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## org.apache.fop.area
Class Trait.InternalLink

    java.lang.Object
      org.apache.fop.area.Trait.InternalLink

All Implemented Interfaces:
  java.io.Serializable

Enclosing class:
  Trait

    public static class Trait.InternalLink

extends java.lang.Object
implements java.io.Serializable

Class for internal link traits. Stores PageViewport key and producer ID

See Also:
  Serialized Form

Constructor Summary
`Trait.InternalLink(java.lang.String attrValue)` Create an InternalLink based on the given XML attribute value.
`Trait.InternalLink(java.lang.String pvKey, java.lang.String idRef)` Create an InternalLink to the given PageViewport and target ID

Method Summary
`java.lang.String` | `getIDRef()` Returns the target ID.
`java.lang.String` | `getPVKey()` Returns the key of the targeted PageViewport.
`static java.lang.String` | `makeXMLAttribute(java.lang.String pvKey, java.lang.String idRef)` Returns the XML attribute value for the given PV key and ID ref.
`static java.lang.String[]` | `parseXMLAttribute(java.lang.String attrValue)` Parses XML attribute value from the area tree into PageViewport key + IDRef strings.
`void` | `setIDRef(java.lang.String idRef)` Sets the target ID.
`void` | `setPVKey(java.lang.String pvKey)` Sets the key of the targeted PageViewport.
`java.lang.String` | `toString()` Return the human-friendly string for debugging.
`java.lang.String` | `xmlAttribute()` Returns the attribute value for this object as used in the area tree XML.

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

Constructor Detail

### Trait.InternalLink

    public Trait.InternalLink(java.lang.String pvKey,
                              java.lang.String idRef)

  Create an InternalLink to the given PageViewport and target ID

  Parameters:
    `pvKey` - the PageViewport key
    `idRef` - the target ID

### Trait.InternalLink

    public Trait.InternalLink(java.lang.String attrValue)

  Create an InternalLink based on the given XML attribute value. This is typically called when data are read from an XML area tree.

  Parameters:
    `attrValue` - attribute value to be parsed by InternalLink.parseXMLAttribute

Method Detail

### setPVKey

    public void setPVKey(java.lang.String pvKey)

  Sets the key of the targeted PageViewport.

  Parameters:
    `pvKey` - the PageViewport key

### getPVKey

    public java.lang.String getPVKey()

  Returns the key of the targeted PageViewport.

  Returns:
    the PageViewport key

### setIDRef

    public void setIDRef(java.lang.String idRef)

  Sets the target ID.

  Parameters:
    `idRef` - the target ID

### getIDRef

    public java.lang.String getIDRef()

  Returns the target ID.

  Returns:
    the target ID

### xmlAttribute

    public java.lang.String xmlAttribute()

  Returns the attribute value for this object as used in the area tree XML.

  Returns:
    a string of the type "(thisPVKey,thisIDRef)"

### makeXMLAttribute

    public static java.lang.String makeXMLAttribute(java.lang.String pvKey,
                                                    java.lang.String idRef)

  Returns the XML attribute value for the given PV key and ID ref. This value is used in the area tree XML.

  Parameters:
    `pvKey` - the PageViewport key of the link target
    `idRef` - the ID of the link target
  Returns:
    a string of the type "(thisPVKey,thisIDRef)"

### parseXMLAttribute

    public static java.lang.String[] parseXMLAttribute(java.lang.String attrValue)

  Parses XML attribute value from the area tree into PageViewport key + IDRef strings. If the attribute value is formatted like "(s1,s2)", then s1 and s2 are considered to be the PV key and the IDRef, respectively. Otherwise, the entire string is the PV key and the IDRef is null.

  Parameters:
    `attrValue` - the atribute value (PV key and possibly IDRef)
  Returns:
    a 2-String array containing the PV key and the IDRef. Both may be null.

### toString

    public java.lang.String toString()

  Return the human-friendly string for debugging.

  Overrides:
    `toString` in class `java.lang.Object`

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