public boolean isReadOnly() {
		return isReadOnly;
	}
Constructor for a new packed database which will be created from an 
open {@link PackedDBHandle dbHandle}.
@param dbHandle packed DB handle
@param packedDbFile packed DB file which corresponds to {@code dbHandle}
@param itemName DB name
@param newDatabaseId database ID to be forced for new database or null to generate 
new database ID
@param monitor DB save/pack monitor
@throws CancelledException if packed file creation is cancelled
@throws IOException if IO error occurs
Ghidra/Framework/FileSystem/src/main/java/ghidra/framework/store/db/PackedDatabase.java