public interface XQSequenceType
XQSequenceType
interface represents a sequence type as XQuery 1.0: An XML Query language. The XQSequenceType
is the base interface for the XQItemType
interface and contains an occurence indicator.Modifier and Type | Field and Description |
---|---|
static int |
OCC_EMPTY |
static int |
OCC_EXACTLY_ONE |
static int |
OCC_ONE_OR_MORE |
static int |
OCC_ZERO_OR_MORE |
static int |
OCC_ZERO_OR_ONE |
Modifier and Type | Method and Description |
---|---|
boolean |
equals(java.lang.Object o)
Compares the specified object with this sequence type for equality.
|
int |
getItemOccurrence()
Returns the occurrence indicator for the sequence type.
|
XQItemType |
getItemType()
Returns the type of the item in the sequence type.
|
int |
hashCode()
Returns a hash code consistent with the definition of the equals method.
|
java.lang.String |
toString()
Returns a human-readable implementation-defined string representation of the sequence type.
|
static final int OCC_ZERO_OR_ONE
static final int OCC_EXACTLY_ONE
static final int OCC_ZERO_OR_MORE
static final int OCC_ONE_OR_MORE
static final int OCC_EMPTY
XQItemType getItemType()
XQItemType
representing the item type in the sequence. null
is returned in case of an empty sequence.int getItemOccurrence()
Description | Value |
---|---|
Zero or one | OCC_ZERO_OR_ONE |
Exactly one | OCC_EXACTLY_ONE |
Zero or more | OCC_ZERO_OR_MORE |
One or more | OCC_ONE_OR_MORE |
Empty | OCC_EMPTY |
int
indicating the occurrence indicatorjava.lang.String toString()
toString
in class java.lang.Object
String
representation of the sequence typeboolean equals(java.lang.Object o)
true
only if the argument is a sequence type object which represents the same XQuery sequence type.equals
and hashCode
across different implementations the following algorithm must be used. Return true
if and only if both objects are XQsequenceType
and:
getItemOccurrence()
is equalOCC_EMPTY
, getItemType()
is equalequals
in class java.lang.Object
o
- an XQItemType
object representing an XQuery sequence typetrue
if the input item type object represents the same XQuery sequence type, false
otherwiseint hashCode()
equals
and hashCode
across different implementations the following algorithm must be used:
int hashCode; if (getItemOccurrence() == XQSequenceType.OCC_EMPTY) { hashCode = 1; } else { hashCode = getItemOccurrence()*31 + getItemType().hashCode(); }
hashCode
in class java.lang.Object