behavior for refresh operation.
`Class`	`getDeclaredType()` Return the declared class of the value.
`int`	`getDeclaredTypeCode()` Return the declared type code of the value.
`ClassMetaData`	`getDeclaredTypeMetaData()` Return metadata for the value's class, if the type is persistent.
`ClassMetaData`	`getEmbeddedMetaData()` The embedded class metadata for the value.
`FieldMetaData`	`getFieldMetaData()` Return the owning field for this value.
`int`	`getResolve()` Resolve mode for metadata.
`Class`	`getType()` The value class.
`int`	`getTypeCode()` The type code of the value class.
`ClassMetaData`	`getTypeMetaData()` The metadata for the value class, if the type is persistent.
`Class`	`getTypeOverride()` User-supplied type overriding assumed type based on field.
`String`	`getValueMappedBy()` The field that this value shares a mapping with.
`FieldMetaData`	`getValueMappedByMetaData()` The field that this value shares a mapping with.
`boolean`	`isDeclaredTypePC()` Whether the type is a persistence capable instance.
`boolean`	`isEmbedded()` This attribute is a hint to the implementation to store this value in the same structure as the class, rather than as a separate datastore structure.
`boolean`	`isEmbeddedPC()` Whether this is an embedded persistence capable value.
`boolean`	`isSerialized()` Whether this value is serialized when stored.
`boolean`	`isTypePC()` Whether the type is a persistence capable instance.
`boolean`	`resolve(int mode)` Resolve and validate metadata.
`void`	`setCascadeAttach(int cascade)` Cascade behavior for attach operation.
`void`	`setCascadeDelete(int cascade)` Cascade behavior for deletion.
`void`	`setCascadeDetach(int cascade)` Cascade behavior for detach operation.
`void`	`setCascadePersist(int cascade)` Cascade behavior for persist operation.
`void`	`setCascadePersist(int cascade, boolean checkPUDefault)` Cascade behavior for persist operation.
`void`	`setCascadeRefresh(int cascade)` Cascade behavior for refresh operation.
`void`	`setDeclaredType(Class type)` Set the declared class of the value.
`void`	`setDeclaredTypeCode(int type)` Set the type code for the value.
`void`	`setEmbedded(boolean embedded)` This attribute is a hint to the implementation to store this value in the same structure as the class, rather than as a separate datastore structure.
`void`	`setResolve(int mode)` Resolve mode for metadata.
`void`	`setResolve(int mode, boolean on)` Resolve mode for metadata.
`void`	`setSerialized(boolean serialized)` Whether this value is serialized when stored.
`void`	`setType(Class type)` The value class.
`void`	`setTypeCode(int code)` The type code of the value class.
`void`	`setTypeOverride(Class type)` User-supplied type overriding assumed type based on field.
`void`	`setValueMappedBy(String mapped)` The field that this value shares a mapping with.

Methods inherited from interface org.apache.openjpa.meta.MetaDataContext
getRepository

- Field Detail
  - CASCADE_NONE
```
static final int CASCADE_NONE
```
    The operation is not cascaded to this field.
    
    See Also:
    Constant Field Values
  - CASCADE_IMMEDIATE
```
static final int CASCADE_IMMEDIATE
```
    The operation is immediately cascaded to this field.
    
    See Also:
    Constant Field Values
  - CASCADE_AUTO
```
static final int CASCADE_AUTO
```
    Use automatic cascade behavior. Persistence-by-reachability, delete-dependent, attach-if-detached, etc.
    
    See Also:
    Constant Field Values
  - MAPPED_BY_PK
```
static final String MAPPED_BY_PK
```
    Marker to set on setValueMappedBy(java.lang.String) to denote that the map key is mapped by the primary key field of the value.
    
    See Also:
    Constant Field Values
- Method Detail
  - getFieldMetaData
```
FieldMetaData getFieldMetaData()
```
    Return the owning field for this value.
  - getType
```
Class getType()
```
    The value class.
  - setType
```
void setType(Class type)
```
    The value class.
  - getTypeCode
```
int getTypeCode()
```
    The type code of the value class.
  - setTypeCode
```
void setTypeCode(int code)
```
    The type code of the value class.
  - isTypePC
```
boolean isTypePC()
```
    Whether the type is a persistence capable instance.
  - getTypeMetaData
```
ClassMetaData getTypeMetaData()
```
    The metadata for the value class, if the type is persistent.
  - getDeclaredType
```
Class getDeclaredType()
```
    Return the declared class of the value. This can differ from the return value of getType() if the user indicates a different type or the value has an externalizer.
  - setDeclaredType
```
void setDeclaredType(Class type)
```
    Set the declared class of the value.
  - getDeclaredTypeCode
```
int getDeclaredTypeCode()
```
    Return the declared type code of the value. This can differ from the return value of getTypeCode() if the user indicates a different type or the value has an externalizer.
  - setDeclaredTypeCode
```
void setDeclaredTypeCode(int type)
```
    Set the type code for the value. The type code is usually computed automatically, but it can be useful to set it explicitly when creating metadatas from scratch.
  - isDeclaredTypePC
```
boolean isDeclaredTypePC()
```
    Whether the type is a persistence capable instance.
  - getDeclaredTypeMetaData
```
ClassMetaData getDeclaredTypeMetaData()
```
    Return metadata for the value's class, if the type is persistent.
  - isEmbedded
```
boolean isEmbedded()
```
    This attribute is a hint to the implementation to store this value in the same structure as the class, rather than as a separate datastore structure. Defaults to true if the field is not a collection or map or persistence-capable object; defaults to false otherwise. Implementations are permitted to ignore this attribute.
  - setEmbedded
```
void setEmbedded(boolean embedded)
```
    This attribute is a hint to the implementation to store this value in the same structure as the class, rather than as a separate datastore structure. Defaults to true if the field is not a collection or map or persistence-capable objects; defaults to false otherwise. Implementations are permitted to ignore this attribute.
  - isEmbeddedPC
```
boolean isEmbeddedPC()
```
    Whether this is an embedded persistence capable value.
  - getEmbeddedMetaData
```
ClassMetaData getEmbeddedMetaData()
```
    The embedded class metadata for the value.
  - addEmbeddedMetaData
```
ClassMetaData addEmbeddedMetaData()
```
    Add embedded metadata for this value.
  - addEmbeddedMetaData
```
ClassMetaData addEmbeddedMetaData(int access)
```
    Add embedded metadata for this value with the given access type
  - getCascadeDelete
```
int getCascadeDelete()
```
    Cascade behavior for delete operation. Only applies to persistence-capable values. Options are:
    - CASCADE_NONE: No cascades.
    - CASCADE_IMMEDIATE: Value is deleted immediately when the owning object is deleted.
    - CASCADE_AUTO: Value will be deleted on flush if the owning object is deleted or if the value is removed from the owning object, and if the value is not assigned to another relation in the same transaction.
  - setCascadeDelete
```
void setCascadeDelete(int cascade)
```
    Cascade behavior for deletion.
    
    See Also:
    getCascadeDelete()
  - getCascadePersist
```
int getCascadePersist()
```
    Cascade behavior for persist operation. Only applies to persistence-capable values. Options are:
    - CASCADE_NONE: No cascades. If a transient relation is held at flush, an error is thrown.
    - CASCADE_IMMEDIATE: Value is persisted immediately when the owning object is persisted.
    - CASCADE_AUTO: Value will be persisted on flush.
  - setCascadePersist
```
void setCascadePersist(int cascade)
```
    Cascade behavior for persist operation.
    
    See Also:
    getCascadePersist()
  - setCascadePersist
```
void setCascadePersist(int cascade,
                     boolean checkPUDefault)
```
    Cascade behavior for persist operation.
    
    See Also:
    getCascadePersist()
  - getCascadeAttach
```
int getCascadeAttach()
```
    Cascade behavior for attach operation. Only applies to persistence-capable values. Options are:
    - CASCADE_NONE: No cascades of attach. Relation remains detached.
    - CASCADE_IMMEDIATE: Value is attached immediately.
  - setCascadeAttach
```
void setCascadeAttach(int cascade)
```
    Cascade behavior for attach operation.
    
    See Also:
    getCascadeAttach()
  - getCascadeDetach
```
int getCascadeDetach()
```
    Cascade behavior for detach operation. Only applies to persistence-capable values. Options are:
    - CASCADE_NONE: No cascades of detach. Relation remains attached.
    - CASCADE_IMMEDIATE: Value is detached immediately.
  - setCascadeDetach
```
void setCascadeDetach(int cascade)
```
    Cascade behavior for detach operation.
    
    See Also:
    getCascadeDetach()
  - getCascadeRefresh
```
int getCascadeRefresh()
```
    Cascade behavior for refresh operation. Only applies to persistence-capable values. Options are:
    - CASCADE_NONE: No cascades of refresh.
    - CASCADE_IMMEDIATE: Persistent value object is also refreshed.
    - CASCADE_AUTO: Value will be refreshed if it is in the current fetch groups.
  - setCascadeRefresh
```
void setCascadeRefresh(int cascade)
```
    Cascade behavior for refresh operation.
    
    See Also:
    getCascadeRefresh()
  - isSerialized
```
boolean isSerialized()
```
    Whether this value is serialized when stored.
  - setSerialized
```
void setSerialized(boolean serialized)
```
    Whether this value is serialized when stored.
  - getValueMappedBy
```
String getValueMappedBy()
```
    The field that this value shares a mapping with. Currently the only supported use for a mapped-by value is when a map field key is determined by a field of the persistence-capable map value.
  - setValueMappedBy
```
void setValueMappedBy(String mapped)
```
    The field that this value shares a mapping with. Currently the only supported use for a mapped-by value is when a map field key is determined by a field of the persistence-capable map value.
  - getValueMappedByMetaData
```
FieldMetaData getValueMappedByMetaData()
```
    The field that this value shares a mapping with. Currently the only supported use for a mapped-by value is when a map field key is determined by a field of the persistence-capable map value.
  - getTypeOverride
```
Class getTypeOverride()
```
    User-supplied type overriding assumed type based on field.
  - setTypeOverride
```
void setTypeOverride(Class type)
```
    User-supplied type overriding assumed type based on field.
  - getResolve
```
int getResolve()
```
    Resolve mode for metadata.
  - setResolve
```
void setResolve(int mode)
```
    Resolve mode for metadata.
  - setResolve
```
void setResolve(int mode,
              boolean on)
```
    Resolve mode for metadata.
  - resolve
```
boolean resolve(int mode)
```
    Resolve and validate metadata. Return true if already resolved.
  - copy
```
void copy(ValueMetaData vmd)
```
    Copy state from the given value to this one. Do not copy mapping information.

Interface ValueMetaData

Field Summary

Fields inherited from interface org.apache.openjpa.meta.MetaDataModes

Method Summary

Methods inherited from interface org.apache.openjpa.meta.MetaDataContext

Field Detail

CASCADE_NONE

CASCADE_IMMEDIATE

CASCADE_AUTO

MAPPED_BY_PK

Method Detail

getFieldMetaData

getType

setType

getTypeCode

setTypeCode

isTypePC

getTypeMetaData

getDeclaredType

setDeclaredType

getDeclaredTypeCode

setDeclaredTypeCode

isDeclaredTypePC

getDeclaredTypeMetaData

isEmbedded

setEmbedded

isEmbeddedPC

getEmbeddedMetaData

addEmbeddedMetaData

addEmbeddedMetaData

getCascadeDelete

setCascadeDelete

getCascadePersist

setCascadePersist

setCascadePersist

getCascadeAttach

setCascadeAttach

getCascadeDetach

setCascadeDetach

getCascadeRefresh

setCascadeRefresh

isSerialized

setSerialized

getValueMappedBy

setValueMappedBy

getValueMappedByMetaData

getTypeOverride

setTypeOverride

getResolve

setResolve

setResolve

resolve

copy