程序包 cn.taketoday.core.env

类 PropertyResolverComposite

java.lang.Object

cn.taketoday.core.env.PropertyResolverComposite

所有已实现的接口:

IterablePropertyResolver, PropertyResolver, Iterable<String>

public class PropertyResolverComposite
extends Object
implements PropertyResolver, IterablePropertyResolver

Composite PropertyResolver implementation

从以下版本开始:

4.0

作者:

TODAY 2021/10/5 00:02

构造器概要

构造器

构造器	说明
PropertyResolverComposite(PropertyResolver... resolvers)
PropertyResolverComposite(List<PropertyResolver> resolverList)

方法概要

修饰符和类型	方法	说明
boolean	containsProperty(String key)	Return whether the given property key is available for resolution, i.e. if the value for the given key is not null.
String	getProperty(String key)	Return the property value associated with the given key, or null if the key cannot be resolved.
<T> T	getProperty(String key, Class<T> targetType)	Return the property value associated with the given key, or null if the key cannot be resolved.
<T> T	getProperty(String key, Class<T> targetType, T defaultValue)	Return the property value associated with the given key, or defaultValue if the key cannot be resolved.
String	getProperty(String key, String defaultValue)	Return the property value associated with the given key, or defaultValue if the key cannot be resolved.
String	getRequiredProperty(String key)	Return the property value associated with the given key (never null).
<T> T	getRequiredProperty(String key, Class<T> targetType)	Return the property value associated with the given key, converted to the given targetType (never null).
Iterator<String>	iterator()	Returns an iterator of property-names.
String	resolvePlaceholders(String text)	Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by PropertyResolver.getProperty(java.lang.String).
String	resolveRequiredPlaceholders(String text)	Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by PropertyResolver.getProperty(java.lang.String).

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 java.lang.Iterable

forEach, spliterator

从接口继承的方法 cn.taketoday.core.env.PropertyResolver

getFlag, getFlag

构造器详细资料

PropertyResolverComposite

public PropertyResolverComposite(PropertyResolver... resolvers)

PropertyResolverComposite

public PropertyResolverComposite(List<PropertyResolver> resolverList)

方法详细资料

containsProperty

public boolean containsProperty(String key)

从接口复制的说明: PropertyResolver

Return whether the given property key is available for resolution, i.e. if the value for the given key is not null.

指定者:

containsProperty 在接口中 PropertyResolver

getProperty

@Nullable
public String getProperty(String key)

从接口复制的说明: PropertyResolver

Return the property value associated with the given key, or null if the key cannot be resolved.

指定者:

getProperty 在接口中 PropertyResolver

参数:

key - the property name to resolve

另请参阅:

• PropertyResolver.getProperty(String, String)
• PropertyResolver.getProperty(String, Class)
• PropertyResolver.getRequiredProperty(String)

getProperty

public String getProperty(String key,
 String defaultValue)

从接口复制的说明: PropertyResolver

Return the property value associated with the given key, or defaultValue if the key cannot be resolved.

指定者:

getProperty 在接口中 PropertyResolver

参数:

key - the property name to resolve

defaultValue - the default value to return if no value is found

另请参阅:

• PropertyResolver.getRequiredProperty(String)
• PropertyResolver.getProperty(String, Class)

getProperty

@Nullable
public <T> T getProperty(String key,
 Class<T> targetType)

从接口复制的说明: PropertyResolver

Return the property value associated with the given key, or null if the key cannot be resolved.

指定者:

getProperty 在接口中 PropertyResolver

参数:

key - the property name to resolve

targetType - the expected type of the property value

另请参阅:

• PropertyResolver.getRequiredProperty(String, Class)

getProperty

public <T> T getProperty(String key,
 Class<T> targetType,
 T defaultValue)

从接口复制的说明: PropertyResolver

Return the property value associated with the given key, or defaultValue if the key cannot be resolved.

指定者:

getProperty 在接口中 PropertyResolver

参数:

key - the property name to resolve

targetType - the expected type of the property value

defaultValue - the default value to return if no value is found

另请参阅:

• PropertyResolver.getRequiredProperty(String, Class)

getRequiredProperty

public String getRequiredProperty(String key)
                           throws IllegalStateException

从接口复制的说明: PropertyResolver

Return the property value associated with the given key (never null).

指定者:

getRequiredProperty 在接口中 PropertyResolver

抛出:

IllegalStateException - if the key cannot be resolved

另请参阅:

• PropertyResolver.getRequiredProperty(String, Class)

getRequiredProperty

public <T> T getRequiredProperty(String key,
 Class<T> targetType)
                          throws IllegalStateException

从接口复制的说明: PropertyResolver

Return the property value associated with the given key, converted to the given targetType (never null).

指定者:

getRequiredProperty 在接口中 PropertyResolver

抛出:

IllegalStateException - if the given key cannot be resolved

resolvePlaceholders

public String resolvePlaceholders(String text)

从接口复制的说明: PropertyResolver

Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by PropertyResolver.getProperty(java.lang.String). Unresolvable placeholders with no default value are ignored and passed through unchanged.

指定者:

resolvePlaceholders 在接口中 PropertyResolver

参数:

text - the String to resolve

返回:

the resolved String (never null)

另请参阅:

• PropertyResolver.resolveRequiredPlaceholders(java.lang.String)

resolveRequiredPlaceholders

public String resolveRequiredPlaceholders(String text)
                                   throws IllegalArgumentException

从接口复制的说明: PropertyResolver

Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by PropertyResolver.getProperty(java.lang.String). Unresolvable placeholders with no default value will cause an IllegalArgumentException to be thrown.

指定者:

resolveRequiredPlaceholders 在接口中 PropertyResolver

返回:

the resolved String (never null)

抛出:

IllegalArgumentException - if given text is null or if any placeholders are unresolvable

iterator

public Iterator<String> iterator()

从接口复制的说明: IterablePropertyResolver

Returns an iterator of property-names.

指定者:

iterator 在接口中 Iterable<String>

指定者:

iterator 在接口中 IterablePropertyResolver

返回:

a property-names Iterator.