Package commonj.sdo

Interface Property

All Known Implementing Classes:
SDOProperty
public interface Property
A representation of a Property in the type of a data object.

  • Method Summary

    Modifier and Type
    Method
    Description
    Object
    get(Property property)
    Returns the value of the specified instance property of this Property.
    List
    getAliasNames()
    Returns a list of alias names for this Property.
    Type
    getContainingType()
    Returns the containing type of this Property.
    Object
    getDefault()
    Returns the default value this Property will have in a data object where the Property hasn't been set.
    List
    getInstanceProperties()
    Returns a read-only List of instance Properties available on this Property.
    String
    getName()
    Returns the name of the Property.
    Property
    getOpposite()
    Returns the opposite Property if the Property is bi-directional or null otherwise.
    Type
    getType()
    Returns the type of the Property.
    boolean
    isContainment()
    Returns whether the Property is containment, i.e., whether it represents by-value composition.
    boolean
    isMany()
    Returns whether the Property is many-valued.
    boolean
    isNullable()
    Returns whether or not instances of this property can be set to null.
    boolean
    isOpenContent()
    Returns whether or not this is an open content Property.
    boolean
    isReadOnly()
    Returns true if values for this Property cannot be modified using the SDO APIs.

  • Method Details

    • getName

      String getName()
      Returns the name of the Property.
      Returns:
      the Property name.

    • getType

      Type getType()
      Returns the type of the Property.
      Returns:
      the Property type.

    • isMany

      boolean isMany()
      Returns whether the Property is many-valued.
      Returns:
      true if the Property is many-valued.

    • isContainment

      boolean isContainment()
      Returns whether the Property is containment, i.e., whether it represents by-value composition.
      Returns:
      true if the Property is containment.

    • getContainingType

      Type getContainingType()
      Returns the containing type of this Property.
      Returns:
      the Property's containing type.
      See Also:

    • getDefault

      Object getDefault()
      Returns the default value this Property will have in a data object where the Property hasn't been set.
      Returns:
      the default value.

    • isReadOnly

      boolean isReadOnly()
      Returns true if values for this Property cannot be modified using the SDO APIs. When true, DataObject.set(Property property, Object value) throws an exception. Values may change due to other factors, such as services operating on DataObjects.
      Returns:
      true if values for this Property cannot be modified.

    • getOpposite

      Property getOpposite()
      Returns the opposite Property if the Property is bi-directional or null otherwise.
      Returns:
      the opposite Property if the Property is bi-directional or null

    • getAliasNames

      List getAliasNames()
      Returns a list of alias names for this Property.
      Returns:
      a list of alias names for this Property.

    • isNullable

      boolean isNullable()
      Returns whether or not instances of this property can be set to null. The effect of calling set(null) on a non-nullable property is not specified by SDO.
      Returns:
      true if this property is nullable.

    • isOpenContent

      boolean isOpenContent()
      Returns whether or not this is an open content Property.
      Returns:
      true if this property is an open content Property.

    • getInstanceProperties

      List getInstanceProperties()
      Returns a read-only List of instance Properties available on this Property.

      This list includes, at a minimum, any open content properties (extensions) added to the object before defining the Property's Type. Implementations may, but are not required to in the 2.1 version of SDO, provide additional instance properties.

      Returns:
      the List of instance Properties on this Property.

    • get

      Object get(Property property)
      Returns the value of the specified instance property of this Property.
      Parameters:
      property - one of the properties returned by getInstanceProperties().
      Returns:
      the value of the specified property.
      See Also: