Merge pull request #1605 from xhh/java-equals-hash-code

[Java] Add "equals" and "hashCode" methods to Java clients

modules/swagger-codegen/src/main/resources/Java/libraries/okhttp-gson/model.mustache

@@ -8,6 +8,7 @@ import com.google.gson.annotations.SerializedName;
 
 {{#serializableModel}}
 import java.io.Serializable;{{/serializableModel}}
+import java.util.Objects;
 
 import io.swagger.annotations.*;
 
@@ -44,6 +45,25 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
 
   {{/vars}}
 
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    {{classname}} {{classVarName}} = ({{classname}}) o;{{#hasVars}}
+    return {{#vars}}Objects.equals({{name}}, {{classVarName}}.{{name}}){{#hasMore}} &&
+        {{/hasMore}}{{^hasMore}};{{/hasMore}}{{/vars}}{{/hasVars}}{{^hasVars}}
+    return true;{{/hasVars}}
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash({{#vars}}{{name}}{{#hasMore}}, {{/hasMore}}{{/vars}});
+  }
+
   @Override
   public String toString()  {
     StringBuilder sb = new StringBuilder();

modules/swagger-codegen/src/main/resources/Java/libraries/retrofit/model.mustache

@@ -8,6 +8,7 @@ import com.google.gson.annotations.SerializedName;
 
 {{#serializableModel}}
 import java.io.Serializable;{{/serializableModel}}
+import java.util.Objects;
 
 import io.swagger.annotations.*;
 
@@ -44,6 +45,25 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
 
   {{/vars}}
 
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    {{classname}} {{classVarName}} = ({{classname}}) o;{{#hasVars}}
+    return {{#vars}}Objects.equals({{name}}, {{classVarName}}.{{name}}){{#hasMore}} &&
+        {{/hasMore}}{{^hasMore}};{{/hasMore}}{{/vars}}{{/hasVars}}{{^hasVars}}
+    return true;{{/hasVars}}
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash({{#vars}}{{name}}{{#hasMore}}, {{/hasMore}}{{/vars}});
+  }
+
   @Override
   public String toString()  {
     StringBuilder sb = new StringBuilder();

modules/swagger-codegen/src/main/resources/Java/libraries/retrofit2/model.mustache

@@ -8,6 +8,7 @@ import com.google.gson.annotations.SerializedName;
 
 {{#serializableModel}}
 import java.io.Serializable;{{/serializableModel}}
+import java.util.Objects;
 
 import io.swagger.annotations.*;
 
@@ -44,6 +45,25 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
 
   {{/vars}}
 
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    {{classname}} {{classVarName}} = ({{classname}}) o;{{#hasVars}}
+    return {{#vars}}Objects.equals({{name}}, {{classVarName}}.{{name}}){{#hasMore}} &&
+        {{/hasMore}}{{^hasMore}};{{/hasMore}}{{/vars}}{{/hasVars}}{{^hasVars}}
+    return true;{{/hasVars}}
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash({{#vars}}{{name}}{{#hasMore}}, {{/hasMore}}{{/vars}});
+  }
+
   @Override
   public String toString()  {
     StringBuilder sb = new StringBuilder();

modules/swagger-codegen/src/main/resources/Java/model.mustache

@@ -6,6 +6,7 @@ import {{invokerPackage}}.StringUtil;
 
 {{#serializableModel}}
 import java.io.Serializable;{{/serializableModel}}
+import java.util.Objects;
 
 import io.swagger.annotations.*;
 import com.fasterxml.jackson.annotation.JsonProperty;
@@ -42,6 +43,25 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
 
   {{/vars}}
 
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    {{classname}} {{classVarName}} = ({{classname}}) o;{{#hasVars}}
+    return {{#vars}}Objects.equals({{name}}, {{classVarName}}.{{name}}){{#hasMore}} &&
+        {{/hasMore}}{{^hasMore}};{{/hasMore}}{{/vars}}{{/hasVars}}{{^hasVars}}
+    return true;{{/hasVars}}
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash({{#vars}}{{name}}{{#hasMore}}, {{/hasMore}}{{/vars}});
+  }
+
   @Override
   public String toString()  {
     StringBuilder sb = new StringBuilder();