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## com.bbn.openmap.layer.link
Class LinkProperties

    java.lang.Object
      java.util.Dictionary
          java.util.Hashtable
              java.util.Properties
                  com.bbn.openmap.layer.link.LinkProperties

All Implemented Interfaces:
  java.lang.Cloneable, LinkGraphicConstants, LinkPropertiesConstants, java.util.Map, java.io.Serializable

public class LinkProperties
extends java.util.Properties
implements LinkPropertiesConstants, LinkGraphicConstants

A LinkProperties object is a set of key-value strings that are going to be sent over the link. In java-land, they are handled with the Properties object. In link-land, they are handled like an array of strings. Requests have a properties section, and graphic objects have them as well.

See Also:
  Serialized Form

Field Summary
`static LinkProperties` | `EMPTY_PROPERTIES` Used by the graphics if no properties were sent with it.
`protected java.util.Hashtable` | `renderAttributesCache`
`protected java.lang.Boolean` | `reuseProperties`

Fields inherited from class java.util.Properties
`defaults`

Fields inherited from interface com.bbn.openmap.layer.link.LinkPropertiesConstants
`LPC_BACKWARD_DIAG_PATTERN, LPC_CENTER_LAT, LPC_CENTER_LONG, LPC_CLEAR_PROPERTIES, LPC_CLEAR_PROPERTIES_CHAR, LPC_CROSS_PATTERN, LPC_DASH, LPC_DASH_DOT, LPC_DASH_DOT_DOT, LPC_DIAG_CROSS_PATTERN, LPC_DOT, LPC_FILLCOLOR, LPC_FILLPATTERN, LPC_FORWARD_DIAG_PATTERN, LPC_GRAPHICID, LPC_HEIGHT, LPC_HIGHLIGHTCOLOR, LPC_HORIZONTAL_PATTERN, LPC_HTML, LPC_INFO, LPC_LATMAX, LPC_LATMIN, LPC_LINECOLOR, LPC_LINESTYLE, LPC_LINEWIDTH, LPC_LINKRASTERIMAGEURL, LPC_LINKROTATION, LPC_LINKTEXTBASELINE, LPC_LINKTEXTFONT, LPC_LINKTEXTSTRING, LPC_LONG_DASH, LPC_LONMAX, LPC_LONMIN, LPC_MESSAGE, LPC_OLD_FILLCOLOR, LPC_OLD_FILLPATTERN, LPC_OLD_HIGHLIGHTCOLOR, LPC_OLD_LINECOLOR, LPC_OLD_LINESTYLE, LPC_OLD_LINEWIDTH, LPC_OLD_LINKTEXTFONT, LPC_OLD_LINKTEXTSTRING, LPC_PROJECTION, LPC_PROPERY_MANAGEMENT_POLICY, LPC_PROPERY_MANAGEMENT_POLICY_CHAR, LPC_REUSE_PROPERTIES, LPC_REUSE_PROPERTIES_CHAR, LPC_SCALE, LPC_SOLID, LPC_SOLID_PATTERN, LPC_TIME, LPC_URL, LPC_VERTICAL_PATTERN, LPC_WIDTH`

Fields inherited from interface com.bbn.openmap.layer.link.LinkGraphicConstants
`BASELINE_BOTTOM, BASELINE_MIDDLE, BASELINE_TOP, BLACK_COLOR_STRING, CLEAR_COLOR_STRING, COLORMODEL_DIRECT, COLORMODEL_INDEXED, COLORMODEL_URL, COLUMN_MAJOR, COORDMODE_ORIGIN, COORDMODE_PREVIOUS, DECIMAL_DEGREES, GRAPHICTYPE_ARC, GRAPHICTYPE_BITMAP, GRAPHICTYPE_CIRCLE, GRAPHICTYPE_ELLIPSE, GRAPHICTYPE_GRAPHIC, GRAPHICTYPE_GRID, GRAPHICTYPE_LINE, GRAPHICTYPE_POINT, GRAPHICTYPE_POLY, GRAPHICTYPE_RASTER, GRAPHICTYPE_RECTANGLE, GRAPHICTYPE_TEXT, JUSTIFY_CENTER, JUSTIFY_LEFT, JUSTIFY_RIGHT, KM, LINETYPE_GREATCIRCLE, LINETYPE_RHUMB, LINETYPE_STRAIGHT, LINETYPE_UNKNOWN, MILES, NMILES, RADIANS, RENDERTYPE_LATLON, RENDERTYPE_OFFSET, RENDERTYPE_UNKNOWN, RENDERTYPE_XY, ROW_MAJOR`

Constructor Summary
`LinkProperties()`
`LinkProperties(java.io.DataInput dis)` Create a LinkProperties, and read it's contents off a link.
`LinkProperties(Link link)` Create a LinkProperties, and read it's contents off a link.
`LinkProperties(LinkProperties settings)`
`LinkProperties(java.lang.String keyString, java.lang.String valueString)` Create a LinkProperties object with it's first pair.

Method Summary
`java.awt.Paint` | `getFillPaint()`
`java.awt.Paint` | `getPaint(java.lang.String paintProperty, java.lang.String defaultPaintString)`
`java.lang.Boolean` | `getReuseProperties()`
`java.awt.Stroke` | `getStroke()`
`static LinkProperties` | `loadPropertiesIntoOMGraphic(java.io.DataInput dis, OMGraphic omg, LinkProperties propertiesBuffer)` New, static method for more efficient property handling and loading the properties into the OMGraphic.
`void` | `read(java.io.DataInput dis)` Read the link to create the properties object.
`static LinkProperties` | `read(java.io.DataInput dis, LinkProperties props)` New, static method for more efficient property handling.
`void` | `readArgs(int numArgs, java.io.DataInput dis)` Read the link to fetch properties for this LinkProperties object.
`void` | `setProperties(OMGraphic omg)` Method to call on the LinkProperties object to set the DrawingAttributes properties on an OMGraphic.
`java.lang.Object` | `setProperty(java.lang.String key, java.lang.String value)` Calls the hashtable method `put`.
`void` | `setReuseProperties(java.lang.Boolean reuseProperties)` A flag that controls how LinkProperties are managed.
`void` | `write(java.io.DataOutputStream dos)` Write the properties as several strings.
`void` | `write(Link link)` Write the properties as several strings.

Methods inherited from class java.util.Properties
`getProperty, getProperty, list, list, load, propertyNames, save, store`

Methods inherited from class java.util.Hashtable
`clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, rehash, remove, size, toString, values`

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

Field Detail

### EMPTY_PROPERTIES

    public static final LinkProperties EMPTY_PROPERTIES

  Used by the graphics if no properties were sent with it. No properties can be set on this LinkProperties object.

### reuseProperties

    protected java.lang.Boolean reuseProperties

### renderAttributesCache

    protected java.util.Hashtable renderAttributesCache

Constructor Detail

### LinkProperties

    public LinkProperties()

### LinkProperties

    public LinkProperties(LinkProperties settings)

### LinkProperties

    public LinkProperties(java.lang.String keyString,
                          java.lang.String valueString)

  Create a LinkProperties object with it's first pair.

Parameters:
  `keyString` - the key for the pair.
  `valueString` - the value for the pair.

### LinkProperties

    public LinkProperties(Link link)
                   throws java.io.IOException

  Create a LinkProperties, and read it's contents off a link. Assumes the properties are the next thing to be read, starting with the string count.

Parameters:
  `link` - the Link to read properties from
Throws:
  `IOException.`
  `java.io.IOException`

### LinkProperties

    public LinkProperties(java.io.DataInput dis)
                   throws java.io.IOException

  Create a LinkProperties, and read it's contents off a link.

Parameters:
  `dis` - DataInput to read from.
Throws:
  `IOException.`
  `java.io.IOException`

Method Detail

### getReuseProperties

    public java.lang.Boolean getReuseProperties()

### setReuseProperties

    public void setReuseProperties(java.lang.Boolean reuseProperties)

  A flag that controls how LinkProperties are managed. Setting this object to Boolean.TRUE will indicate that the LinkProperties object decoded previously should be reused, with any properties currently set in this object overwriting the same property previously received. Setting it to Boolean.FALSE, or setting it to null, will indicate than any buffered LinkProperty object should be cleared before these properties are read.

  Parameters:
    `reuseProperties` -

### setProperty

    public java.lang.Object setProperty(java.lang.String key,
                                        java.lang.String value)

  Calls the hashtable method `put`. Provided to provide a similar interface in jdk1.1.x or jdk1.2.x, enforcing that only strings can be in properties files.

### write

    public void write(Link link)
               throws java.io.IOException

  Write the properties as several strings. There is a string count (Key count + value count), and then for each key and value string, a character count, and the characters.

  Parameters:
    `link` - the link to write to.
  Throws:
    `java.io.IOException`

### write

    public void write(java.io.DataOutputStream dos)
               throws java.io.IOException

  Write the properties as several strings. There is a string count (Key count + value count), and then for each key and value string, a character count, and the characters.

  Parameters:
    `dos` - the DataOutputStream to write to.
  Throws:
    `java.io.IOException`

### read

    public void read(java.io.DataInput dis)
              throws java.io.IOException

  Read the link to create the properties object. Assumes the properties are the next thing to be read, starting with the string count.

  Parameters:
    `dis` - DataInput to read from.
  Throws:
    `IOException.`
    `java.io.IOException`

### readArgs

    public void readArgs(int numArgs,
                         java.io.DataInput dis)
                  throws java.io.IOException

  Read the link to fetch properties for this LinkProperties object. Assumes the property count has been read and is being provided to this method

  Parameters:
    `numArgs` - the number of key + value strings to read.
    `dis` - DataInput to read from.
  Throws:
    `IOException.`
    `java.io.IOException`

### read

    public static LinkProperties read(java.io.DataInput dis,
                                      LinkProperties props)
                               throws java.io.IOException

  New, static method for more efficient property handling.

  Parameters:
    `dis` -
    `props` -
  Returns:
    if there are no properties, the EMPTY_PROPERTIES object is returned. If there are properties and props == null, then a new LinkProperties object is allocated and returned, otherwise, props is returned.
  Throws:
    `IOException`

### loadPropertiesIntoOMGraphic

    public static LinkProperties loadPropertiesIntoOMGraphic(java.io.DataInput dis,
                                                             OMGraphic omg,
                                                             LinkProperties propertiesBuffer)
                                                      throws java.io.IOException

  New, static method for more efficient property handling and loading the properties into the OMGraphic.

  Parameters:
    `dis` -
    `omg` -
  Returns:
    if there are no properties, the EMPTY_PROPERTIES object is returned. If there are properties and props == null, then a new LinkProperties object is allocated and returned, otherwise, props is returned. The OMGraphic appObject is set with the read properties.
  Throws:
    `java.io.IOException`

### setProperties

    public void setProperties(OMGraphic omg)

  Method to call on the LinkProperties object to set the DrawingAttributes properties on an OMGraphic. Will set the line and select colors, fill paints (including patterns) and stroke based on the properties contained in this LinkProperties object. Will set default values in the OMGraphic if the applicable properties aren't defined, and will set the LinkProperties in the AppObject of the OMGraphic.

### getStroke

    public java.awt.Stroke getStroke()

### getPaint

    public java.awt.Paint getPaint(java.lang.String paintProperty,
                                   java.lang.String defaultPaintString)

### getFillPaint

    public java.awt.Paint getFillPaint()

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