java.lang.Object
- org.osgi.framework.VersionRange

```
public class VersionRange
extends java.lang.Object
```
Version range. A version range is an interval describing a set of versions.
A range has a left (lower) endpoint and a right (upper) endpoint. Each endpoint can be open (excluded from the set) or closed (included in the set).
VersionRange objects are immutable.

从以下版本开始:

1.7

作者:

$Id: 1f5fa660a1a42e83371fe0d2c61ae79ce1cb1710 $

字段概要

字段
修饰符和类型	字段	说明
`static char`	`LEFT_CLOSED`	The left endpoint is closed and is included in the range.
`static char`	`LEFT_OPEN`	The left endpoint is open and is excluded from the range.
`static char`	`RIGHT_CLOSED`	The right endpoint is closed and is included in the range.
`static char`	`RIGHT_OPEN`	The right endpoint is open and is excluded from the range.

构造器概要

构造器
构造器	说明
`VersionRange(char leftType, Version leftEndpoint, Version rightEndpoint, char rightType)`	Creates a version range from the specified versions.
`VersionRange(java.lang.String range)`	Creates a version range from the specified string.

方法概要

所有方法静态方法实例方法具体方法
修饰符和类型	方法	说明
`boolean`	`equals(java.lang.Object object)`	Compares this `VersionRange` object to another object.
`Version`	`getLeft()`	Returns the left endpoint of this version range.
`char`	`getLeftType()`	Returns the type of the left endpoint of this version range.
`Version`	`getRight()`	Returns the right endpoint of this version range.
`char`	`getRightType()`	Returns the type of the right endpoint of this version range.
`int`	`hashCode()`	Returns a hash code value for the object.
`boolean`	`includes(Version version)`	Returns whether this version range includes the specified version.
`VersionRange`	`intersection(VersionRange... ranges)`	Returns the intersection of this version range with the specified version ranges.
`boolean`	`isEmpty()`	Returns whether this version range is empty.
`boolean`	`isExact()`	Returns whether this version range contains only a single version.
`java.lang.String`	`toFilterString(java.lang.String attributeName)`	Returns the filter string for this version range using the specified attribute name.
`java.lang.String`	`toString()`	Returns the string representation of this version range.
`static VersionRange`	`valueOf(java.lang.String range)`	Returns a `VersionRange` object holding the version range in the specified `String`.

从类继承的方法 java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- 字段详细资料
  - LEFT_OPEN
```
public static final char LEFT_OPEN
```
    The left endpoint is open and is excluded from the range.
    The value of LEFT_OPEN is '('.
    
    另请参阅:
    
    常量字段值
  - LEFT_CLOSED
```
public static final char LEFT_CLOSED
```
    The left endpoint is closed and is included in the range.
    The value of LEFT_CLOSED is '['.
    
    另请参阅:
    
    常量字段值
  - RIGHT_OPEN
```
public static final char RIGHT_OPEN
```
    The right endpoint is open and is excluded from the range.
    The value of RIGHT_OPEN is ')'.
    
    另请参阅:
    
    常量字段值
  - RIGHT_CLOSED
```
public static final char RIGHT_CLOSED
```
    The right endpoint is closed and is included in the range.
    The value of RIGHT_CLOSED is ']'.
    
    另请参阅:
    
    常量字段值
- 构造器详细资料
  - VersionRange
```
public VersionRange(char leftType,
                    Version leftEndpoint,
                    Version rightEndpoint,
                    char rightType)
```
    Creates a version range from the specified versions.
    
    参数:
    
    leftType - Must be either LEFT_CLOSED or LEFT_OPEN .
    
    leftEndpoint - Left endpoint of range. Must not be null.
    
    rightEndpoint - Right endpoint of range. May be null to indicate the right endpoint is Infinity.
    
    rightType - Must be either RIGHT_CLOSED or RIGHT_OPEN.
    
    抛出:
    
    java.lang.IllegalArgumentException - If the arguments are invalid.
  - VersionRange
```
public VersionRange(java.lang.String range)
```
    Creates a version range from the specified string.
    Version range string grammar:
    range ::= interval | atleast interval ::= ( '[' | '(' ) left ',' right ( ']' | ')' ) left ::= version right ::= version atleast ::= version
    参数:
    
    range - String representation of the version range. The versions in the range must contain no whitespace. Other whitespace in the range string is ignored. Must not be null.
    
    抛出:
    
    java.lang.IllegalArgumentException - If range is improperly formatted.
- 方法详细资料
  - getLeft
```
public Version getLeft()
```
    Returns the left endpoint of this version range.
    
    返回:
    
    The left endpoint.
  - getRight
```
public Version getRight()
```
    Returns the right endpoint of this version range.
    
    返回:
    
    The right endpoint. May be null which indicates the right endpoint is Infinity.
  - getLeftType
```
public char getLeftType()
```
    Returns the type of the left endpoint of this version range.
    
    返回:
    
    LEFT_CLOSED if the left endpoint is closed or LEFT_OPEN if the left endpoint is open.
  - getRightType
```
public char getRightType()
```
    Returns the type of the right endpoint of this version range.
    
    返回:
    
    RIGHT_CLOSED if the right endpoint is closed or RIGHT_OPEN if the right endpoint is open.
  - includes
```
public boolean includes(Version version)
```
    Returns whether this version range includes the specified version.
    
    参数:
    
    version - The version to test for inclusion in this version range.
    
    返回:
    
    true if the specified version is included in this version range; false otherwise.
  - intersection
```
public VersionRange intersection(VersionRange... ranges)
```
    Returns the intersection of this version range with the specified version ranges.
    
    参数:
    
    ranges - The version ranges to intersect with this version range.
    
    返回:
    
    A version range representing the intersection of this version range and the specified version ranges. If no version ranges are specified, then this version range is returned.
  - isEmpty
```
public boolean isEmpty()
```
    Returns whether this version range is empty. A version range is empty if the set of versions defined by the interval is empty.
    
    返回:
    
    true if this version range is empty; false otherwise.
  - isExact
```
public boolean isExact()
```
    Returns whether this version range contains only a single version.
    
    返回:
    
    true if this version range contains only a single version; false otherwise.
  - toString
```
public java.lang.String toString()
```
    Returns the string representation of this version range.
    The format of the version range string will be a version string if the right end point is Infinity (null) or an interval string.
    
    覆盖:
    
    toString 在类中 java.lang.Object
    
    返回:
    
    The string representation of this version range.
  - hashCode
```
public int hashCode()
```
    Returns a hash code value for the object.
    
    覆盖:
    
    hashCode 在类中 java.lang.Object
    
    返回:
    
    An integer which is a hash code value for this object.
  - equals
```
public boolean equals(java.lang.Object object)
```
    Compares this VersionRange object to another object.
    A version range is considered to be equal to another version range if both the endpoints and their types are equal or if both version ranges are empty.
    
    覆盖:
    
    equals 在类中 java.lang.Object
    
    参数:
    
    object - The VersionRange object to be compared.
    
    返回:
    
    true if object is a VersionRange and is equal to this object; false otherwise.
  - toFilterString
```
public java.lang.String toFilterString(java.lang.String attributeName)
```
    Returns the filter string for this version range using the specified attribute name.
    
    参数:
    
    attributeName - The attribute name to use in the returned filter string.
    
    返回:
    
    A filter string for this version range using the specified attribute name.
    
    抛出:
    
    java.lang.IllegalArgumentException - If the specified attribute name is not a valid attribute name.
    
    另请参阅:
    
    "Core Specification, Filters, for a description of the filter string syntax."
  - valueOf
```
public static VersionRange valueOf(java.lang.String range)
```
    Returns a VersionRange object holding the version range in the specified String.
    See VersionRange(String) for the format of the version range string.
    
    参数:
    
    range - String representation of the version range. The versions in the range must contain no whitespace. Other whitespace in the range string is ignored. Must not be null.
    
    返回:
    
    A VersionRange object representing the version range.
    
    抛出:
    
    java.lang.IllegalArgumentException - If range is improperly formatted.
    
    从以下版本开始:
    
    1.8

类 VersionRange

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

LEFT_OPEN

LEFT_CLOSED

RIGHT_OPEN

RIGHT_CLOSED

构造器详细资料

VersionRange

VersionRange

方法详细资料

getLeft

getRight

getLeftType

getRightType

includes

intersection

isEmpty

isExact

toString

hashCode

equals

toFilterString

valueOf