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## org.apache.cayenne.map
Class ObjAttribute

    java.lang.Object
      org.apache.cayenne.map.Attribute
          org.apache.cayenne.map.ObjAttribute

All Implemented Interfaces:
  Serializable, CayenneMapEntry, XMLSerializable

Direct Known Subclasses:
  EmbeddedAttribute, EOObjAttribute

    public class ObjAttribute

extends Attribute

An ObjAttribute is a mapping descriptor of a Java class property.

Author:
  Misha Shengaout, Andrus Adamchik
See Also:
  Serialized Form

Field Summary
`protected String` | `dbAttributePath`
`protected String` | `type`
`protected boolean` | `usedForLocking`

Fields inherited from class org.apache.cayenne.map.Attribute
`entity, name`

Constructor Summary
`ObjAttribute()`
`ObjAttribute(String name)`
`ObjAttribute(String name, String type, ObjEntity entity)`

Method Summary
`void` | `encodeAsXML(XMLEncoder encoder)` Prints itself as XML to the provided XMLEncoder.
`ObjAttribute` | `getClientAttribute()` Returns an ObjAttribute stripped of any server-side information, such as DbAttribute mapping.
`DbAttribute` | `getDbAttribute()` Returns a DbAttribute mapped by this ObjAttribute.
`String` | `getDbAttributeName()` Returns the the name of the mapped DbAttribute.
`String` | `getDbAttributePath()` Returns a dot-separated path that starts in the root DbEntity that maps to this attribute's ObjEntity and spans zero or more relationships, always ending in a DbAttribute name.
`Iterator<CayenneMapEntry>` | `getDbPathIterator()`
`Class<?>` | `getJavaClass()` Returns Java class of an object property described by this attribute.
`String` | `getType()` Returns fully qualified Java class name of the object property represented by this attribute.
`boolean` | `isCompound()` Deprecated. since 3.0 use 'isFlattened'.
`boolean` | `isFlattened()` Returns whether this attribute is "flattened", meaning that it points to a column from an entity other than the DbEntity mapped to the parent ObjEntity.
`boolean` | `isUsedForLocking()` Returns whether this attribute should be used for locking.
`void` | `setDbAttribute(DbAttribute dbAttribute)` Deprecated. since 3.0 - this method only works for non-flattened attributes. 'setDbAttributePath' should be used instead.
`void` | `setDbAttributeName(String name)` Deprecated. since 3.0 use `setDbAttributePath(String)`.
`void` | `setDbAttributePath(String dbAttributePath)`
`void` | `setType(String type)` Sets the type of the data object property.
`void` | `setUsedForLocking(boolean usedForLocking)` Sets whether this attribute should be used for locking.

Methods inherited from class org.apache.cayenne.map.Attribute
`getEntity, getName, getParent, setEntity, setName, setParent, toString`

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

Field Detail

### type

    protected String type

### usedForLocking

    protected boolean usedForLocking

### dbAttributePath

    protected String dbAttributePath

Constructor Detail

### ObjAttribute

    public ObjAttribute()

### ObjAttribute

    public ObjAttribute(String name)

### ObjAttribute

    public ObjAttribute(String name,
                        String type,
                        ObjEntity entity)

Method Detail

### getJavaClass

    public Class<?> getJavaClass()

  Returns Java class of an object property described by this attribute. Wraps any thrown exceptions into CayenneRuntimeException.

### encodeAsXML

    public void encodeAsXML(XMLEncoder encoder)

  Prints itself as XML to the provided XMLEncoder.

  Specified by:
    `encodeAsXML` in interface `XMLSerializable`
  Specified by:
    `encodeAsXML` in class `Attribute`
  Since:
    1.1

### getType

    public String getType()

  Returns fully qualified Java class name of the object property represented by this attribute.

### setType

    public void setType(String type)

  Sets the type of the data object property. Type is expected to be a fully qualified Java class name.

### isUsedForLocking

    public boolean isUsedForLocking()

  Returns whether this attribute should be used for locking.

  Since:
    1.1

### setUsedForLocking

    public void setUsedForLocking(boolean usedForLocking)

  Sets whether this attribute should be used for locking.

  Since:
    1.1

### getDbAttribute

    public DbAttribute getDbAttribute()

  Returns a DbAttribute mapped by this ObjAttribute.

### getDbPathIterator

    public Iterator<CayenneMapEntry> getDbPathIterator()

### setDbAttribute

    public void setDbAttribute(DbAttribute dbAttribute)

  Deprecated. since 3.0 - this method only works for non-flattened attributes. 'setDbAttributePath' should be used instead.

  Set mapped DbAttribute.

### getDbAttributeName

    public String getDbAttributeName()

  Returns the the name of the mapped DbAttribute. This value is the same as "dbAttributePath" for regular attributes mapped to columns. It is equql to the last path component for the flattened attributes.

### setDbAttributeName

    public void setDbAttributeName(String name)

  Deprecated. since 3.0 use `setDbAttributePath(String)`.

  Sets the name of the mapped DbAttribute.

### setDbAttributePath

    public void setDbAttributePath(String dbAttributePath)

### getDbAttributePath

    public String getDbAttributePath()

  Returns a dot-separated path that starts in the root DbEntity that maps to this attribute's ObjEntity and spans zero or more relationships, always ending in a DbAttribute name.

### isCompound

    public boolean isCompound()

  Deprecated. since 3.0 use 'isFlattened'.

### isFlattened

    public boolean isFlattened()

  Returns whether this attribute is "flattened", meaning that it points to a column from an entity other than the DbEntity mapped to the parent ObjEntity.

  Since:
    3.0

### getClientAttribute

    public ObjAttribute getClientAttribute()

  Returns an ObjAttribute stripped of any server-side information, such as DbAttribute mapping.

  Since:
    1.2

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