jpountz commented on code in PR #13205:
URL: https://github.com/apache/lucene/pull/13205#discussion_r1537555897
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lucene/core/src/java/org/apache/lucene/store/IOContext.java:
##########
@@ -62,91 +55,36 @@ public enum Context {
public static final IOContext LOAD = new IOContext(false, true);
- public IOContext() {
- this(false, false);
- }
-
- public IOContext(FlushInfo flushInfo) {
- assert flushInfo != null;
- this.context = Context.FLUSH;
- this.mergeInfo = null;
- this.readOnce = false;
- this.load = false;
- this.flushInfo = flushInfo;
- }
-
- public IOContext(Context context) {
- this(context, null);
+ @SuppressWarnings("incomplete-switch")
+ public IOContext {
+ switch (context) {
+ case MERGE -> Objects.requireNonNull(
+ mergeInfo, "mergeInfo must not be null if context is MERGE");
+ case FLUSH -> Objects.requireNonNull(
+ flushInfo, "flushInfo must not be null if context is FLUSH");
+ }
}
private IOContext(boolean readOnce, boolean load) {
- this.context = Context.READ;
- this.mergeInfo = null;
- this.readOnce = readOnce;
- this.load = load;
- this.flushInfo = null;
- }
-
- public IOContext(MergeInfo mergeInfo) {
- this(Context.MERGE, mergeInfo);
+ this(Context.READ, null, null, readOnce, load);
}
- private IOContext(Context context, MergeInfo mergeInfo) {
- assert context != Context.MERGE || mergeInfo != null
- : "MergeInfo must not be null if context is MERGE";
- assert context != Context.FLUSH : "Use IOContext(FlushInfo) to create a
FLUSH IOContext";
- this.context = context;
- this.readOnce = false;
- this.load = false;
- this.mergeInfo = mergeInfo;
- this.flushInfo = null;
+ private IOContext(Context context) {
+ this(context, null, null, false, false);
}
- /**
- * This constructor is used to initialize a {@link IOContext} instance with
a new value for the
- * readOnce variable.
- *
- * @param ctxt {@link IOContext} object whose information is used to create
the new instance
- * except the readOnce variable.
- * @param readOnce The new {@link IOContext} object will use this value for
readOnce.
- */
- public IOContext(IOContext ctxt, boolean readOnce) {
- this.context = ctxt.context;
- this.mergeInfo = ctxt.mergeInfo;
- this.flushInfo = ctxt.flushInfo;
- this.readOnce = readOnce;
- this.load = false;
- }
-
- @Override
- public int hashCode() {
- return Objects.hash(context, flushInfo, mergeInfo, readOnce, load);
+ /** Creates an IOContext for flushing. */
+ public IOContext(FlushInfo flushInfo) {
+ this(Context.FLUSH, null, flushInfo, false, false);
}
- @Override
- public boolean equals(Object obj) {
- if (this == obj) return true;
- if (obj == null) return false;
- if (getClass() != obj.getClass()) return false;
- IOContext other = (IOContext) obj;
- if (context != other.context) return false;
- if (!Objects.equals(flushInfo, other.flushInfo)) return false;
- if (!Objects.equals(mergeInfo, other.mergeInfo)) return false;
- if (readOnce != other.readOnce) return false;
- if (load != other.load) return false;
- return true;
+ /** Creates an IOContext for merging. */
+ public IOContext(MergeInfo mergeInfo) {
+ this(Context.MERGE, mergeInfo, null, false, false);
}
- @Override
- public String toString() {
- return "IOContext [context="
- + context
- + ", mergeInfo="
- + mergeInfo
- + ", flushInfo="
- + flushInfo
- + ", readOnce="
- + readOnce
- + "]";
+ /** Return a copy of this IOContext with {@link #readOnce} set to {@code
true}. */
+ public IOContext toReadOnce() {
+ return new IOContext(context, mergeInfo, flushInfo, true, load);
Review Comment:
I opened https://github.com/apache/lucene/issues/13211.
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