Package net.sf.saxon.value

Class StringValue.UnicodeCharacterIterator

java.lang.Object
net.sf.saxon.value.StringValue.UnicodeCharacterIterator
All Implemented Interfaces:
Closeable, AutoCloseable, SequenceIterator<Int64Value>, UnfailingIterator<Int64Value>
Enclosing class:
StringValue
public static final class StringValue.UnicodeCharacterIterator extends Object implements UnfailingIterator<Int64Value>

  • Field Details

  • Constructor Details

    • UnicodeCharacterIterator

      public UnicodeCharacterIterator(UnicodeString value)
      Create an iterator over a string

  • Method Details

    • next

      public Int64Value next()
      Description copied from interface: UnfailingIterator
      Get the next item in the sequence.
      Specified by:
      next in interface SequenceIterator<Int64Value>
      Specified by:
      next in interface UnfailingIterator<Int64Value>
      Returns:
      the next Item. If there are no more items, return null.

    • close

      public void close()
      Description copied from interface: SequenceIterator
      Close the iterator. This indicates to the supplier of the data that the client does not require any more items to be delivered by the iterator. This may enable the supplier to release resources. After calling close(), no further calls on the iterator should be made; if further calls are made, the effect of such calls is undefined.

      For example, the iterator returned by the unparsed-text-lines() function has a close() method that causes the underlying input stream to be closed, whether or not the file has been read to completion.

      Closing an iterator is important when the data is being "pushed" in another thread. Closing the iterator terminates that thread and means that it needs to do no additional work. Indeed, failing to close the iterator may cause the push thread to hang waiting for the buffer to be emptied.

      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface Closeable
      Specified by:
      close in interface SequenceIterator<Int64Value>

    • getProperties

      public int getProperties()
      Get properties of this iterator, as a bit-significant integer.
      Specified by:
      getProperties in interface SequenceIterator<Int64Value>
      Returns:
      the properties of this iterator. This will be some combination of properties such as SequenceIterator.GROUNDED and SequenceIterator.LAST_POSITION_FINDER. It is always acceptable to return the value zero, indicating that there are no known special properties.