com.ctc.wstx.util

Class DataUtil

java.lang.Object

com.ctc.wstx.util.DataUtil

public final class DataUtil
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	DataUtil.EmptyIterator Due to [woodstox#10], we will need to use a work-around which (for now) includes a local copy of this iterator class.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static char[]	EMPTY_CHAR_ARRAY
(package private) static java.lang.Long	MAX_LONG
(package private) static java.lang.String	NO_TYPE

Constructor Summary

Constructors

Modifier	Constructor and Description
private	DataUtil()

Method Summary

Modifier and Type	Method and Description
static <T> boolean	anyValuesInCommon(java.util.Collection<T> c1, java.util.Collection<T> c2) Method that can be used to efficiently check if 2 collections share at least one common element.
static <T> java.util.Iterator<T>	emptyIterator()
static char[]	getEmptyCharArray()
static int[]	growArrayBy(int[] arr, int more)
static java.lang.String[]	growArrayBy(java.lang.String[] arr, int more)
static java.lang.Object	growArrayBy50Pct(java.lang.Object arr)
static java.lang.Object	growArrayToAtLeast(java.lang.Object arr, int minLen) Method similar to growArrayBy50Pct(java.lang.Object), but it also ensures that the new size is at least as big as the specified minimum size.
static java.lang.Integer	Integer(int i)
static java.lang.Long	Long(long l) Deprecated.
static <T> java.util.Iterator<T>	singletonIterator(T item)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_CHAR_ARRAY

static final char[] EMPTY_CHAR_ARRAY

MAX_LONG

static final java.lang.Long MAX_LONG

NO_TYPE

static final java.lang.String NO_TYPE

See Also:

Constant Field Values

Constructor Detail

DataUtil

private DataUtil()

Method Detail

getEmptyCharArray

public static char[] getEmptyCharArray()

Integer

public static java.lang.Integer Integer(int i)

Long

@Deprecated
public static java.lang.Long Long(long l)

Deprecated.

singletonIterator

public static <T> java.util.Iterator<T> singletonIterator(T item)

emptyIterator

public static <T> java.util.Iterator<T> emptyIterator()

anyValuesInCommon

public static <T> boolean anyValuesInCommon(java.util.Collection<T> c1,
                                            java.util.Collection<T> c2)

Method that can be used to efficiently check if 2 collections share at least one common element.

Returns:

True if there is at least one element that's common to both Collections, ie. that is contained in both of them.

growArrayBy50Pct

public static java.lang.Object growArrayBy50Pct(java.lang.Object arr)

growArrayToAtLeast

public static java.lang.Object growArrayToAtLeast(java.lang.Object arr,
                                                  int minLen)

Method similar to growArrayBy50Pct(java.lang.Object), but it also ensures that the new size is at least as big as the specified minimum size.

growArrayBy

public static java.lang.String[] growArrayBy(java.lang.String[] arr,
                                             int more)

growArrayBy

public static int[] growArrayBy(int[] arr,
                                int more)