Liquibase 4.26.0 · liquibase.AbstractExtensibleObject

Modifier and Type	Field and Description
private static final Map<Class<T>, Map<String, Field>>	attributeFieldCache Cache of fields on this object.
private final SmartMap	attributes Additional non-standard attributes.

Access	Constructor and Description
public	AbstractExtensibleObject()
public	AbstractExtensibleObject(Map<String, ?> values) Creates a new object with the given attributes.

Method Summary

Modifier and Type	Method and Description
public Object	clone() Overrides java.lang.Object.clone. Implements liquibase.ExtensibleObject.clone. Expose `Cloneable#clone()` as public
public String	describe() Implements liquibase.ExtensibleObject.describe. Output a full description of this object.
public boolean	equals(Object the reference object with which to compare. obj) Overrides java.lang.Object.equals. Default implementation counts objects equal if their describe() methods return equal strings.
public <T> T	get(String attribute, Class<T> type) Implements liquibase.ExtensibleObject.get, liquibase.ExtensibleObject.get. Return the current value of the given attribute name, converted to the passed type.
public <T> T	get(String attribute, T defaultValue) Implements liquibase.ExtensibleObject.get. Works like `get(String, Class)` but if the attribute is null or not defined, returns the passed defaultValue.
protected <T> T	get(String attribute, T defaultValue, Class<T> type)
private Map<String, Field>	getAttributeFields()
public SortedSet<String>	getAttributes() Implements liquibase.ExtensibleObject.getAttributes. Return the names of all the set attributes.
protected Object	getFieldValue(String attribute, Class<T> type)
public ObjectMetaData	getObjectMetaData() Implements liquibase.ExtensibleObject.getObjectMetaData. Returns the `ObjectMetaData` describing this instance.
public List<E>	getValuePath(String attributes, Class<T> the type to convert the last value in the list to. lastType) Implements liquibase.ExtensibleObject.getValuePath. Traverses dot-separated attributes in the attributePath and returns a list containing all the intermediate values.
public boolean	has(String key) Implements liquibase.ExtensibleObject.has. Return true if the given key is defined.
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for this object.
public ExtensibleObject	set(String attribute, Object value) Implements liquibase.ExtensibleObject.set. Sets the value of the given attribute.
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.

Inherited from java.lang.Object:: finalize getClass notify notifyAll wait wait wait

attributeFieldCache	back to summary
private static final Map<Class<T>, Map<String, Field>> attributeFieldCache Cache of fields on this object. Lazy loaded in `getAttributeFields()`

attributes	back to summary
private final SmartMap attributes Additional non-standard attributes.

AbstractExtensibleObject	back to summary
public AbstractExtensibleObject()

AbstractExtensibleObject	back to summary
public AbstractExtensibleObject(Map<String, ?> values) Creates a new object with the given attributes.

Method Detail

clone back to summary

clone	back to summary
public Object clone() Overrides java.lang.Object.clone. Implements liquibase.ExtensibleObject.clone. Doc from liquibase.ExtensibleObject.clone. Expose `Cloneable#clone()` as public Returns:Object Doc from java.lang.Object.clone. a clone of this instance. Annotations @Override

public Object clone()

Overrides java.lang.Object.clone.

Implements liquibase.ExtensibleObject.clone.

Doc from liquibase.ExtensibleObject.clone.

Expose Cloneable#clone() as public

Returns:Object

Doc from java.lang.Object.clone.

a clone of this instance.

Annotations

@Override

describe	back to summary
public String describe() Implements liquibase.ExtensibleObject.describe. Doc from liquibase.ExtensibleObject.describe. Output a full description of this object. Should include all attributes and values. Annotations @Override

describe

back to summary

public String describe()

Implements liquibase.ExtensibleObject.describe.

Doc from liquibase.ExtensibleObject.describe.

Output a full description of this object. Should include all attributes and values.

Annotations

@Override

equals back to summary

equals	back to summary
public boolean equals(Object obj) Overrides java.lang.Object.equals. Default implementation counts objects equal if their describe() methods return equal strings. Parameters obj:Object Doc from java.lang.Object.equals. the reference object with which to compare. Returns:boolean Doc from java.lang.Object.equals. `true` if this object is the same as the obj argument; `false` otherwise. Annotations @Override

public boolean equals(Object obj)

Overrides java.lang.Object.equals.

Default implementation counts objects equal if their describe() methods return equal strings.

Parameters

obj:Object

Doc from java.lang.Object.equals.

the reference object with which to compare.

Returns:boolean

Doc from java.lang.Object.equals.

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

Annotations

@Override

get back to summary

get	back to summary
public <T> T get(String attribute, Class<T> type) Implements liquibase.ExtensibleObject.get, liquibase.ExtensibleObject.get. Doc from liquibase.ExtensibleObject.get. Return the current value of the given attribute name, converted to the passed type. If the passed attribute is null or not defined, returns null. If you do not know the type to convert to, pass Object.class as the type. Conversion is done using `liquibase.util.ObjectUtil#convert(Object, Class)`. Should traverse dot-separated attributes. Annotations @Override

public <T> T get(String attribute, Class<T> type)

Implements liquibase.ExtensibleObject.get, liquibase.ExtensibleObject.get.

Doc from liquibase.ExtensibleObject.get.

Return the current value of the given attribute name, converted to the passed type. If the passed attribute is null or not defined, returns null. If you do not know the type to convert to, pass Object.class as the type. Conversion is done using liquibase.util.ObjectUtil#convert(Object, Class). Should traverse dot-separated attributes.

Annotations

@Override

get back to summary

get	back to summary
public <T> T get(String attribute, T defaultValue) Implements liquibase.ExtensibleObject.get. Doc from liquibase.ExtensibleObject.get. Works like `get(String, Class)` but if the attribute is null or not defined, returns the passed defaultValue. Uses the type of defaultValue to determine the type to convert the current value to. If null is passed to the default value, no conversion of attribute is made if it is set. If traversing a dot-separated attribute path, return the default value if any along the path are null. Annotations @Override

public <T> T get(String attribute, T defaultValue)

Implements liquibase.ExtensibleObject.get.

Doc from liquibase.ExtensibleObject.get.

Works like get(String, Class) but if the attribute is null or not defined, returns the passed defaultValue. Uses the type of defaultValue to determine the type to convert the current value to.

If null is passed to the default value, no conversion of attribute is made if it is set. If traversing a dot-separated attribute path, return the default value if any along the path are null.

Annotations

@Override

get	back to summary
protected <T> T get(String attribute, T defaultValue, Class<T> type)

getAttributeFields	back to summary
private Map<String, Field> getAttributeFields()

getAttributes	back to summary
public SortedSet<String> getAttributes() Implements liquibase.ExtensibleObject.getAttributes. Doc from liquibase.ExtensibleObject.getAttributes. Return the names of all the set attributes. If an attribute is null the name should not be returned. Should return both "standard" attributes and any custom attributes that have been set. Annotations @Override

getAttributes

back to summary

public SortedSet<String> getAttributes()

Implements liquibase.ExtensibleObject.getAttributes.

Doc from liquibase.ExtensibleObject.getAttributes.

Return the names of all the set attributes. If an attribute is null the name should not be returned. Should return both "standard" attributes and any custom attributes that have been set.

Annotations

@Override

getFieldValue	back to summary
protected Object getFieldValue(String attribute, Class<T> type)

getObjectMetaData back to summary

public ObjectMetaData getObjectMetaData()

Implements liquibase.ExtensibleObject.getObjectMetaData.

Doc from liquibase.ExtensibleObject.getObjectMetaData.

Returns the ObjectMetaData describing this instance.

Annotations

@Override

getValuePath	back to summary
public List<E> getValuePath(String attributes, Class<T> lastType) Implements liquibase.ExtensibleObject.getValuePath. Doc from liquibase.ExtensibleObject.getValuePath. Traverses dot-separated attributes in the attributePath and returns a list containing all the intermediate values. Parameters lastType:Class<T> the type to convert the last value in the list to. Annotations @Override

getValuePath

back to summary

public List<E> getValuePath(String attributes, Class<T> lastType)

Implements liquibase.ExtensibleObject.getValuePath.

Doc from liquibase.ExtensibleObject.getValuePath.

Traverses dot-separated attributes in the attributePath and returns a list containing all the intermediate values.

Parameters

lastType:Class<T>: the type to convert the last value in the list to.

Annotations

@Override

has	back to summary
public boolean has(String key) Implements liquibase.ExtensibleObject.has. Return true if the given key is defined. Annotations @Override

has

back to summary

public boolean has(String key)

Implements liquibase.ExtensibleObject.has.

Return true if the given key is defined.

Annotations

@Override

hashCode back to summary

hashCode	back 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

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

set	back to summary
public ExtensibleObject set(String attribute, Object value) Implements liquibase.ExtensibleObject.set. Doc from liquibase.ExtensibleObject.set. Sets the value of the given attribute. Subclasses can override this method to provide conversion business logic, but must remember that fields can be set directly when no type conversion is needed. Annotations @Override

set

back to summary

public ExtensibleObject set(String attribute, Object value)

Implements liquibase.ExtensibleObject.set.

Doc from liquibase.ExtensibleObject.set.

Sets the value of the given attribute. Subclasses can override this method to provide conversion business logic, but must remember that fields can be set directly when no type conversion is needed.

Annotations

@Override

toString back to summary

toString	back 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

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

public Class AbstractExtensibleObject

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