Top Description Fields Constructors Methods
org.jooq

pack-priv final Class FlywayVersion

extends Object
implements Comparable<FlywayVersion>
Class Inheritance
All Implemented Interfaces
java.lang.Comparable
Imports
java.math.BigInteger, java.util.ArrayList, .List, java.util.regex.Pattern, org.jooq.tools.StringUtils

A version of a migration.

[#8939] Minor adaptations have been made to use this class in jOOQ directly.

Author
Axel Fontaine

Field Summary

Modifier and TypeField and Description
public static final FlywayVersion
EMPTY

Version for an empty schema.

private static final Pattern
SPLIT_REGEX

Regex for matching proper version format

private final List<BigInteger>
versionParts

The individual parts this version string is composed of.

Constructor Summary

AccessConstructor and Description
private
FlywayVersion(String
The version in one of the following formats: 6, 6.0, 005, 1.2.3.4, 201004200021.
null means that this version refers to an empty schema.
version
)

Creates a Version using this version string.

Method Summary

Modifier and TypeMethod and Description
public int
compareTo(FlywayVersion
the object to be compared.
o
)

Implements java.lang.Comparable.compareTo.

Compares this object with the specified object for order.
public boolean
equals(Object
the reference object with which to compare.
o
)

Overrides java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.
public static FlywayVersion

Returns:

The FlywayVersion
fromVersion
(String
The version String. The value current will be interpreted as FlywayVersion.CURRENT, a marker for the latest version that has been applied to the database.
version
)

Create a FlywayVersion from a version String.

private BigInteger
getOrZero(List<BigInteger> elements, int i)

public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for the object.
private List<BigInteger>

Returns:

The resulting array.
tokenize
(String
The string to split.
versionStr
)

Splits this string into list of Long

Inherited from java.lang.Object:
clonefinalizegetClassnotifynotifyAlltoStringwaitwaitwait

Field Detail

EMPTYback to summary
public static final FlywayVersion EMPTY

Version for an empty schema.

SPLIT_REGEXback to summary
private static final Pattern SPLIT_REGEX

Regex for matching proper version format

versionPartsback to summary
private final List<BigInteger> versionParts

The individual parts this version string is composed of. Ex. 1.2.3.4.0 -> [1, 2, 3, 4, 0]

Constructor Detail

FlywayVersionback to summary
private FlywayVersion(String version)

Creates a Version using this version string.

Parameters
version:String

The version in one of the following formats: 6, 6.0, 005, 1.2.3.4, 201004200021.
null means that this version refers to an empty schema.

Method Detail

compareToback to summary
public int compareTo(FlywayVersion o)

Implements java.lang.Comparable.compareTo.

Doc from java.lang.Comparable.compareTo.

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

The implementor must ensure signum(x.compareTo(y)) == -signum(y.compareTo(x)) for all x and y. (This implies that x.compareTo(y) must throw an exception if and only if y.compareTo(x) throws an exception.)

The implementor must also ensure that the relation is transitive: (x.compareTo(y) > 0 && y.compareTo(z) > 0) implies x.compareTo(z) > 0.

Finally, the implementor must ensure that x.compareTo(y)==0 implies that signum(x.compareTo(z)) == signum(y.compareTo(z)), for all z.

Parameters
o:FlywayVersion

the object to be compared.

Returns:int

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

Annotations
@Override
equalsback to summary
public boolean equals(Object o)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
o:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations
@Override
fromVersionback to summary
public static FlywayVersion fromVersion(String version)

Create a FlywayVersion from a version String.

Parameters
version:String

The version String. The value current will be interpreted as FlywayVersion.CURRENT, a marker for the latest version that has been applied to the database.

Returns:FlywayVersion

The FlywayVersion

getOrZeroback to summary
private BigInteger getOrZero(List<BigInteger> elements, int i)
hashCodeback to summary
public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Returns:int

a hash code value for this object.

Annotations
@Override
tokenizeback to summary
private List<BigInteger> tokenize(String versionStr)

Splits this string into list of Long

Parameters
versionStr:String

The string to split.

Returns:List<BigInteger>

The resulting array.