org.daisy.common.transform

Class InputValue<V>

java.lang.Object

org.daisy.common.transform.InputValue<V>

Direct Known Subclasses:

StringWithNamespaceContext, XMLInputValue

public class InputValue<V>
extends Object

A supplier of a XDM value (item or sequence of items). The items may be nodes (see XMLInputValue), atomic values, or maps, and by extension arbitrary objects ("external" items).

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	InputValue()
protected	InputValue(InputValue<V> value)
	InputValue(V value)

Method Summary

Modifier and Type	Method and Description
V	asObject()
<T> T	asObject(Class<T> type)
protected static <T> Iterable<T>	cache(Iterator<T> iterator, int limit) Cache a Iterator.
protected static <T> Iterator<T>	iteratorOf(Supplier<T> supplier)
Mult<? extends InputValue<V>>	mult(int limit) Make multiples of this input.
String	toString()
protected boolean	valueSupplied()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

InputValue

public InputValue(V value)

Parameters:

object - A Java object that represents a single atomic value, sequence of atomic values, map item, or other object (but not a node sequence).

The object may be a plain old Java object, for example:

• String: a single xs:string atomic value
• Integer: a single xs:integer atomic value
• QName: a single xs:QName atomic value
• Iterator<Object>: a sequence of atomic values
• Map<Object,InputValue>: a XDM map (where the keys are single atomic values and the values are arbitrary values)

It may also be an object representing a non-XDM item.

InputValue

protected InputValue()

InputValue

protected InputValue(InputValue<V> value)

Method Detail

asObject

public V asObject()
           throws UnsupportedOperationException,
                  NoSuchElementException

Throws:

UnsupportedOperationException

NoSuchElementException

asObject

public final <T> T asObject(Class<T> type)
                     throws UnsupportedOperationException,
                            NoSuchElementException

Throws:

UnsupportedOperationException

NoSuchElementException

toString

public String toString()

Overrides:

toString in class Object

mult

public Mult<? extends InputValue<V>> mult(int limit)

Make multiples of this input.

Parameters:

limit - The maximum number of multiples that will be made. -1 means unlimited.

valueSupplied

protected boolean valueSupplied()

cache

protected static <T> Iterable<T> cache(Iterator<T> iterator,
                                       int limit)

Cache a Iterator. Items are evicted after they have been supplied limit times. Exceptions thrown by the input iterator are replayed.

iteratorOf

protected static <T> Iterator<T> iteratorOf(Supplier<T> supplier)