hashcode

问题 We have an application that Generates a hash code on a string Saves that hash code into a DB along with associated data Later, it queries the DB using the string hash code for retrieving the data This is obviously a bug because the value returned from string.GetHashCode() varies from .NET versions and architectures (32/64 bit). To complicate matters, we're too close to a release to refactor our application to stop serializing hash codes and just query on the strings instead. What we'd like to

问题 We have an application that Generates a hash code on a string Saves that hash code into a DB along with associated data Later, it queries the DB using the string hash code for retrieving the data This is obviously a bug because the value returned from string.GetHashCode() varies from .NET versions and architectures (32/64 bit). To complicate matters, we're too close to a release to refactor our application to stop serializing hash codes and just query on the strings instead. What we'd like to

问题 Since SipHasher is too slow for my use case, I'm trying to implement a custom hash function. I found an example which I used as base to get everything compiling. My current code looks like this: use std::collections::hash_state::{DefaultState}; use std::collections::{HashMap, HashSet}; use std::default::Default; use std::hash::{Hash, Hasher, SipHasher}; use std::marker; pub struct FnvHasher(u64); impl Default for FnvHasher { fn default() -> FnvHasher { FnvHasher(0xcbf29ce484222325) } } impl

问题 Since SipHasher is too slow for my use case, I'm trying to implement a custom hash function. I found an example which I used as base to get everything compiling. My current code looks like this: use std::collections::hash_state::{DefaultState}; use std::collections::{HashMap, HashSet}; use std::default::Default; use std::hash::{Hash, Hasher, SipHasher}; use std::marker; pub struct FnvHasher(u64); impl Default for FnvHasher { fn default() -> FnvHasher { FnvHasher(0xcbf29ce484222325) } } impl

问题 I'm getting data from database model Income. This is how it looks @Table(name = "Income") public class Income extends Model { @Column(name = "AmountDate") public String amountDate; @Column(name = "Amount") public Double amount; @Column(name = "Day") public int day; @Column(name = "Month") public int month; @Column(name = "Year") public int year; } In my fragment I'm getting all Income data from database. In my BaseAdapter I would like to create ArrayList with month and year in it. It would

来源： https://stackoverflow.com/questions/29955291/why-objects-hash-returns-different-values-for-the-same-input

来源： https://stackoverflow.com/questions/64383310/compare-two-documents-in-java

来源： https://stackoverflow.com/questions/64383310/compare-two-documents-in-java

来源： https://stackoverflow.com/questions/56908063/how-to-use-equalsandhashcode-with-include-lombok

来源： https://stackoverflow.com/questions/56908063/how-to-use-equalsandhashcode-with-include-lombok