Package net.sf.saxon.om

Class EmptyAttributeMap

java.lang.Object
net.sf.saxon.om.EmptyAttributeMap
All Implemented Interfaces:
Iterable<AttributeInfo>, AttributeMap
public class EmptyAttributeMap extends Object implements AttributeMap
An implementation of AttributeMap representing an empty AttributeMap

  • Method Details

    • getInstance

      public static EmptyAttributeMap getInstance()

    • size

      public int size()
      Return the number of attributes in the map.
      Specified by:
      size in interface AttributeMap
      Returns:
      The number of attributes in the map.

    • get

      public AttributeInfo get(NodeName name)
      Description copied from interface: AttributeMap
      Get the attribute with a given name, if it exists
      Specified by:
      get in interface AttributeMap
      Parameters:
      name - the name of the required attribute
      Returns:
      the required attribute if it exists

    • get

      public AttributeInfo get(NamespaceUri uri, String local)
      Description copied from interface: AttributeMap
      Get the attribute with a given name, if it exists
      Specified by:
      get in interface AttributeMap
      Parameters:
      uri - the namespace part of the name of the required attribute
      local - the local part of the name of the required attribute
      Returns:
      the required attribute if it exists

    • getByFingerprint

      public AttributeInfo getByFingerprint(int fingerprint, NamePool namePool)
      Specified by:
      getByFingerprint in interface AttributeMap

    • put

      public AttributeMap put(AttributeInfo att)
      Description copied from interface: AttributeMap
      Replace or add an attribute, to create a new AttributeMap
      Specified by:
      put in interface AttributeMap
      Parameters:
      att - the attribute to be added or replaced
      Returns:
      the new AttributeMap

    • remove

      public AttributeMap remove(NodeName name)
      Description copied from interface: AttributeMap
      Remove an existing attribute, to create a new AttributeMap
      Specified by:
      remove in interface AttributeMap
      Parameters:
      name - the name of the attribute to be removed (if it exists)
      Returns:
      a new attribute map in which the specified attribute is omitted. If the attribute map contains no attribute with the given name, the input attribute map (or one equivalent to it) is returned unchanged

    • iterator

      public Iterator<AttributeInfo> iterator()
      Specified by:
      iterator in interface Iterable<AttributeInfo>

    • apply

      public AttributeMap apply(Function<AttributeInfo,AttributeInfo> mapper)
      Description copied from interface: AttributeMap
      Apply a function to every attribute in an attribute map, returning a new attribute map
      Specified by:
      apply in interface AttributeMap
      Parameters:
      mapper - the mapping function to be applied to each attribute in the attribute map
      Returns:
      the attribute containing the attributes after the mapping function has been applied

    • itemAt

      public AttributeInfo itemAt(int index)
      Description copied from interface: AttributeMap
      Get the AttributeInfo with a given index.
      Specified by:
      itemAt in interface AttributeMap
      Parameters:
      index - the index position, zero-based. The order of index positions of attributes in an attribute map reflects document order.
      Returns:
      the AttributeInfo at the given position. In an immutable tree the result will always be equivalent to calling asList().get(index). However, if the tree has been modified, then the index values of the attributes may not be contiguous.