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## org.eclipse.birt.report.model.api.extension
Class PropertyDefinition

    java.lang.Object
      org.eclipse.birt.report.model.api.extension.PropertyDefinition

All Implemented Interfaces:
  IPropertyDefinition

    public abstract class PropertyDefinition

extends java.lang.Object
implements IPropertyDefinition

Extension adapter class for the IPropertyDefintion. By default, the extension property definition has no resource key for the display name, no choices, no members, no default value, is not a list and is not in any property group of the extension. At the same time, the subclasses should override the some getters about the required name of the property, required display name key of the property and the required type,which is one of those defined in `PropertyType`.

Constructor Summary
`PropertyDefinition()`

Method Summary
`java.util.List` | `getChoices()` Returns a list of choices if the property is a choice (type is CHOICE_TYPE).
`java.lang.Object` | `getDefaultValue()` Returns the default value for the property.
`java.lang.String` | `getDisplayNameID()` Returns the resource key for the localized display name of the property.
`java.lang.String` | `getGroupNameID()` Returns the resource key for display name of the property group.
`java.util.List` | `getMembers()` Returns a list of member definitions if the property is a structure (type is TBD).
`IMethodInfo` | `getMethodInfo()` Returns the method information of this property.
`abstract java.lang.String` | `getName()` Returns the internal name of the property.
`abstract int` | `getType()` Returns the property type using one of the types defined in the `PropertyType`class.
`boolean` | `isList()` Returns whether this property represents a list of properties instead of a single property.
`boolean` | `isReadOnly()` Determines whether this property is read-only or not.
`boolean` | `isVisible()` Determines whether this property is visible in property viewer.

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

Constructor Detail

### PropertyDefinition

    public PropertyDefinition()

Method Detail

### getGroupNameID

    public java.lang.String getGroupNameID()

  Description copied from interface: `IPropertyDefinition`
  Returns the resource key for display name of the property group. Property groups are used in the generic property sheet to organize properties. If the resource key is null, then no group is used.

  Specified by:
    `getGroupNameID` in interface `IPropertyDefinition`
  Returns:
    the optional resource key for property group name

### getName

    public abstract java.lang.String getName()

  Description copied from interface: `IPropertyDefinition`
  Returns the internal name of the property. This is a non-localized, unique name used in the get/set property methods. It is required. BIRT encourages names that match the BIRT property syntax: propName, so that the properties are easy to use in scripts.

  Specified by:
    `getName` in interface `IPropertyDefinition`
  Returns:
    the internal property name

### getDisplayNameID

    public java.lang.String getDisplayNameID()

  Description copied from interface: `IPropertyDefinition`
  Returns the resource key for the localized display name of the property. This is the name that appears in the property sheet UI. It is optional. If omitted, the internal name will be displayed instead.

  Specified by:
    `getDisplayNameID` in interface `IPropertyDefinition`
  Returns:
    the optional resource key for the localized display name of the property

### getType

    public abstract int getType()

  Description copied from interface: `IPropertyDefinition`
  Returns the property type using one of the types defined in the `PropertyType`class. It is required. If the model does not provide a suitable type, then either map the property to one of the supported types, or don't expose it though the generic property mechanism.

  Specified by:
    `getType` in interface `IPropertyDefinition`
  Returns:
    the property type using one of the model's types

### isList

    public boolean isList()

  Description copied from interface: `IPropertyDefinition`
  Returns whether this property represents a list of properties instead of a single property.

  Specified by:
    `isList` in interface `IPropertyDefinition`
  Returns:
    true if the property is a list, false if not

### getChoices

    public java.util.List getChoices()

  Description copied from interface: `IPropertyDefinition`
  Returns a list of choices if the property is a choice (type is CHOICE_TYPE). Should return null for non-choice properties.

  Specified by:
    `getChoices` in interface `IPropertyDefinition`
  Returns:
    a list of `IChoiceDefinition`objects

### getMethodInfo

    public IMethodInfo getMethodInfo()

  Description copied from interface: `IPropertyDefinition`
  Returns the method information of this property.

  Specified by:
    `getMethodInfo` in interface `IPropertyDefinition`
  Returns:
    the method information of this property. Return null, if this property is not a method property.

### getDefaultValue

    public java.lang.Object getDefaultValue()

  Description copied from interface: `IPropertyDefinition`
  Returns the default value for the property. Needed only if the element supports styles or inheritance. Not needed otherwise. No default is needed for a structure or list property.

  Specified by:
    `getDefaultValue` in interface `IPropertyDefinition`
  Returns:
    the default value of the property

### getMembers

    public java.util.List getMembers()

  Description copied from interface: `IPropertyDefinition`
  Returns a list of member definitions if the property is a structure (type is TBD). Should return null for non-structure properties.

  Specified by:
    `getMembers` in interface `IPropertyDefinition`
  Returns:
    the list of members as a collection of IPropertyDefn objects

### isReadOnly

    public boolean isReadOnly()

  Description copied from interface: `IPropertyDefinition`
  Determines whether this property is read-only or not. If this property is read only and can not been edited, return true; otherwise return false.

  Specified by:
    `isReadOnly` in interface `IPropertyDefinition`
  Returns:
    true if this property is read-only, otherwise false

### isVisible

    public boolean isVisible()

  Description copied from interface: `IPropertyDefinition`
  Determines whether this property is visible in property viewer. If this property is visible in the property viewer, return true; otherwise false.

  Specified by:
    `isVisible` in interface `IPropertyDefinition`
  Returns:
    true if this property is visible in the property viewer, otherwise false

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