More javadocs and some light refactoring.

metaschema-framework · Nov 25, 2024 · 6c4fa7d · 6c4fa7d
1 parent d78cc5f
commit 6c4fa7d
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diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/DataTypeService.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/DataTypeService.java
@@ -9,8 +9,8 @@
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IAnyAtomicItem;
 import gov.nist.secauto.metaschema.core.metapath.type.IAtomicOrUnionType;
 import gov.nist.secauto.metaschema.core.metapath.type.IItemType;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.CollectionUtil;
 import gov.nist.secauto.metaschema.core.util.CustomCollectors;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
@@ -28,10 +28,9 @@
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.stream.Stream;
 
-import javax.xml.namespace.QName;
-
 import edu.umd.cs.findbugs.annotations.NonNull;
 import edu.umd.cs.findbugs.annotations.Nullable;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import nl.talsmasoftware.lazy4j.Lazy;
 
 /**
@@ -167,10 +166,13 @@ private DataTypeService() {
    * @return the data type or {@code null} if the data type is unknown to the type
    *         system
    */
+  @SuppressFBWarnings(value = "NP_NULL_ON_SOME_PATH_FROM_RETURN_VALUE", justification = "false positive")
   @Nullable
-  public IAtomicOrUnionType<?> getAtomicTypeByQName(@NonNull QName qname) {
-    IEnhancedQName result = QNameCache.instance().get(qname);
-    return result == null ? null : getAtomicTypeByQNameIndex(result.getIndexPosition());
+  public IAtomicOrUnionType<?> getAtomicTypeByQName(@NonNull IEnhancedQName qname) {
+    return EQNameFactory.instance()
+        .get(qname.getIndexPosition())
+        .map(name -> getAtomicTypeByQNameIndex(name.getIndexPosition()))
+        .orElse(null);
   }
 
   /**

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/Base64Adapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/Base64Adapter.java
@@ -10,8 +10,8 @@
 import gov.nist.secauto.metaschema.core.datatype.AbstractDataTypeAdapter;
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IBase64BinaryItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.nio.ByteBuffer;
@@ -30,9 +30,9 @@ public class Base64Adapter
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
       List.of(
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "base64"),
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "base64"),
           // for backwards compatibility with original type name
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "base64Binary")));
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "base64Binary")));
 
   Base64Adapter() {
     super(ByteBuffer.class, IBase64BinaryItem.class, IBase64BinaryItem::cast);

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/BooleanAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/BooleanAdapter.java
@@ -12,8 +12,8 @@
 import gov.nist.secauto.metaschema.core.datatype.AbstractDataTypeAdapter;
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IBooleanItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.io.IOException;
@@ -31,7 +31,8 @@ public class BooleanAdapter
     extends AbstractDataTypeAdapter<Boolean, IBooleanItem> {
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
-      List.of(QNameCache.instance().of(MetapathConstants.NS_METAPATH, "boolean")));
+      List.of(
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "boolean")));
 
   BooleanAdapter() {
     super(Boolean.class, IBooleanItem.class, IBooleanItem::cast);

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DateAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DateAdapter.java
@@ -11,8 +11,8 @@
 import gov.nist.secauto.metaschema.core.datatype.object.AmbiguousDate;
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IDateItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.time.LocalDate;
@@ -36,7 +36,8 @@ public class DateAdapter
     extends AbstractCustomJavaDataTypeAdapter<AmbiguousDate, IDateItem> {
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
-      List.of(QNameCache.instance().of(MetapathConstants.NS_METAPATH, "date")));
+      List.of(
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "date")));
   @NonNull
   private static final Pattern DATE_TIMEZONE = ObjectUtils.notNull(
       Pattern.compile("^("

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DateTimeAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DateTimeAdapter.java
@@ -11,8 +11,8 @@
 import gov.nist.secauto.metaschema.core.datatype.object.AmbiguousDateTime;
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IDateTimeItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.time.LocalDateTime;
@@ -33,9 +33,9 @@ public class DateTimeAdapter
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
       List.of(
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "date-time"),
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "date-time"),
           // for backwards compatibility with original type name
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "dateTime")));
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "dateTime")));
 
   DateTimeAdapter() {
     super(AmbiguousDateTime.class, IDateTimeItem.class, IDateTimeItem::cast);

diff --git a/...rc/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DateTimeWithTZAdapter.java b/...rc/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DateTimeWithTZAdapter.java
@@ -10,8 +10,8 @@
 import gov.nist.secauto.metaschema.core.datatype.AbstractDataTypeAdapter;
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IDateTimeWithTimeZoneItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.time.DateTimeException;
@@ -31,9 +31,9 @@ public class DateTimeWithTZAdapter
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
       List.of(
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "date-time-with-timezone"),
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "date-time-with-timezone"),
           // for backwards compatibility with original type name
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "dateTime-with-timezone")));
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "dateTime-with-timezone")));
 
   DateTimeWithTZAdapter() {
     super(ZonedDateTime.class, IDateTimeWithTimeZoneItem.class, IDateTimeWithTimeZoneItem::cast);

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DateWithTZAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DateWithTZAdapter.java
@@ -10,8 +10,8 @@
 import gov.nist.secauto.metaschema.core.datatype.AbstractDataTypeAdapter;
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IDateWithTimeZoneItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.time.DateTimeException;
@@ -32,7 +32,8 @@ public class DateWithTZAdapter
     extends AbstractDataTypeAdapter<ZonedDateTime, IDateWithTimeZoneItem> {
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
-      List.of(QNameCache.instance().of(MetapathConstants.NS_METAPATH, "date-with-timezone")));
+      List.of(
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "date-with-timezone")));
   private static final Pattern DATE_TIMEZONE = Pattern.compile("^("
       + "^(?:(?:2000|2400|2800|(?:19|2[0-9](?:0[48]|[2468][048]|[13579][26])))-02-29)"
       + "|(?:(?:(?:19|2[0-9])[0-9]{2})-02-(?:0[1-9]|1[0-9]|2[0-8]))"

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DayTimeAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DayTimeAdapter.java
@@ -10,8 +10,8 @@
 import gov.nist.secauto.metaschema.core.datatype.AbstractDataTypeAdapter;
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IDayTimeDurationItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.time.Duration;
@@ -29,7 +29,8 @@ public class DayTimeAdapter
     extends AbstractDataTypeAdapter<Duration, IDayTimeDurationItem> {
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
-      List.of(QNameCache.instance().of(MetapathConstants.NS_METAPATH, "day-time-duration")));
+      List.of(
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "day-time-duration")));
 
   DayTimeAdapter() {
     super(Duration.class, IDayTimeDurationItem.class, IDayTimeDurationItem::cast);

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DecimalAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/DecimalAdapter.java
@@ -11,8 +11,8 @@
 import gov.nist.secauto.metaschema.core.datatype.AbstractDataTypeAdapter;
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IDecimalItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.io.IOException;
@@ -32,7 +32,8 @@ public class DecimalAdapter
   private static final MathContext MATH_CONTEXT = MathContext.DECIMAL64;
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
-      List.of(QNameCache.instance().of(MetapathConstants.NS_METAPATH, "decimal")));
+      List.of(
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "decimal")));
 
   DecimalAdapter() {
     super(BigDecimal.class, IDecimalItem.class, IDecimalItem::cast);

diff --git a/.../src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/EmailAddressAdapter.java b/.../src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/EmailAddressAdapter.java
@@ -7,8 +7,8 @@
 
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IEmailAddressItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.util.List;
@@ -25,9 +25,9 @@ public class EmailAddressAdapter
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
       List.of(
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "email-address"),
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "email-address"),
           // for backwards compatibility with original type name
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "email")));
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "email")));
 
   EmailAddressAdapter() {
     super(IEmailAddressItem.class, IEmailAddressItem::cast);

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/HostnameAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/HostnameAdapter.java
@@ -7,8 +7,8 @@
 
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IHostnameItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.util.List;
@@ -24,7 +24,8 @@ public class HostnameAdapter
     extends AbstractStringAdapter<IHostnameItem> {
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
-      List.of(QNameCache.instance().of(MetapathConstants.NS_METAPATH, "hostname")));
+      List.of(
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "hostname")));
 
   HostnameAdapter() {
     super(IHostnameItem.class, IHostnameItem::cast);

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/IPv4AddressAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/IPv4AddressAdapter.java
@@ -10,8 +10,8 @@
 import gov.nist.secauto.metaschema.core.datatype.AbstractDataTypeAdapter;
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IIPv4AddressItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.util.List;
@@ -32,7 +32,8 @@ public class IPv4AddressAdapter
     extends AbstractDataTypeAdapter<IPv4Address, IIPv4AddressItem> {
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
-      List.of(QNameCache.instance().of(MetapathConstants.NS_METAPATH, "ip-v4-address")));
+      List.of(
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "ip-v4-address")));
   private static final IPAddressStringParameters IP_V_4;
 
   static {

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/IPv6AddressAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/IPv6AddressAdapter.java
@@ -10,8 +10,8 @@
 import gov.nist.secauto.metaschema.core.datatype.AbstractDataTypeAdapter;
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IIPv6AddressItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.util.List;
@@ -32,7 +32,8 @@ public class IPv6AddressAdapter
     extends AbstractDataTypeAdapter<IPv6Address, IIPv6AddressItem> {
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
-      List.of(QNameCache.instance().of(MetapathConstants.NS_METAPATH, "ip-v6-address")));
+      List.of(
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "ip-v6-address")));
   private static final IPAddressStringParameters IP_V_6;
 
   static {

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/IntegerAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/IntegerAdapter.java
@@ -7,8 +7,8 @@
 
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IIntegerItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.math.BigInteger;
@@ -25,7 +25,8 @@ public class IntegerAdapter
     extends AbstractIntegerAdapter<IIntegerItem> {
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
-      List.of(QNameCache.instance().of(MetapathConstants.NS_METAPATH, "integer")));
+      List.of(
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "integer")));
 
   IntegerAdapter() {
     super(IIntegerItem.class, IIntegerItem::cast);

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/NcNameAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/NcNameAdapter.java
@@ -7,8 +7,8 @@
 
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.INcNameItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.util.List;
@@ -27,9 +27,9 @@ public class NcNameAdapter
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
       List.of(
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "ncname"),
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "ncname"),
           // for backwards compatibility with original type name
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "NCName")));
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "NCName")));
   private static final Pattern NCNAME = Pattern.compile(String.format("^(\\p{L}|_)(\\p{L}|\\p{N}|[.\\-_])*$"));
 
   /**

diff --git a/...ain/java/gov/nist/secauto/metaschema/core/datatype/adapter/NonNegativeIntegerAdapter.java b/...ain/java/gov/nist/secauto/metaschema/core/datatype/adapter/NonNegativeIntegerAdapter.java
@@ -7,8 +7,8 @@
 
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.INonNegativeIntegerItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.math.BigInteger;
@@ -26,9 +26,9 @@ public class NonNegativeIntegerAdapter
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
       List.of(
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "non-negative-integer"),
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "non-negative-integer"),
           // for backwards compatibility with original type name
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "nonNegativeInteger")));
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "nonNegativeInteger")));
 
   NonNegativeIntegerAdapter() {
     super(INonNegativeIntegerItem.class, INonNegativeIntegerItem::cast);

diff --git a/...c/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/PositiveIntegerAdapter.java b/...c/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/PositiveIntegerAdapter.java
@@ -7,8 +7,8 @@
 
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IPositiveIntegerItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.math.BigInteger;
@@ -26,9 +26,9 @@ public class PositiveIntegerAdapter
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
       List.of(
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "positive-integer"),
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "positive-integer"),
           // for backwards compatibility with original type name
-          QNameCache.instance().of(MetapathConstants.NS_METAPATH, "positiveInteger")));
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "positiveInteger")));
 
   PositiveIntegerAdapter() {
     super(IPositiveIntegerItem.class, IPositiveIntegerItem::cast);

diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/StringAdapter.java b/core/src/main/java/gov/nist/secauto/metaschema/core/datatype/adapter/StringAdapter.java
@@ -7,8 +7,8 @@
 
 import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
 import gov.nist.secauto.metaschema.core.metapath.item.atomic.IStringItem;
+import gov.nist.secauto.metaschema.core.qname.EQNameFactory;
 import gov.nist.secauto.metaschema.core.qname.IEnhancedQName;
-import gov.nist.secauto.metaschema.core.qname.QNameCache;
 import gov.nist.secauto.metaschema.core.util.ObjectUtils;
 
 import java.util.List;
@@ -24,7 +24,8 @@ public class StringAdapter
     extends AbstractStringAdapter<IStringItem> {
   @NonNull
   private static final List<IEnhancedQName> NAMES = ObjectUtils.notNull(
-      List.of(QNameCache.instance().of(MetapathConstants.NS_METAPATH, "string")));
+      List.of(
+          EQNameFactory.instance().newQName(MetapathConstants.NS_METAPATH, "string")));
 
   StringAdapter() {
     super(IStringItem.class, IStringItem::cast);