MetaModel (JavaLite - Java, light as a feather 2.3.2-j8 API)

java.lang.Object
- org.javalite.activejdbc.MetaModel

All Implemented Interfaces:: Serializable

public class MetaModel
extends Object
implements Serializable

See Also:: Serialized Form

Constructor Summary

Constructors
Modifier Constructor and Description

protected MetaModel(String dbName, Class<? extends Model> modelClass, String dbType)

Constructors
Modifier	Constructor and Description
`protected`	`MetaModel(String dbName, Class<? extends Model> modelClass, String dbType)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`addAssociation(Association association)`
`boolean`	`cached()`
`protected void`	`checkAttribute(String attribute)` Checks if this model has a named attribute that has the same name as argument.
`void`	`clearShardTableName()` Clears sharding name of table attached to current thread.
`<A extends Association> A`	`getAssociationForTarget(Class<? extends Model> targetClass)` Returns association of this table with the target table.
`<A extends Association> A`	`getAssociationForTarget(Class<? extends Model> targetModelClass, Class<A> associationClass)` Returns association of this table with the target table.
`protected List<Association>`	`getAssociations()`
`List<Association>`	`getAssociationsForTarget(Class<? extends Model> targetModelClass)` Returns associations of this table with the target table.
`protected Set<String>`	`getAttributeNames()` Retrieves all attribute names.
`Set<String>`	`getAttributeNamesSkip(String... names)` Finds all attribute names except those provided as arguments.
`Set<String>`	`getAttributeNamesSkipGenerated()` Convenience method.
`Set<String>`	`getAttributeNamesSkipGenerated(boolean managed)` Finds all attribute names except managed like `id`, `created_at`, `updated_at` and `record_version`, depending on argument.
`Set<String>`	`getAttributeNamesSkipId()` Finds all attribute names except for id.
`Map<String,ColumnMetadata>`	`getColumnMetadata()` Provides column metadata map, keyed by attribute names.
`String[]`	`getCompositeKeys()` Returns optional composite primary key class
`String`	`getDbName()`
`protected static String`	`getDbName(Class<? extends Model> modelClass)`
`String`	`getDbType()`
`Dialect`	`getDialect()`
`String`	`getFKName()` FK name is a foreign key name used in relationships as a foreign key column in a child table (table represented by this instance is a parent table).
`String`	`getIdGeneratorCode()`
`String`	`getIdName()`
`protected List<Many2ManyAssociation>`	`getManyToManyAssociations(Association... excludedAssociations)`
`Class<? extends Model>`	`getModelClass()`
`protected List<OneToManyAssociation>`	`getOneToManyAssociations(Association... excludedAssociations)`
`String[]`	`getPartitionIDs()`
`protected List<OneToManyPolymorphicAssociation>`	`getPolymorphicAssociations(Association... excludedAssociations)`
`String`	`getTableName()` Returns table name currently associated with this model.
`String`	`getVersionColumn()`
`protected boolean`	`hasAssociation(Class<? extends Model> targetClass, Class<? extends Association> associationClass)`
`boolean`	`hasPartitionIDs()`
`boolean`	`isAssociatedTo(Class<? extends Model> targetModelClass)` Checks if there is association to the target model class.,
`boolean`	`isVersioned()` Returns true if this model supports optimistic locking, false if not
`void`	`removeAssociationForTarget(Class<? extends Model> modelClass)`
`void`	`setShardTableName(String tableName)` This feature is for sharding! Do not use it to set table names willy-nilly!
`protected boolean`	`tableExists()`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - MetaModel
```
protected MetaModel(String dbName,
                    Class<? extends Model> modelClass,
                    String dbType)
```
- Method Detail
  - hasPartitionIDs
```
public boolean hasPartitionIDs()
```
  - getPartitionIDs
```
public String[] getPartitionIDs()
```
  - setShardTableName
```
public void setShardTableName(String tableName)
```
    This feature is for sharding!
    Do not use it to set table names willy-nilly!
    
    Sets a table name for this model. The table name is attached to a current thread and will remain there until it is set with a different value or cleared with clearShardTableName() method. Table name set with this method overrides a table name naturally mapped to this model.
    
    Method getTableName() will return this value for all operations related to this table.
    
    Parameters:
    
    tableName - name of a table this model will read from current thread.
  - clearShardTableName
```
public void clearShardTableName()
```
    Clears sharding name of table attached to current thread. The name was supposedly attached by the setShardTableName(String) method. After execution of this class, the method getTableName() will be returning the value this MetaModel was initialized with during teh bootstrap phase.
  - getVersionColumn
```
public String getVersionColumn()
```
    Returns:
    
    name of the column for optimistic locking record version
  - getIdGeneratorCode
```
public String getIdGeneratorCode()
```
  - getDbName
```
public String getDbName()
```
  - cached
```
public boolean cached()
```
  - getModelClass
```
public Class<? extends Model> getModelClass()
```
  - getTableName
```
public String getTableName()
```
    Returns table name currently associated with this model. Table name can be modified for sharding using setShardTableName(String)
    
    Returns:
    
    table name currently associated with this model.
  - tableExists
```
protected boolean tableExists()
```
  - getAttributeNamesSkipId
```
public Set<String> getAttributeNamesSkipId()
```
    Finds all attribute names except for id.
    
    Returns:
    
    all attribute names except for id.
  - getAttributeNamesSkipGenerated
```
public Set<String> getAttributeNamesSkipGenerated()
```
    Convenience method. Calls getAttributeNamesSkipGenerated(boolean) and passes true as argument.
    
    Returns:
    
    list of all attributes except id, created_at, updated_at and record_version.
  - getAttributeNamesSkipGenerated
```
public Set<String> getAttributeNamesSkipGenerated(boolean managed)
```
    Finds all attribute names except managed like id, created_at, updated_at and record_version, depending on argument.
    
    Parameters:
    
    managed - if true, time managed attributes created_at and updated_at will not be included (they are managed automatically). If false (not managed) created_at and updated_at will be included in output.
    
    Returns:
    
    list of all attributes except id, created_at, updated_at and record_version, depending on argument.
  - getAttributeNamesSkip
```
public Set<String> getAttributeNamesSkip(String... names)
```
    Finds all attribute names except those provided as arguments.
    
    Returns:
    
    list of all attributes except those provided as arguments.
  - isVersioned
```
public boolean isVersioned()
```
    Returns true if this model supports optimistic locking, false if not
    
    Returns:
    
    true if this model supports optimistic locking, false if not
  - getAttributeNames
```
protected Set<String> getAttributeNames()
```
    Retrieves all attribute names.
    
    Returns:
    
    all attribute names.
  - getIdName
```
public String getIdName()
```
  - getCompositeKeys
```
public String[] getCompositeKeys()
```
    Returns optional composite primary key class
    
    Returns:
    
    composite primary key class
  - getAssociationForTarget
```
public <A extends Association> A getAssociationForTarget(Class<? extends Model> targetModelClass,
                                                         Class<A> associationClass)
```
    Returns association of this table with the target table. Will return null if there is no association.
    
    Parameters:
    
    targetModelClass - association of this model and the target model.
    
    associationClass - class of association in requested.
    
    Returns:
    
    association of this table with the target table. Will return null if there is no association with target table and specified type.
  - getAssociationForTarget
```
public <A extends Association> A getAssociationForTarget(Class<? extends Model> targetClass)
```
    Returns association of this table with the target table. Will return null if there is no association.
    
    Parameters:
    
    targetClass - association of this model and the target model.
    
    Returns:
    
    association of this table with the target table. Will return null if there is no association with target table and specified type.
  - getAssociationsForTarget
```
public List<Association> getAssociationsForTarget(Class<? extends Model> targetModelClass)
```
    Returns associations of this table with the target table. It is possible to have more than one association to a target table if a target table is the same as source. Usually this happens when tree structures are stored in the same table (category has many categories).
    
    Parameters:
    
    targetModelClass - association of this model and the target model.
    
    Returns:
    
    list of associations of this table with the target table. Will return empty list if none found. table and specified type.
  - addAssociation
```
protected void addAssociation(Association association)
```
  - hasAssociation
```
protected boolean hasAssociation(Class<? extends Model> targetClass,
                                 Class<? extends Association> associationClass)
```
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getFKName
```
public String getFKName()
```
    FK name is a foreign key name used in relationships as a foreign key column in a child table (table represented by this instance is a parent table). The FK name is derived using Inflector: It is a singular version of this table name plus "_id".
    
    Returns:
    
    foreign key name used in relationships as a foreign key column in a child table.
  - getOneToManyAssociations
```
protected List<OneToManyAssociation> getOneToManyAssociations(Association... excludedAssociations)
```
  - getPolymorphicAssociations
```
protected List<OneToManyPolymorphicAssociation> getPolymorphicAssociations(Association... excludedAssociations)
```
  - getManyToManyAssociations
```
protected List<Many2ManyAssociation> getManyToManyAssociations(Association... excludedAssociations)
```
  - getDbType
```
public String getDbType()
```
  - getDialect
```
public Dialect getDialect()
```
  - getAssociations
```
protected List<Association> getAssociations()
```
  - checkAttribute
```
protected void checkAttribute(String attribute)
```
    Checks if this model has a named attribute that has the same name as argument. Throws IllegalArgumentException in case it does not find it.
    
    Parameters:
    
    attribute - name of attribute or association target.
  - getDbName
```
protected static String getDbName(Class<? extends Model> modelClass)
```
  - getColumnMetadata
```
public Map<String,ColumnMetadata> getColumnMetadata()
```
    Provides column metadata map, keyed by attribute names. Table columns correspond to ActiveJDBC model attributes.
    
    Returns:
    
    Provides column metadata map, keyed by attribute names.
  - isAssociatedTo
```
public boolean isAssociatedTo(Class<? extends Model> targetModelClass)
```
    Checks if there is association to the target model class.,
    
    Parameters:
    
    targetModelClass - class of a model that will be checked for association from current model.
    
    Returns:
    
    true if any association exists such that the current model is a source and targetModelClass is a target.
  - removeAssociationForTarget
```
public void removeAssociationForTarget(Class<? extends Model> modelClass)
```

Class MetaModel

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

MetaModel

Method Detail

hasPartitionIDs

getPartitionIDs

setShardTableName

clearShardTableName

getVersionColumn

getIdGeneratorCode

getDbName

cached

getModelClass

getTableName

tableExists

getAttributeNamesSkipId

getAttributeNamesSkipGenerated

getAttributeNamesSkipGenerated

getAttributeNamesSkip

isVersioned

getAttributeNames

getIdName

getCompositeKeys

getAssociationForTarget

getAssociationForTarget

getAssociationsForTarget

addAssociation

hasAssociation

toString

getFKName

getOneToManyAssociations

getPolymorphicAssociations

getManyToManyAssociations

getDbType

getDialect

getAssociations

checkAttribute

getDbName

getColumnMetadata

isAssociatedTo

removeAssociationForTarget