Package de.isas.mztab2.cvmapping

Class JxPathElement

java.lang.Object

de.isas.mztab2.cvmapping.JxPathElement

public final class JxPathElement
extends Object

Utility methods for simpler Java 8 compatible handling of JXPath selections and pointers.

Author:

nilshoffmann

Constructor Summary

Constructors

Constructor	Description
JxPathElement()

Method Summary

Modifier and Type	Method	Description
static <T> List<org.apache.commons.lang3.tuple.Pair<org.apache.commons.jxpath.Pointer,T>>	toList(org.apache.commons.jxpath.JXPathContext context, String xpath, Class<? extends T> type)	Returns the elements selected by the xpath expression from the provided JXPathContext as a list of the given object type.
static <T> List<org.apache.commons.lang3.tuple.Pair<org.apache.commons.jxpath.Pointer,T>>	toList(org.apache.commons.jxpath.Pointer pointer, Class<? extends T> type)	Wrap the provided pointer as a list of the given object type.
static <T> Stream<T>	toStream(Iterator<? extends T> iter)	Wraps the provided typed iterator into a stream, based on Spliterators.
static <T> Stream<T>	toStream(Iterator iter, Class<? extends T> type)	Creates a typed stream from an untyped (pre Java 6) iterator.
static <T> Stream<org.apache.commons.lang3.tuple.Pair<org.apache.commons.jxpath.Pointer,T>>	toStream(org.apache.commons.jxpath.Pointer pointer, Class<? extends T> type)	Wrap the provided pointer as a stream of the given object type.
static <T> Iterator<T>	typedIter(Iterator iter, Class<? extends T> type)	Creates a typed iterator from an untyped (pre Java 6) iterator.

Methods inherited from class java.lang.Object

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

Constructor Detail

JxPathElement

public JxPathElement()

Method Detail

toStream

public static <T> Stream<org.apache.commons.lang3.tuple.Pair<org.apache.commons.jxpath.Pointer,T>> toStream(org.apache.commons.jxpath.Pointer pointer,
                                                                                                                  Class<? extends T> type)

Wrap the provided pointer as a stream of the given object type.

Type Parameters:

T - the generic object type

Parameters:

pointer - the pointer in the object tree

type - the object's type

Returns:

a typed stream of pairs of pointer and typed object

toList

public static <T> List<org.apache.commons.lang3.tuple.Pair<org.apache.commons.jxpath.Pointer,T>> toList(org.apache.commons.jxpath.Pointer pointer,
                                                                                                              Class<? extends T> type)

Wrap the provided pointer as a list of the given object type.

Type Parameters:

T - the generic object type

Parameters:

pointer - the pointer in the object tree

type - the object's type

Returns:

a typed list of pairs of pointer and typed object

toList

public static <T> List<org.apache.commons.lang3.tuple.Pair<org.apache.commons.jxpath.Pointer,T>> toList(org.apache.commons.jxpath.JXPathContext context,
                                                                                                              String xpath,
                                                                                                              Class<? extends T> type)

Returns the elements selected by the xpath expression from the provided JXPathContext as a list of the given object type.

Type Parameters:

T - the generic object type

Parameters:

context - the jxpath object tree context

xpath - the xpath expression used for subtree / element selection

type - the object's type

Returns:

a typed list of pairs of pointer and typed object

typedIter

public static <T> Iterator<T> typedIter(Iterator iter,
                                        Class<? extends T> type)

Creates a typed iterator from an untyped (pre Java 6) iterator.

Type Parameters:

T - the generic object type

Parameters:

iter - the original iterator

type - the object's type

Returns:

a typed iterator of the requested type, backed by the provided iterator.

toStream

public static <T> Stream<T> toStream(Iterator iter,
                                     Class<? extends T> type)

Creates a typed stream from an untyped (pre Java 6) iterator.

Type Parameters:

T - the generic object type

Parameters:

iter - the original iterator

type - the object's type

Returns:

a typed iterator of the requested type, backed by the provided iterator.

See Also:

<T>typedIter(java.util.Iterator,java.lang.Class<? extends T>)

toStream

public static <T> Stream<T> toStream(Iterator<? extends T> iter)

Wraps the provided typed iterator into a stream, based on Spliterators.

Type Parameters:

T - the generic object type

Parameters:

iter - the original iterator

Returns:

a typed (unbounded and ordered) stream, backed by the provided iterator.