/
usingvalidator.po
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usingvalidator.po
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# Language zh-CN translations for PACKAGE package.
# Automatically generated, 2010.
#
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: http://bugs.kde.org\n"
"POT-Creation-Date: 2011-11-14 10:37+0000\n"
"PO-Revision-Date: 2010-08-19 22:28+0830\n"
"Last-Translator: Strong Liu <stliu@hibernate.org>\n"
"Language-Team: none\n"
"Language: \n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
#. Tag: title
#: usingvalidator.xml:24
#, no-c-format
msgid "Validation step by step"
msgstr "Validation step by step"
#. Tag: para
#: usingvalidator.xml:26
#, no-c-format
msgid ""
"In this chapter we will see in more detail how to use Hibernate Validator to "
"validate constraints for a given entity model. We will also learn which "
"default constraints the Bean Validation specification provides and which "
"additional constraints are only provided by Hibernate Validator. Let's start "
"with how to add constraints to an entity."
msgstr ""
"在本章中,我们会详细的介绍如何使用Hibernate Validator 来对一个给定的实体模型进"
"行验证. 还会介绍Bean Validation规范提供了哪些默认的约束条件和Hibernate "
"Validator提供了哪些额外的. 让我们先从如何给一个实体添加约束开始."
#. Tag: title
#: usingvalidator.xml:33
#, no-c-format
msgid "Defining constraints"
msgstr "定义约束"
#. Tag: para
#: usingvalidator.xml:35
#, no-c-format
msgid ""
"Constraints in Bean Validation are expressed via Java annotations. In this "
"section we show how to annotate an object model with these annotations. We "
"have to differentiate between three different type of constraint annotations "
"- field-, property-, and class-level annotations."
msgstr ""
"Bean Validation 的约束是通过Java 注解(annotations)来标注的. 在本节中,我们会介"
"绍如何使用这些注解(annotations)来标注一个实体模型. 并且,我们会区分三种不通的"
"注解(annotations) 类型."
#. Tag: para
#: usingvalidator.xml:42
#, no-c-format
msgid ""
"Not all constraints can be placed on all of these levels. In fact, none of "
"the default constraints defined by Bean Validation can be placed at class "
"level. The <classname>java.lang.annotation.Target</classname> annotation in "
"the constraint annotation itself determines on which elements a constraint "
"can be placed. See <xref linkend=\"validator-customconstraints\"/> for more "
"information."
msgstr ""
"不是所有的约束都能够被用在所有的类结构上. 事实上, 没有任何定义在Bean "
"Validation规范中的约束可以被用在class上. 约束定义中的<classname>java.lang."
"annotation.Target</classname>属性定义了这个约束能够被使用在哪个层次结构上. 详"
"细信息请参考<xref linkend=\"validator-customconstraints\"/>."
#. Tag: title
#: usingvalidator.xml:51
#, no-c-format
msgid "Field-level constraints"
msgstr "字段级(field level) 约束"
#. Tag: para
#: usingvalidator.xml:53
#, no-c-format
msgid ""
"Constraints can be expressed by annotating a field of a class. <xref linkend="
"\"example-field-level\"/> shows a field level configuration example:"
msgstr ""
"约束条件能够被标注在类的字段上面, 请参考示例<xref linkend=\"example-field-"
"level\"/>"
#. Tag: title
#: usingvalidator.xml:58
#, no-c-format
msgid "Field level constraint"
msgstr "字段级(field level) 约束"
#. Tag: programlisting
#: usingvalidator.xml:60
#, no-c-format
msgid ""
"package com.mycompany;\n"
"\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class Car {\n"
"\n"
" @NotNull\n"
" private String manufacturer;\n"
"\n"
" @AssertTrue\n"
" private boolean isRegistered;\n"
"\n"
" public Car(String manufacturer, boolean isRegistered) {\n"
" super();\n"
" this.manufacturer = manufacturer;\n"
" this.isRegistered = isRegistered;\n"
" }\n"
"}"
msgstr ""
"package com.mycompany;\n"
"\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class Car {\n"
"\n"
" @NotNull\n"
" private String manufacturer;\n"
"\n"
" @AssertTrue\n"
" private boolean isRegistered;\n"
"\n"
" public Car(String manufacturer, boolean isRegistered) {\n"
" super();\n"
" this.manufacturer = manufacturer;\n"
" this.isRegistered = isRegistered;\n"
" }\n"
"}"
#. Tag: para
#: usingvalidator.xml:63
#, no-c-format
msgid ""
"When using field level constraints field access strategy is used to access "
"the value to be validated. This means the bean validation provider directly "
"accesses the instance variable and does not invoke the property accessor "
"method also if such a method exists."
msgstr ""
"当约束被定义在字段上的时候, 这个字段的值是通过字段访问策略来获取并验证的. 也"
"就是说Bean Validation的实现者会直接访问这个实例变量而不会调用属性的访问器"
"(getter) 即使这个方法存在."
#. Tag: para
#: usingvalidator.xml:69
#, no-c-format
msgid "The access type (private, protected or public) does not matter."
msgstr "这个字段的访问级别( private, protected 或者 public) 对此没有影响."
#. Tag: para
#: usingvalidator.xml:74
#, no-c-format
msgid "Static fields and properties cannot be validated."
msgstr "静态字段或者属性是不会被校验的."
#. Tag: para
#: usingvalidator.xml:78
#, no-c-format
msgid ""
"When validating byte code enhanced objects property level constraints should "
"be used, because the byte code enhancing library won't be able to determine "
"a field access via reflection."
msgstr ""
#. Tag: title
#: usingvalidator.xml:85
#, no-c-format
msgid "Property-level constraints"
msgstr "属性级别约束"
#. Tag: para
#: usingvalidator.xml:87
#, no-c-format
msgid ""
"If your model class adheres to the <ulink type=\"\" url=\"http://java.sun."
"com/javase/technologies/desktop/javabeans/index.jsp\">JavaBeans</ulink> "
"standard, it is also possible to annotate the properties of a bean class "
"instead of its fields. <xref linkend=\"example-property-level\"/> uses the "
"same entity as in <xref linkend=\"example-field-level\"/>, however, property "
"level constraints are used."
msgstr ""
"如果你的模型遵循<ulink type=\"\" url=\"http://java.sun.com/javase/"
"technologies/desktop/javabeans/index.jsp\">JavaBeans</ulink>规范的话, 你还可"
"以把约束标注在属性上. <xref linkend=\"example-property-level\"/>和<xref "
"linkend=\"example-field-level\"/>的唯一不同就是它的约束是定义在属性级别上的."
#. Tag: para
#: usingvalidator.xml:93
#, no-c-format
msgid "The property's getter method has to be annotated, not its setter."
msgstr ""
"如果要定义约束在属性级别上的话,那么只能定义在访问器(getter)上面,不能定义在修"
"改器(setter)上."
#. Tag: title
#: usingvalidator.xml:98
#, no-c-format
msgid "Property level constraint"
msgstr "属性级约束"
#. Tag: programlisting
#: usingvalidator.xml:100
#, no-c-format
msgid ""
"package com.mycompany;\n"
"\n"
"import javax.validation.constraints.AssertTrue;\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class Car {\n"
"\n"
" private String manufacturer;\n"
"\n"
" private boolean isRegistered;\n"
" \n"
" public Car(String manufacturer, boolean isRegistered) {\n"
" super();\n"
" this.manufacturer = manufacturer;\n"
" this.isRegistered = isRegistered;\n"
" }\n"
"\n"
" @NotNull\n"
" public String getManufacturer() {\n"
" return manufacturer;\n"
" }\n"
"\n"
" public void setManufacturer(String manufacturer) {\n"
" this.manufacturer = manufacturer;\n"
" }\n"
"\n"
" @AssertTrue\n"
" public boolean isRegistered() {\n"
" return isRegistered;\n"
" }\n"
"\n"
" public void setRegistered(boolean isRegistered) {\n"
" this.isRegistered = isRegistered;\n"
" }\n"
"}"
msgstr ""
"package com.mycompany;\n"
"\n"
"import javax.validation.constraints.AssertTrue;\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class Car {\n"
"\n"
" private String manufacturer;\n"
"\n"
" private boolean isRegistered;\n"
" \n"
" public Car(String manufacturer, boolean isRegistered) {\n"
" super();\n"
" this.manufacturer = manufacturer;\n"
" this.isRegistered = isRegistered;\n"
" }\n"
"\n"
" @NotNull\n"
" public String getManufacturer() {\n"
" return manufacturer;\n"
" }\n"
"\n"
" public void setManufacturer(String manufacturer) {\n"
" this.manufacturer = manufacturer;\n"
" }\n"
"\n"
" @AssertTrue\n"
" public boolean isRegistered() {\n"
" return isRegistered;\n"
" }\n"
"\n"
" public void setRegistered(boolean isRegistered) {\n"
" this.isRegistered = isRegistered;\n"
" }\n"
"}"
#. Tag: para
#: usingvalidator.xml:103
#, fuzzy, no-c-format
msgid ""
"When using property level constraints property access strategy is used to "
"access the value to be validated. This means the bean validation provider "
"accesses the state via the property accessor method. One advantage of "
"annotating properties instead of fields is that the constraints become part "
"of the constrained type's API that way and users are aware of the existing "
"constraints without having to examine the type's implementation."
msgstr ""
"当约束被定义在属性上的时候, 这个属性的值是通过属性访问策略来获取并验证的. 也"
"就是说Bean Validation的实现者会通过该属性的访问器来获取该属性的值并验证."
#. Tag: para
#: usingvalidator.xml:112
#, fuzzy, no-c-format
msgid ""
"It is recommended to stick either to field <emphasis>or</emphasis> property "
"annotations within one class. It is not recommended to annotate a field "
"<emphasis>and</emphasis> the accompanying getter method as this would cause "
"the field to be validated twice."
msgstr ""
"我们不推荐在一个类里面混合使用字段级约束和属性级约束!因为这样会导致字段被校验"
"两次."
#. Tag: title
#: usingvalidator.xml:121
#, no-c-format
msgid "Class-level constraints"
msgstr "类级别约束"
#. Tag: para
#: usingvalidator.xml:124
#, fuzzy, no-c-format
msgid ""
"Last but not least, a constraint can also be placed on class level. When a "
"constraint annotation is placed on this level the class instance itself "
"passed to the <classname>ConstraintValidator</classname>. Class level "
"constraints are useful if it is necessary to inspect more than a single "
"property of the class to validate it or if a correlation between different "
"state variables has to be evaluated. In <xref linkend=\"example-class-level"
"\"/> we add the property <property>passengers</property> to the class "
"<classname>Car</classname>. We also add the constraint "
"<classname>PassengerCount</classname> on the class level. We will later see "
"how we can actually create this custom constraint (see <xref linkend="
"\"validator-customconstraints\"/>). For now it is enough to know that "
"<classname>PassengerCount</classname> will ensure that there cannot be more "
"passengers in a car than there are seats."
msgstr ""
"最后, 一个约束也能够被放在类级别上. 当一个约束被标注在一个类上的时候,这个类的"
"实例对象被传递给<classname>ConstraintValidator</classname>. 当需要同时校验多"
"个属性来验证一个对象或者一个属性在验证的时候需要另外的属性的信息的时候, 类级"
"别的约束会很有用. 在<xref linkend=\"example-class-level\"/>中, 我们给类"
"<classname>Car</classname>添加了一个<property>passengers</property>的属性. 并"
"且我们还标注了一个<classname>PassengerCount</classname>约束在类级别上. 稍后会"
"看到我们是如何创建这个自定义的约束的(<xref linkend=\"validator-"
"customconstraints\"/>). 现在,我们可以知道,<classname>PassengerCount</"
"classname>会保证这个车里乘客的数量不会超过它的座位数."
#. Tag: title
#: usingvalidator.xml:140
#, no-c-format
msgid "Class level constraint"
msgstr "类级别约束"
#. Tag: programlisting
#: usingvalidator.xml:142
#, no-c-format
msgid ""
"package com.mycompany;\n"
"\n"
"import javax.validation.constraints.Min;\n"
"import javax.validation.constraints.NotNull;\n"
"import javax.validation.constraints.Size;\n"
"\n"
"@PassengerCount\n"
"public class Car {\n"
"\n"
" @NotNull\n"
" private String manufacturer;\n"
"\n"
" @NotNull\n"
" @Size(min = 2, max = 14)\n"
" private String licensePlate;\n"
"\n"
" @Min(2)\n"
" private int seatCount;\n"
" \n"
" private List<Person> passengers;\n"
" \n"
" public Car(String manufacturer, String licencePlate, int seatCount) {\n"
" this.manufacturer = manufacturer;\n"
" this.licensePlate = licencePlate;\n"
" this.seatCount = seatCount;\n"
" }\n"
"\n"
" //getters and setters ...\n"
"}"
msgstr ""
"package com.mycompany;\n"
"\n"
"import javax.validation.constraints.Min;\n"
"import javax.validation.constraints.NotNull;\n"
"import javax.validation.constraints.Size;\n"
"\n"
"@PassengerCount\n"
"public class Car {\n"
"\n"
" @NotNull\n"
" private String manufacturer;\n"
"\n"
" @NotNull\n"
" @Size(min = 2, max = 14)\n"
" private String licensePlate;\n"
"\n"
" @Min(2)\n"
" private int seatCount;\n"
" \n"
" private List<Person> passengers;\n"
" \n"
" public Car(String manufacturer, String licencePlate, int seatCount) {\n"
" this.manufacturer = manufacturer;\n"
" this.licensePlate = licencePlate;\n"
" this.seatCount = seatCount;\n"
" }\n"
"\n"
" //getters and setters ...\n"
"}"
#. Tag: title
#: usingvalidator.xml:147
#, no-c-format
msgid "Constraint inheritance"
msgstr "约束继承"
#. Tag: para
#: usingvalidator.xml:149
#, no-c-format
msgid ""
"When validating an object that implements an interface or extends another "
"class, all constraint annotations on the implemented interface and parent "
"class apply in the same manner as the constraints specified on the validated "
"object itself. To make things clearer let's have a look at the following "
"example:"
msgstr ""
"如果要验证的对象继承于某个父类或者实现了某个接口,那么定义在父类或者接口中的约"
"束会在验证这个对象的时候被自动加载,如同这些约束定义在这个对象所在的类中一样. "
"让我们来看看下面的示例:"
#. Tag: title
#: usingvalidator.xml:156
#, no-c-format
msgid "Constraint inheritance using RentalCar"
msgstr "约束继承"
#. Tag: programlisting
#: usingvalidator.xml:158
#, no-c-format
msgid ""
"package com.mycompany;\n"
"\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class RentalCar extends Car {\n"
"\n"
" private String rentalStation;\n"
" \n"
" public RentalCar(String manufacturer, String rentalStation) {\n"
" super(manufacturer);\n"
" this.rentalStation = rentalStation;\n"
" }\n"
" \n"
" @NotNull\n"
" public String getRentalStation() {\n"
" return rentalStation;\n"
" }\n"
"\n"
" public void setRentalStation(String rentalStation) {\n"
" this.rentalStation = rentalStation;\n"
" }\n"
"}"
msgstr ""
"package com.mycompany;\n"
"\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class RentalCar extends Car {\n"
"\n"
" private String rentalStation;\n"
" \n"
" public RentalCar(String manufacturer, String rentalStation) {\n"
" super(manufacturer);\n"
" this.rentalStation = rentalStation;\n"
" }\n"
" \n"
" @NotNull\n"
" public String getRentalStation() {\n"
" return rentalStation;\n"
" }\n"
"\n"
" public void setRentalStation(String rentalStation) {\n"
" this.rentalStation = rentalStation;\n"
" }\n"
"}"
#. Tag: para
#: usingvalidator.xml:161
#, no-c-format
msgid ""
"Our well-known class <classname>Car</classname> is now extended by "
"<classname>RentalCar</classname> with the additional property "
"<property>rentalStation</property>. If an instance of <classname>RentalCar</"
"classname> is validated, not only the <classname>@NotNull</classname> "
"constraint on <property>rentalStation</property> is validated, but also the "
"constraint on <property>manufacturer</property> from the parent class."
msgstr ""
"我们有了一个新的<classname>RentalCar</classname>类继承自前面我们已经见到的"
"<classname>Car</classname>, 这个子类中增加了一个<property>rentalStation</"
"property>属性. 如果校验一个<classname>RentalCar</classname>的实例对象, 那么不"
"仅会验证属性<property>rentalStation</property>上的 <classname>@NotNull</"
"classname>约束是否合法,还会校验父类中的<property>manufacturer</property>属性."
#. Tag: para
#: usingvalidator.xml:169
#, no-c-format
msgid ""
"The same would hold true, if <classname>Car</classname> were an interface "
"implemented by <classname>RentalCar</classname>."
msgstr "如果类<classname>Car</classname>是一个接口类型的话也是一样的效果."
#. Tag: para
#: usingvalidator.xml:172
#, no-c-format
msgid ""
"Constraint annotations are aggregated if methods are overridden. If "
"<classname>RentalCar</classname> would override the "
"<methodname>getManufacturer()</methodname> method from <classname>Car</"
"classname> any constraints annotated at the overriding method would be "
"evaluated in addition to the <classname>@NotNull</classname> constraint from "
"the super-class."
msgstr ""
"如果类<classname>RentalCar</classname> 重写了父类<classname>Car</classname>的"
"<methodname>getManufacturer()</methodname>方法, 那么定义在父类的这个方法上的"
"约束和子类这个方法上定义的约束都会被校验."
#. Tag: title
#: usingvalidator.xml:181
#, no-c-format
msgid "Object graphs"
msgstr "对象图"
#. Tag: para
#: usingvalidator.xml:183
#, no-c-format
msgid ""
"The Bean Validation API does not only allow to validate single class "
"instances but also complete object graphs. To do so, just annotate a field "
"or property representing a reference to another object with "
"<classname>@Valid</classname>. If the parent object is validated, all "
"referenced objects annotated with <classname>@Valid</classname> will be "
"validated as well (as will be their children etc.). See <xref linkend="
"\"example-car-with-driver\"/>."
msgstr ""
"Bean Validation API不仅能够用来校验单个的实例对象,还能够用来校验完整的对象图."
"要使用这个功能,只需要在一个有关联关系的字段或者属性上标注<classname>@Valid</"
"classname>. 这样,如果一个对象被校验,那么它的所有的标注了<classname>@Valid</"
"classname>的关联对象都会被校验. 请看<xref linkend=\"example-car-with-driver"
"\"/>."
#. Tag: title
#: usingvalidator.xml:192
#, no-c-format
msgid "Class Person"
msgstr "Class Person"
#. Tag: programlisting
#: usingvalidator.xml:194
#, no-c-format
msgid ""
"package com.mycompany;\n"
"\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class Person {\n"
"\n"
" @NotNull\n"
" private String name;\n"
" \n"
" public Person(String name) {\n"
" super();\n"
" this.name = name;\n"
" }\n"
"\n"
" public String getName() {\n"
" return name;\n"
" }\n"
"\n"
" public void setName(String name) {\n"
" this.name = name;\n"
" }\n"
"}"
msgstr ""
"package com.mycompany;\n"
"\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class Person {\n"
"\n"
" @NotNull\n"
" private String name;\n"
" \n"
" public Person(String name) {\n"
" super();\n"
" this.name = name;\n"
" }\n"
"\n"
" public String getName() {\n"
" return name;\n"
" }\n"
"\n"
" public void setName(String name) {\n"
" this.name = name;\n"
" }\n"
"}"
#. Tag: title
#: usingvalidator.xml:198
#, no-c-format
msgid "Adding a driver to the car"
msgstr "Adding a driver to the car"
#. Tag: programlisting
#: usingvalidator.xml:200
#, no-c-format
msgid ""
"package com.mycompany;\n"
"\n"
"import javax.validation.Valid;\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class Car {\n"
"\n"
" @NotNull\n"
" @Valid\n"
" private Person driver;\n"
" \n"
" public Car(Person driver) {\n"
" this.driver = driver;\n"
" }\n"
"\n"
" //getters and setters ...\n"
"}"
msgstr ""
"package com.mycompany;\n"
"\n"
"import javax.validation.Valid;\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class Car {\n"
"\n"
" @NotNull\n"
" @Valid\n"
" private Person driver;\n"
" \n"
" public Car(Person driver) {\n"
" this.driver = driver;\n"
" }\n"
"\n"
" //getters and setters ...\n"
"}"
#. Tag: para
#: usingvalidator.xml:203
#, no-c-format
msgid ""
"If an instance of <classname>Car</classname> is validated, the referenced "
"<classname>Person</classname> object will be validated as well, as the "
"<property>driver</property> field is annotated with <classname>@Valid</"
"classname>. Therefore the validation of a <classname>Car</classname> will "
"fail if the <property>name</property> field of the referenced "
"<classname>Person</classname> instance is <code>null</code>."
msgstr ""
"如果校验<classname>Car</classname>的实例对象的话,因为它的<property>driver</"
"property>属性标注了<classname>@Valid</classname>, 那么关联的"
"<classname>Person</classname>也会被校验. 所以,如果对象<classname>Person</"
"classname>的<property>name</property>属性如果是<code>null</code>的话,那么校验"
"会失败."
#. Tag: para
#: usingvalidator.xml:211
#, no-c-format
msgid ""
"Object graph validation also works for collection-typed fields. That means "
"any attributes that"
msgstr "关联校验也适用于集合类型的字段, 也就是说,任何下列的类型:"
#. Tag: para
#: usingvalidator.xml:216
#, no-c-format
msgid "are arrays"
msgstr "数组"
#. Tag: para
#: usingvalidator.xml:220
#, no-c-format
msgid ""
"implement <classname>java.lang.Iterable</classname> (especially "
"<classname>Collection</classname>, <classname>List</classname> and "
"<classname>Set</classname>)"
msgstr ""
"实现了<classname>java.lang.Iterable</classname>接口( 例如"
"<classname>Collection</classname>, <classname>List</classname> 和 "
"<classname>Set</classname>)"
#. Tag: para
#: usingvalidator.xml:226
#, no-c-format
msgid "implement <classname>java.util.Map</classname>"
msgstr "实现了<classname>java.util.Map</classname>接口"
#. Tag: para
#: usingvalidator.xml:230
#, no-c-format
msgid ""
"can be annotated with <classname>@Valid</classname>, which will cause each "
"contained element to be validated, when the parent object is validated."
msgstr ""
"如果标注了<classname>@Valid</classname>, 那么当主对象被校验的时候,这些集合对"
"象中的元素都会被校验."
#. Tag: title
#: usingvalidator.xml:235
#, no-c-format
msgid "Car with a list of passengers"
msgstr "Car with a list of passengers"
#. Tag: programlisting
#: usingvalidator.xml:237
#, no-c-format
msgid ""
"package com.mycompany;\n"
"\n"
"import java.util.ArrayList;\n"
"import java.util.List;\n"
"\n"
"import javax.validation.Valid;\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class Car {\n"
"\n"
" @NotNull\n"
" @Valid\n"
" private List<Person> passengers = new ArrayList<Person>();\n"
"\n"
" public Car(List<Person> passengers) {\n"
" this.passengers = passengers;\n"
" }\n"
"\n"
" //getters and setters ...\n"
"}"
msgstr ""
"package com.mycompany;\n"
"\n"
"import java.util.ArrayList;\n"
"import java.util.List;\n"
"\n"
"import javax.validation.Valid;\n"
"import javax.validation.constraints.NotNull;\n"
"\n"
"public class Car {\n"
"\n"
" @NotNull\n"
" @Valid\n"
" private List<Person> passengers = new ArrayList<Person>();\n"
"\n"
" public Car(List<Person> passengers) {\n"
" this.passengers = passengers;\n"
" }\n"
"\n"
" //getters and setters ...\n"
"}"
#. Tag: para
#: usingvalidator.xml:240
#, no-c-format
msgid ""
"If a <classname>Car</classname> instance is validated, a "
"<classname>ConstraintValidation</classname> will be created, if any of the "
"<classname>Person</classname> objects contained in the <property>passengers</"
"property> list has a <code>null</code> name."
msgstr ""
"当校验一个<classname>Car</classname>的实例的时候,如果<property>passengers</"
"property> list中包含的任何一个<classname>Person</classname>对象没有名字的话,"
"都会导致校验失败(a <classname>ConstraintValidation</classname> will be "
"created)."
#. Tag: para
#: usingvalidator.xml:244
#, no-c-format
msgid ""
"<classname>null</classname> values are getting ignored when validating "
"object graphs."
msgstr "对象图校验的时候是会被忽略<classname>null</classname>值的."
#. Tag: title
#: usingvalidator.xml:251
#, no-c-format
msgid "Validating constraints"
msgstr "校验约束"
#. Tag: para
#: usingvalidator.xml:253
#, no-c-format
msgid ""
"The <classname>Validator</classname> interface is the main entry point to "
"Bean Validation. In <xref linkend=\"section-validator-instance\"/> we will "
"first show how to obtain an <classname>Validator</classname> instance. "
"Afterwards we will learn how to use the different methods of the "
"<classname>Validator</classname> interface."
msgstr ""
"<classname>Validator</classname> 是Bean Validation中最主要的接口, 我们会在"
"<xref linkend=\"section-validator-instance\"/>中详细介绍如何获取一个"
"<classname>Validator</classname>的实例, 现在先让我们来看看如何使用"
"<classname>Validator</classname>接口中的各个方法. "
#. Tag: title
#: usingvalidator.xml:260
#, no-c-format
msgid "Obtaining a <classname>Validator</classname> instance"
msgstr "获取一个<classname>Validator</classname>的实例"
#. Tag: para
#: usingvalidator.xml:262
#, no-c-format
msgid ""
"The first step towards validating an entity instance is to get hold of a "
"<classname>Validator</classname> instance. The road to this instance leads "
"via the <classname>Validation</classname> class and a "
"<classname>ValidatorFactory</classname>. The easiest way is to use the "
"static <methodname>Validation.buildDefaultValidatorFactory()</methodname> "
"method:"
msgstr ""
"对一个实体对象验证之前首先需要有个<classname>Validator</classname>对象, 而这"
"个对象是需要通过<classname>Validation</classname> 类和 "
"<classname>ValidatorFactory</classname>来创建的. 最简单的方法是调用"
"<methodname>Validation.buildDefaultValidatorFactory()</methodname> 这个静态方"
"法. "
#. Tag: title
#: usingvalidator.xml:271
#, no-c-format
msgid "Validation.buildDefaultValidatorFactory()"
msgstr "Validation.buildDefaultValidatorFactory()"
#. Tag: programlisting
#: usingvalidator.xml:273
#, no-c-format
msgid ""
"ValidatorFactory factory = Validation.buildDefaultValidatorFactory();\n"
"Validator validator = factory.getValidator();"
msgstr ""
"ValidatorFactory factory = Validation.buildDefaultValidatorFactory();\n"
"Validator validator = factory.getValidator();"
#. Tag: para
#: usingvalidator.xml:276
#, no-c-format
msgid ""
"For other ways of obtaining a Validator instance see <xref linkend="
"\"validator-bootstrapping\"/>. For now we just want to see how we can use "
"the <classname>Validator</classname> instance to validate entity instances."
msgstr ""
"<xref linkend=\"validator-bootstrapping\"/>介绍了其他的获取Validator实例的方"
"法. 现在我们的目标是学习如何使用<classname>Validator</classname> 来校验实体对"
"象."
#. Tag: title
#: usingvalidator.xml:283
#, no-c-format
msgid "Validator methods"
msgstr "Validator中的方法"
#. Tag: para
#: usingvalidator.xml:285
#, no-c-format
msgid ""
"The <classname>Validator</classname> interface contains three methods that "
"can be used to either validate entire entities or just a single properties "
"of the entity."
msgstr ""
"<classname>Validator</classname>中有三个方法能够被用来校验整个实体对象或者实"
"体对象中的属性."
#. Tag: para
#: usingvalidator.xml:289
#, no-c-format
msgid ""
"All three methods return a <classname>Set<ConstraintViolation></"
"classname>. The set is empty, if the validation succeeds. Otherwise a "
"<classname>ConstraintViolation</classname> instance is added for each "
"violated constraint."
msgstr ""
"这三个方法都会返回一个<classname>Set<ConstraintViolation></classname>对"
"象, 如果整个验证过程没有发现问题的话,那么这个set是空的, 否则, 每个违反约束的"
"地方都会被包装成一个<classname>ConstraintViolation</classname>的实例然后添加"
"到set当中. "
#. Tag: para
#: usingvalidator.xml:295
#, no-c-format
msgid ""
"All the validation methods have a var-args parameter which can be used to "
"specify, which validation groups shall be considered when performing the "
"validation. If the parameter is not specified the default validation group "
"(<classname>javax.validation.groups.Default</classname>) will be used. We "
"will go into more detail on the topic of validation groups in"
msgstr ""
"所有的校验方法都接收零个或多个用来定义此次校验是基于哪个校验组的参数. 如果没"
"有给出这个参数的话, 那么此次校验将会基于默认的校验组 (<classname>javax."
"validation.groups.Default</classname>). "
#. Tag: methodname
#: usingvalidator.xml:304
#, no-c-format
msgid "validate"
msgstr "validate"
#. Tag: para
#: usingvalidator.xml:306
#, no-c-format
msgid ""
"Use the <methodname>validate()</methodname> method to perform validation of "
"all constraints of a given entity instance (see <xref linkend=\"example-"
"validator-validate\"/> )."
msgstr ""
"使用<methodname>validate()</methodname>方法对一个给定的实体对象中定义的所有约"
"束条件进行校验 (<xref linkend=\"example-validator-validate\"/> )."
#. Tag: title
#: usingvalidator.xml:311
#, no-c-format
msgid "Usage of <methodname>Validator.validate()</methodname>"
msgstr "<methodname>Validator.validate()</methodname> 使用方法"
#. Tag: programlisting
#: usingvalidator.xml:314
#, no-c-format
msgid ""
"ValidatorFactory factory = Validation.buildDefaultValidatorFactory();\n"
"Validator validator = factory.getValidator();\n"
"\n"
"Car car = new Car(null);\n"
"\n"
"Set<ConstraintViolation<Car>> constraintViolations = validator."
"validate(car);\n"
"\n"
"assertEquals(1, constraintViolations.size());\n"
"assertEquals(\"may not be null\", constraintViolations.iterator().next()."
"getMessage());"
msgstr ""
"ValidatorFactory factory = Validation.buildDefaultValidatorFactory();\n"
"Validator validator = factory.getValidator();\n"
"\n"
"Car car = new Car(null);\n"
"\n"
"Set<ConstraintViolation<Car>> constraintViolations = validator."
"validate(car);\n"
"\n"
"assertEquals(1, constraintViolations.size());\n"
"assertEquals(\"may not be null\", constraintViolations.iterator().next()."
"getMessage());"
#. Tag: methodname
#: usingvalidator.xml:319
#, no-c-format
msgid "validateProperty"
msgstr "validateProperty"
#. Tag: para
#: usingvalidator.xml:321
#, no-c-format
msgid ""
"With help of the <methodname>validateProperty()</methodname> a single named "
"property of a given object can be validated. The property name is the "
"JavaBeans property name."
msgstr ""
"通过<methodname>validateProperty()</methodname>可以对一个给定实体对象的单个属"
"性进行校验. 其中属性名称需要符合JavaBean规范中定义的属性名称."
#. Tag: title
#: usingvalidator.xml:326
#, no-c-format
msgid "Usage of <methodname>Validator.validateProperty()</methodname>"
msgstr "<methodname>Validator.validateProperty()</methodname>使用方法"
#. Tag: programlisting
#: usingvalidator.xml:329
#, no-c-format
msgid ""
"Validator validator = Validation.buildDefaultValidatorFactory().getValidator"
"();\n"
"\n"
"Car car = new Car(null);\n"
"\n"
"Set<ConstraintViolation<Car>> constraintViolations = validator."
"validateProperty(car, \"manufacturer\");\n"
"\n"
"assertEquals(1, constraintViolations.size());\n"
"assertEquals(\"may not be null\", constraintViolations.iterator().next()."
"getMessage());"
msgstr ""
"Validator validator = Validation.buildDefaultValidatorFactory().getValidator"
"();\n"
"\n"
"Car car = new Car(null);\n"
"\n"
"Set<ConstraintViolation<Car>> constraintViolations = validator."
"validateProperty(car, \"manufacturer\");\n"