Fix large integer queries

Summary

This MR does two things:

• Fix https://gitlab.com/caosdb/caosdb-server/-/issues/145
• Expose some internals of POV.java for unittests.

Please merge together with caosdb-pyinttest!35 (merged)

Focus

• Was the cast to integer necessary before?
• Was the required dot in Doubles necessary before?

Test Environment

Unit tests, integration tests.

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• All automated tests pass
• Reference related issues #239 (closed)
• Up-to-date CHANGELOG.md (or not necessary)
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md (or not necessary)
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there specifications? Are they satisfied?

For further good practices have a look at our review guidelines.

src/main/java/org/caosdb/server/query/POV.java

@@ -507,35 +507,35 @@ public class POV implements EntityFilterInterface {
     return ret;
   }
 
-  /** Return the value type as string, for debugging puposes. */
-  public String getValueType() {
-    if (this.vInt != null) { // vInt
-      System.out.println(this.vInt);
-      return "Integer";
-    }
-    if (this.vDouble != null) { // vInt
-      return "Double";
-    }
-    if (this.vDatetime != null) { // vInt
-      return "Datetime";
-    }
-    return "String";
-  }
-
-  /** Return the Int value, which may be null. */
-  public Integer getVInt() {
-    return this.vInt;
-  }
-
-  /** Return the Double value, which may be null. */
-  public Double getVDouble() {
-    return this.vDouble;
-  }
-
-  /** Return the Datetime value, which may be null. */
-  public DateTimeInterface getVDatetime() {
-    return this.vDatetime;
-  }
+  /** Return the value type as string, for debugging purposes. */
+  // public String getValueType() {
+  //   if (this.vInt != null) { // vInt
+  //     System.out.println(this.vInt);
+  //     return "Integer";
+  //   }
+  //   if (this.vDouble != null) { // vInt
+  //     return "Double";
+  //   }
+  //   if (this.vDatetime != null) { // vInt
+  //     return "Datetime";
+  //   }
+  //   return "String";
+  // }
+
+  // /** Return the Int value, which may be null. */
+  // public Integer getVInt() {
+  //   return this.vInt;
+  // }
+
+  // /** Return the Double value, which may be null. */
+  // public Double getVDouble() {
+  //   return this.vDouble;
+  // }
+
+  // /** Return the Datetime value, which may be null. */
+  // public DateTimeInterface getVDatetime() {
+  //   return this.vDatetime;
+  // }
 
   public String getAggregate() {
     return this.aggregate;