Basic examples on cdi and beans validation

test2_constraints_validation/class_with_builtin_constraints.java

@@ -0,0 +1,39 @@
+package test2_constraints_validation;
+
+import javax.validation.constraints.*;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+public class class_with_builtin_constraints {
+
+
+
+        @NotNull @Size(min = 4, max = 50)
+        private String title;
+        @NotNull
+        private Float price;
+
+
+        @Pattern(regexp = "[A-Z][a-z]{1,}")
+        private String musicCompany;
+
+        @Max(value = 5)
+        private Integer numberOfCDs;
+
+        @NotNull @DecimalMin("5.8")
+        public Float calculatePrice(@DecimalMin("1.4") Float rate) {
+            return price * rate;
+        }
+        @DecimalMin("9.99")
+        public Float calculateVAT() {
+            return price * 0.196f;
+        }
+
+        @AssertTrue
+        public Boolean CheckStringLength (@NotNull String a) {
+            return a.length() > 0;
+        }
+
+
+}

test2_constraints_validation/general_class.java

@@ -0,0 +1,42 @@
+package test2_constraints_validation;
+
+import javax.annotation.PostConstruct;
+import javax.validation.constraints.*;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+
+@general_class_constraint
+public class general_class {
+
+
+        private String title;
+
+        private Double price;
+
+                @PostConstruct private void ps (){
+                        title = "AAA";
+                        price = 121.0;
+                }
+
+        public Boolean CheckStringLength ( String a) {
+                return a.length() > 0;
+        }
+
+        public String getTitle() {
+                return title;
+        }
+
+        public void setTitle(String title) {
+                this.title = title;
+        }
+
+        public Double getPrice() {
+                return price;
+        }
+
+        public void setPrice(Double price) {
+                this.price = price;
+        }
+}

test2_constraints_validation/general_class_constraint.java

@@ -0,0 +1,24 @@
+package test2_constraints_validation;
+
+import javax.validation.Constraint;
+import javax.validation.Payload;
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import static java.lang.annotation.ElementType.*;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+
+@Constraint(validatedBy = {general_class_validator.class})
+@Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER,TYPE})
+@Retention(RUNTIME)
+public @interface general_class_constraint {
+
+    String message() default "This is a sample of constraint for a class";
+    Class<?>[] groups() default {};
+    Class<? extends Payload>[] payload() default {};
+
+}

test2_constraints_validation/general_class_validator.java

@@ -0,0 +1,23 @@
+package test2_constraints_validation;
+
+import javax.validation.ConstraintValidator;
+import javax.validation.ConstraintValidatorContext;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+public class general_class_validator implements ConstraintValidator<general_class_constraint,general_class> {
+
+
+
+    @Override
+    public void initialize(general_class_constraint general_class_constraint) {
+    }
+
+    @Override
+    public boolean isValid(general_class general_class, ConstraintValidatorContext constraintValidatorContext) {
+        if (general_class.getPrice() > 0 && general_class.getTitle().length() > 0)
+            return true;
+        return false;
+    }
+}

test2_constraints_validation/general_class_wrapper.java

@@ -0,0 +1,19 @@
+package test2_constraints_validation;
+
+import javax.annotation.PostConstruct;
+import javax.inject.Inject;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+public class general_class_wrapper {
+
+    @Inject @general_class_constraint
+    private general_class g;
+
+    @PostConstruct
+    private void ps (){
+        g.setPrice(10.0);
+        g.setTitle("Artur");
+    }
+}

test2_constraints_validation/substring_class.java

@@ -0,0 +1,15 @@
+package test2_constraints_validation;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+public class substring_class {
+
+
+    @substring_constraint (xg_attribute_1 = "xgiovio" )
+    String a = "arxgiovio";
+
+    @substring_constraint (xg_attribute_1 = "mario" )
+    String b = "xgarturomario";
+
+}

test2_constraints_validation/substring_constraint.java

@@ -0,0 +1,25 @@
+package test2_constraints_validation;
+
+import javax.validation.Constraint;
+import javax.validation.Payload;
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import static java.lang.annotation.ElementType.*;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+
+@Constraint(validatedBy = {substring_validator.class})
+@Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER})
+@Retention(RUNTIME)
+public @interface substring_constraint {
+
+    String message() default "This string must contain the xg_attribute_1 attribute ";
+    Class<?>[] groups() default {};
+    Class<? extends Payload>[] payload() default {};
+
+    String xg_attribute_1() default "";
+}

test2_constraints_validation/substring_validator.java

@@ -0,0 +1,23 @@
+package test2_constraints_validation;
+
+import javax.validation.ConstraintValidator;
+import javax.validation.ConstraintValidatorContext;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+public class substring_validator implements ConstraintValidator<substring_constraint,String> {
+
+    String xg_attribute_1;
+
+
+    @Override
+    public void initialize(substring_constraint substring_constraint) {
+        this.xg_attribute_1 = substring_constraint.xg_attribute_1();
+    }
+
+    @Override
+    public boolean isValid(String s, ConstraintValidatorContext constraintValidatorContext) {
+        return s.contains(this.xg_attribute_1);
+    }
+}

test2_constraints_validation/xg_substring_class.java

@@ -0,0 +1,15 @@
+package test2_constraints_validation;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+public class xg_substring_class {
+
+
+    @xg_substring_constraint
+    String a = "arxgiovio";
+
+    @xg_substring_constraint
+    String b = "xgarturo";
+
+}

test2_constraints_validation/xg_substring_constraint.java

@@ -0,0 +1,22 @@
+package test2_constraints_validation;
+
+import javax.validation.*;
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+import static java.lang.annotation.ElementType.*;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+
+@Constraint(validatedBy = {xg_substring_validator.class})
+@Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER})
+@Retention(RUNTIME)
+public @interface xg_substring_constraint {
+
+    String message() default "This string doesn't contain xg";
+    Class<?>[] groups() default {};
+    Class<? extends Payload>[] payload() default {};
+
+}

test2_constraints_validation/xg_substring_validator.java

@@ -0,0 +1,20 @@
+package test2_constraints_validation;
+
+import javax.validation.ConstraintValidator;
+import javax.validation.ConstraintValidatorContext;
+
+/**
+ * Created by Giovanni on 29/04/2015.
+ */
+public class xg_substring_validator implements ConstraintValidator<xg_substring_constraint,String> {
+
+    @Override
+    public void initialize(xg_substring_constraint xg_substring_constraint) {
+
+    }
+
+    @Override
+    public boolean isValid(String s, ConstraintValidatorContext constraintValidatorContext) {
+        return s.contains("xg");
+    }
+}