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liquibase.command

public Class CommandResultDefinition<DataType>

extends Object
implements Comparable<CommandResultDefinition<?>>
Class Inheritance
All Implemented Interfaces
java.lang.Comparable
Imports
java.util.Objects

Defines a known, type-safe result from a specific CommandStep.

Because this definition is tied to a specific step, multiple steps in a pipeline can define results of the same name.

See Also
for constructing new instances.

Nested and Inner Type Summary

Modifier and TypeClass and Description
public static class

Field Summary

Modifier and TypeField and Description
private final Class<DataType>
private DataType
private String
private final String

Constructor Summary

AccessConstructor and Description
protected
CommandResultDefinition(String name, Class<DataType> type)

Method Summary

Modifier and TypeMethod and Description
public int
compareTo(CommandResultDefinition<?>
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 Class<DataType>
getDataType()

The datatype of the result.

public DataType
getDefaultValue()

The default value to use if no value was provided.

public String
getDescription()

The description of the result.

public String
getName()

The name of the result.

public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for this object.

public String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.

Inherited from java.lang.Object:
clonefinalizegetClassnotifynotifyAllwaitwaitwait

Field Detail

dataTypeback to summary
private final Class<DataType> dataType
defaultValueback to summary
private DataType defaultValue
descriptionback to summary
private String description
nameback to summary
private final String name

Constructor Detail

CommandResultDefinitionback to summary
protected CommandResultDefinition(String name, Class<DataType> type)

Method Detail

compareToback to summary
public int compareTo(CommandResultDefinition<?> 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:CommandResultDefinition<?>

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
getDataTypeback to summary
public Class<DataType> getDataType()

The datatype of the result.

getDefaultValueback to summary
public DataType getDefaultValue()

The default value to use if no value was provided.

getDescriptionback to summary
public String getDescription()

The description of the result. Used in generated help documentation.

getNameback to summary
public String getName()

The name of the result. Must be camelCase and alphanumeric.

hashCodeback to summary
public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this 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
toStringback to summary
public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.

Returns:String

a string representation of the object

Annotations
@Override
liquibase.command back to summary

public Class CommandResultDefinition.Building<DataType>

extends Object
Class Inheritance

Field Summary

Modifier and TypeField and Description
private final CommandResultDefinition<DataType>

Constructor Summary

AccessConstructor and Description
pack-priv
Building(CommandResultDefinition<DataType> newCommandResult)

Method Summary

Modifier and TypeMethod and Description
public CommandResultDefinition<DataType>
build()

Complete construction and register the definition with the rest of the system.

public CommandResultDefinition.Building<DataType>
defaultValue(DataType defaultValue)

Set the default value for this result.

public CommandResultDefinition.Building<DataType>
description(String description)

Sets the description for this result.

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

newCommandResultback to summary
private final CommandResultDefinition<DataType> newCommandResult

Constructor Detail

Buildingback to summary
pack-priv Building(CommandResultDefinition<DataType> newCommandResult)

Method Detail

buildback to summary
public CommandResultDefinition<DataType> build()

Complete construction and register the definition with the rest of the system.

defaultValueback to summary
public CommandResultDefinition.Building<DataType> defaultValue(DataType defaultValue)

Set the default value for this result.

descriptionback to summary
public CommandResultDefinition.Building<DataType> description(String description)

Sets the description for this result.