Package org.freeplane.api

# Interface Attributes

All Superinterfaces:
  `AttributesRO`

All Known Subinterfaces:
  `Proxy.Attributes`

public interface Attributes extends AttributesRO
Node's attribute table: `node.attributes` - read-write.

Notes on attribute setters:

- All setter methods try to convert strings to dates, numbers or URIs.
- All setter methods apply a default formatting (for display) of the value for dates and numbers.
- Attributes don't have style properties so the value objects must know about the right formatting for themselves.
- To enforce a certain formatting use format():

      node['creationDate'] = format(new Date(), 'MM/yyyy')

Examples:

       // == text
       node["attribute name"] = "a value"
       assert node["attribute name"].text == "a value"
       assert node.attributes.getFirst("attribute name") == "a value" // the same

       // == numbers and others
       // converts numbers and other stuff with toString()
       node["a number"] = 1.2
       assert node["a number"].text == "1.2"
       assert node["a number"].num == 1.2d

         *   // == dates
       def date = new Date()
       node["a date"] = date
       assert node["a date"].object.getClass().simpleName == "FormattedDate"
       assert node["a date"].date == format(date)

       // == enforce formats on attribute values
       node["another date"] = format(date, 'yyyy|MM|dd')
       assert node["another date"].date == format(date, 'yyyy|MM|dd')

       // change the date while keeping the silly format
       def index = node.attributes.findAttribute("another date")
       node.attributes.set(index, new Date(0L))

       // == URIs
       def uri = new URI("http://www.freeplane.org")
       node["uri"] = uri
       assert node["uri"].object.getClass().simpleName == "URI"
       assert node["uri"].object == uri

       // == remove an attribute
       node["removed attribute"] = "to be removed"
       assert node["removed attribute"] == "to be removed"
       node["removed attribute"] = null
       assert node.attributes.findFirst("removed attribute") == -1

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `add(String name, Object value)`
  adds an attribute no matter if an attribute with the given name already exists.
  `void`
  `add(String name, Object value, String format)`
  adds an attribute with formatting pattern no matter if an attribute with the given name already exists.
  `void`
  `clear()`
  removes all attributes.
  `Iterator<Map.Entry<String,Object>>`
  `iterator()`
  allows application of Groovy collection methods like each(), collect(), ...
  `void`
  `optimizeWidths()`
  optimize widths of attribute view columns according to contents.
  `void`
  `remove(int index)`
  removes the attribute at the given index.
  `boolean`
  `remove(String name)`
  Deprecated.
  before 1.1 - use `remove(int)` or `removeAll(String)` instead.
  `boolean`
  `removeAll(String name)`
  removes all attributes with this name.
  `void`
  `set(int index, Object value)`
  sets the value of the attribute at an index.
  `void`
  `set(int index, String name, Object value)`
  sets name and value of the attribute at the given index.
  `void`
  `set(int index, String name, Object value, String format)`
  sets name, value and format pattern of the attribute at the given index.
  `void`
  `set(String name, Object value)`
  adds an attribute if there is no attribute with the given name or changes the value of the first attribute with the given name.
  `void`
  `setFormat(int index, String format)`
  sets format pattern to the attribute at the given index.
  `default Stream<Map.Entry<String,Object>>`
  `stream()`
  Returns stream of attributes represented by map entries.

  ### Methods inherited from interface org.freeplane.api.AttributesRO

  `containsKey, findAttribute, findFirst, findValues, get, get, getAll, getAttributeNames, getFirst, getKey, getMap, getNames, getTransformed, getValues, isEmpty, size`

- ## Method Details

  - ### set

    void set(int index, Object value)
    sets the value of the attribute at an index. This method will not create new attributes.
    Throws:
      `IndexOutOfBoundsException` - if index is out of range, i. e. `index < 0 || index >= size()`.

  - ### set

    void set(int index, String name, Object value)
    sets name and value of the attribute at the given index. This method will not create new attributes.
    Throws:
      `IndexOutOfBoundsException` - if index is out of range, i. e. `index < 0 || index >= size()`.

  - ### set

    void set(int index, String name, Object value, String format)
    sets name, value and format pattern of the attribute at the given index. This method will not create new attributes.
    Throws:
      `IndexOutOfBoundsException` - if index is out of range, i. e. `index < 0 || index >= size()`.

  - ### setFormat

    void setFormat(int index, String format)
    sets format pattern to the attribute at the given index.
    Throws:
      `IndexOutOfBoundsException` - if index is out of range, i. e. `index < 0 || index >= size()`.

  - ### remove

    @Deprecated boolean remove(String name)
    Deprecated.
    before 1.1 - use `remove(int)` or `removeAll(String)` instead.
    removes the first attribute with this name.
    Returns:
      true on removal of an existing attribute and false otherwise.

  - ### removeAll

    boolean removeAll(String name)
    removes all attributes with this name.
    Returns:
      true on removal of an existing attribute and false otherwise.

  - ### remove

    void remove(int index)
    removes the attribute at the given index.
    Throws:
      `IndexOutOfBoundsException` - if index is out of range, i. e. `index < 0 || index >= size()`.

  - ### set

    void set(String name, Object value)
    adds an attribute if there is no attribute with the given name or changes the value of the first attribute with the given name.

  - ### add

    void add(String name, Object value)
    adds an attribute no matter if an attribute with the given name already exists.

  - ### add

    void add(String name, Object value, String format)
    adds an attribute with formatting pattern no matter if an attribute with the given name already exists.

  - ### clear

    void clear()
    removes all attributes.
    Since:
      1.2

  - ### iterator

    Iterator<Map.Entry<String,Object>> iterator()
    allows application of Groovy collection methods like each(), collect(), ...

           def keyList = node.attributes.collect { it.key }
           def values = node.attributes.collect { it.value }
           node.attributes.each {
               if (it.key =~ /.*day/)
                   it.value += ' days'
           }

    Since:
      1.3.2

  - ### stream

    default Stream<Map.Entry<String,Object>> stream()
    Returns stream of attributes represented by map entries.
    Since:
      1.3.10
    See Also:
      - `iterator()`

  - ### optimizeWidths

    void optimizeWidths()
    optimize widths of attribute view columns according to contents.
    Since:
      1.4