Module dev.metaschema.core

Package dev.metaschema.core.metapath.item.atomic

package dev.metaschema.core.metapath.item.atomic

Atomic item types representing indivisible values in the Metapath type system.

This package provides interfaces and implementations for atomic items, which are fundamental data values that cannot be decomposed into smaller units. Atomic items correspond to simple types in XPath 3.1 and include primitive types, numeric types, temporal types, and Metaschema-specific types.

Core atomic type interfaces include:

• IAnyAtomicItem - Base interface for all atomic items
• IStringItem - Text values
• INumericItem - Numeric value base interface
• IIntegerItem - Integer values
• IDecimalItem - Decimal values
• IBooleanItem - Boolean values
• IDateTimeItem - Date and time values
• IUriReferenceItem - URI references

Metaschema-specific atomic types include:

• IMarkupItem - Formatted text with inline markup
• IEmailAddressItem - Email addresses
• IHostnameItem - Hostnames
• IIPAddressItem - IP addresses (v4 and v6)
• IUuidItem - UUIDs

Atomic items support type conversions, comparisons, and operations as defined by the XPath 3.1 Functions and Operators specification. Each atomic type is backed by a corresponding IDataTypeAdapter that handles value parsing, validation, and serialization.

See Also:

• XPath 3.1 Data Model: Atomic Values
• XPath 3.1 Functions and Operators

Related Packages

Package	Description
dev.metaschema.core.metapath.item	Core interfaces and classes for the Metapath item type system.
dev.metaschema.core.metapath.item.function	Provides support for Metapath function items, including arrays and maps.
dev.metaschema.core.metapath.item.node	Node item types representing structured data in the Metapath type system.

Class	Description
AbstractAnyAtomicItem<TYPE>	Provides a common implementation for all atomic types that have an underlying value.
AbstractAtomicItemBase<TYPE>	Provides base functionality for atomic item implementations.
AbstractUntypedAtomicItem<TYPE>	A base class for untyped atomic items.
IAnyAtomicItem	The interface shared by all atomic items, representing indivisible data values that serve as the fundamental building blocks for complex data structures in the Metaschema framework.
IAnyUriItem	An atomic Metapath item containing a URI data value.
IAtomicValuedItem	This marker interface identifies a valued IItem type that has an associated IAnyAtomicItem value.
IBase64BinaryItem	An atomic Metapath item containing a Base64 encoded data value.
IBooleanItem	An atomic Metapath item with a boolean value.
ICalendarTemporalItem	A temporal valued item related to a ZonedDateTime.
IDateItem	An atomic Metapath item representing a date value in the Metapath system with or without an explicit time zone.
IDateTimeItem	An atomic Metapath item representing a date/time value in the Metapath system.
IDateTimeWithTimeZoneItem	An atomic Metapath item representing a date/time value in the Metapath system with an explicit time zone.
IDateWithTimeZoneItem	An atomic Metapath item containing a date data value that has an explicit timezone.
IDayTimeDurationItem	An atomic Metapath item containing a duration data value in days, hours, and seconds.
IDecimalItem	An atomic Metapath item containing a decimal data value.
IDurationItem	An atomic Metapath item representing a duration data value.
IEmailAddressItem	An atomic Metapath item containing an email address data value.
IHexBinaryItem	An atomic Metapath item containing a Base64 encoded data value.
IHostnameItem	An atomic Metapath item containing a hostname data value.
IIntegerItem	An atomic Metapath item containing an integer data value.
IIPAddressItem	An atomic Metapath item representing an IP address data value.
IIPv4AddressItem	An atomic Metapath item containing an IPv4 address data value.
IIPv6AddressItem	An atomic Metapath item containing an IPv6 address data value.
IMarkupItem	An atomic Metapath item representing a Markup data value.
IMarkupLineItem	An atomic Metapath item representing a single line of Markup.
IMarkupMultilineItem	An atomic Metapath item representing multiple lines of Markup.
INcNameItem	Deprecated, for removal: This API element is subject to removal in a future version.
INonNegativeIntegerItem	An atomic Metapath item containing a non-negative integer data value.
INumericItem	Represents an atomic Metapath item containing a numeric data value, which can be either an integer or decimal.
IPositiveIntegerItem	An atomic Metapath item containing a positive integer data value.
IQNameItem	An atomic Metapath item with a namespace qualified name value.
IStringItem	An atomic Metapath item containing a text data value.
ITemporalItem	An atomic Metapath item containing a temporal data value.
ITimeItem	An atomic Metapath item representing a time value in the Metapath system.
ITimeWithTimeZoneItem	An atomic Metapath item representing a time value in the Metapath system with an explicit time zone.
ITokenItem	An atomic Metapath item containing a text token data value.
IUntypedAtomicItem	An atomic Metapath item containing an untyped atomic data value.
IUriReferenceItem	An atomic Metapath item containing a URI reference data value that complies with RFC2396.
IUuidItem	An atomic Metapath item containing a UUID data value.
IYearMonthDurationItem	An atomic Metapath item containing a duration data value in years, months, and days.