RussellSpitzer commented on a change in pull request #2496:
URL: https://github.com/apache/iceberg/pull/2496#discussion_r617904807
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File path: api/src/main/java/org/apache/iceberg/types/Types.java
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@@ -415,42 +415,74 @@ public int hashCode() {
public static class NestedField implements Serializable {
public static NestedField optional(int id, String name, Type type) {
- return new NestedField(true, id, name, type, null);
+ return new NestedField(true, id, name, type, null, null);
}
public static NestedField optional(int id, String name, Type type, String
doc) {
- return new NestedField(true, id, name, type, doc);
+ return new NestedField(true, id, name, type, null, doc);
+ }
+
+ public static NestedField optional(int id, String name, Type type, Object
defaultValue, String doc) {
+ return new NestedField(true, id, name, type, defaultValue, doc);
+ }
+
+ public static NestedField optionalWithDefault(int id, String name, Type
type, Object defaultValue) {
+ return new NestedField(true, id, name, type, defaultValue, null);
}
public static NestedField required(int id, String name, Type type) {
- return new NestedField(false, id, name, type, null);
+ return new NestedField(false, id, name, type, null, null);
}
public static NestedField required(int id, String name, Type type, String
doc) {
- return new NestedField(false, id, name, type, doc);
+ return new NestedField(false, id, name, type, null, doc);
+ }
+
+ public static NestedField required(int id, String name, Type type, Object
defaultValue, String doc) {
+ validateDefaultValueForRequiredField(defaultValue);
+ return new NestedField(false, id, name, type, defaultValue, doc);
+ }
+
+ public static NestedField requiredWithDefault(int id, String name, Type
type, Object defaultValue) {
+ validateDefaultValueForRequiredField(defaultValue);
+ return new NestedField(false, id, name, type, defaultValue, null);
}
public static NestedField of(int id, boolean isOptional, String name, Type
type) {
- return new NestedField(isOptional, id, name, type, null);
+ return new NestedField(isOptional, id, name, type, null, null);
}
public static NestedField of(int id, boolean isOptional, String name, Type
type, String doc) {
- return new NestedField(isOptional, id, name, type, doc);
+ return new NestedField(isOptional, id, name, type, null, doc);
+ }
+
+ public static NestedField of(int id, boolean isOptional, String name, Type
type, Object defaultValue, String doc) {
+ return new NestedField(isOptional, id, name, type, defaultValue, doc);
+ }
+
+ private static void validateDefaultValueForRequiredField(Object
defaultValue) {
+ Preconditions.checkNotNull(defaultValue, "defaultValue cannot be null
for a required field");
Review comment:
nit: "Cannot create NestedField with a null default for a required field
%s" fieldname
~Do we want to check valid type here as well?~
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