Modifier and Type	Class and Description
public static class	ColumnConfig.ValueNumeric

Modifier and Type	Field and Description
private Boolean	autoIncrement
private Boolean	computed
private ConstraintsConfig	constraints
private Boolean	defaultOnNull
private String	defaultValue
private Boolean	defaultValueBoolean
private DatabaseFunction	defaultValueComputed
private String	defaultValueConstraintName
private Date	defaultValueDate
private Number	defaultValueNumeric
private SequenceNextValueFunction	defaultValueSequenceNext
private Boolean	descending
private String	encoding
private String	generationType
private BigInteger	incrementBy
private String	name
private String	remarks
private BigInteger	startWith
private String	type
private String	value
private String	valueBlobFile
private Boolean	valueBoolean
private String	valueClobFile
private DatabaseFunction	valueComputed
private Date	valueDate
private Number	valueNumeric
private SequenceCurrentValueFunction	valueSequenceCurrent
private SequenceNextValueFunction	valueSequenceNext

Access	Constructor and Description
public	ColumnConfig(Column columnSnapshot) Create a ColumnConfig object based on a `Column` snapshot.
public	ColumnConfig() Create am empty ColumnConfig object.

Method Summary

Modifier and Type	Method and Description
public static ColumnConfig[]	arrayFromNames(String names)
public static ColumnConfig	fromName(String name)
public Boolean	getComputed()
public ConstraintsConfig	getConstraints() Returns the ConstraintsConfig this ColumnConfig is using.
public Boolean	getDefaultOnNull()
public String	getDefaultValue() The String default value to assign to this column.
public Boolean	getDefaultValueBoolean() Return the boolean value this column should default to.
public DatabaseFunction	getDefaultValueComputed() Return the function whose value should generate this column's default.
public String	getDefaultValueConstraintName()
public Date	getDefaultValueDate() Return the date value this column should default to.
public Number	getDefaultValueNumeric() Return the numeric value this column should default to.
public Object	getDefaultValueObject() Return the value to set this column's default to according to the setDefaultValue* function that was called.
public SequenceNextValueFunction	getDefaultValueSequenceNext()
public Boolean	getDescending()
public String	getEncoding() Return encoding of a file, referenced via `valueClobFile`.
public String	getGenerationType()
public BigInteger	getIncrementBy() Return the amount to auto increment by.
public String	getName() The name of the column.
public String	getRemarks() Return the remarks to apply to this column.
public LiquibaseSerializable.SerializationType	getSerializableFieldType(String field) Overrides liquibase.serializer.AbstractLiquibaseSerializable.getSerializableFieldType. Implements liquibase.serializer.LiquibaseSerializable.getSerializableFieldType.
public Object	getSerializableFieldValue(String field) Overrides liquibase.serializer.AbstractLiquibaseSerializable.getSerializableFieldValue. Implements liquibase.serializer.LiquibaseSerializable.getSerializableFieldValue.
public String	getSerializedObjectName() Implements liquibase.serializer.LiquibaseSerializable.getSerializedObjectName.
public String	getSerializedObjectNamespace() Implements liquibase.serializer.LiquibaseSerializable.getSerializedObjectNamespace.
public BigInteger	getStartWith() Return the number to start auto incrementing with.
public String	getType() The data type fof the column.
public String	getValue() The String value to set this column to.
public String	getValueBlobFile() Return the file containing the data to load into a BLOB.
public Boolean	getValueBoolean() Return the boolean value this column should be set to.
public String	getValueClobFile() Return the file containing the data to load into a CLOB.
public DatabaseFunction	getValueComputed() Return the function this column should be set from.
public Date	getValueDate() Return the date value this column should be set to.
public Number	getValueNumeric() Return the numeric value this column should be set to.
public Object	getValueObject() Return the value from whatever setValue* function was called.
public SequenceCurrentValueFunction	getValueSequenceCurrent()
public SequenceNextValueFunction	getValueSequenceNext()
public boolean	hasDefaultValue() Returns true if any of the setDefaultValue* functions have had a non-null value set
public Boolean	isAutoIncrement() Returns true if this Column should be set to be auto increment.
public void	load(ParsedNode parsedNode, ResourceAccessor resourceAccessor) Overrides liquibase.serializer.AbstractLiquibaseSerializable.load. Implements liquibase.serializer.LiquibaseSerializable.load.
protected void	loadConstraints(ParsedNode constraintsNode)
public ColumnConfig	setAutoIncrement(Boolean autoIncrement)
public ColumnConfig	setComputed(Boolean computed)
public ColumnConfig	setConstraints(ConstraintsConfig constraints)
public ColumnConfig	setDefaultOnNull(Boolean defaultOnNull)
public ColumnConfig	setDefaultValue(String defaultValue) Sets the string default value to assign to this column.
public ColumnConfig	setDefaultValueBoolean(String defaultValueBoolean) Set the defaultValueBoolean based on a given string.
public ColumnConfig	setDefaultValueBoolean(Boolean defaultValueBoolean)
public ColumnConfig	setDefaultValueComputed(DatabaseFunction defaultValueComputed)
public void	setDefaultValueConstraintName(String defaultValueConstraintName)
public ColumnConfig	setDefaultValueDate(Date defaultValueDate)
public ColumnConfig	setDefaultValueDate(String defaultValueDate) Set the date this column should default to.
public ColumnConfig	setDefaultValueNumeric(String defaultValueNumeric) Set the number this column should use as its default.
public ColumnConfig	setDefaultValueNumeric(Number defaultValueNumeric)
public ColumnConfig	setDefaultValueSequenceNext(SequenceNextValueFunction defaultValueSequenceNext)
public ColumnConfig	setDescending(Boolean descending)
public ColumnConfig	setEncoding(String encoding)
public ColumnConfig	setGenerationType(String generationType)
public ColumnConfig	setIncrementBy(BigInteger incrementBy)
public ColumnConfig	setName(String name)
public ColumnConfig	setName(String name, boolean computed)
public ColumnConfig	setRemarks(String remarks)
public ColumnConfig	setStartWith(BigInteger startWith)
public ColumnConfig	setType(String type)
public ColumnConfig	setValue(String value) Sets the string value this column should be set to.
public ColumnConfig	setValueBlobFile(String valueBlobFile)
public ColumnConfig	setValueBoolean(String valueBoolean) Set the valueBoolean based on a given string.
public ColumnConfig	setValueBoolean(Boolean valueBoolean)
public ColumnConfig	setValueClobFile(String valueClobFile)
public ColumnConfig	setValueComputed(DatabaseFunction valueComputed)
public ColumnConfig	setValueDate(String the Date Value to use (may be null or "null", or start with "now" or "today"). valueDate) Set the date this column should be set to.
public ColumnConfig	setValueDate(Date valueDate)
public ColumnConfig	setValueNumeric(Number valueNumeric)
public ColumnConfig	setValueNumeric(String valueNumeric) Set the number this column should be set to.
public ColumnConfig	setValueSequenceCurrent(SequenceCurrentValueFunction valueSequenceCurrent)
public ColumnConfig	setValueSequenceNext(SequenceNextValueFunction valueSequenceNext)

Inherited from liquibase.serializer.AbstractLiquibaseSerializable:: convertEscaped getSerializableFieldDataTypeClass getSerializableFieldDataTypeClassParameters getSerializableFieldNamespace getSerializableFields serialize serializeValue setSerializableFieldValue shouldAutoLoad

Field Detail

autoIncrement	back to summary
private Boolean autoIncrement

computed	back to summary
private Boolean computed

constraints	back to summary
private ConstraintsConfig constraints

defaultOnNull	back to summary
private Boolean defaultOnNull

defaultValue	back to summary
private String defaultValue

defaultValueBoolean	back to summary
private Boolean defaultValueBoolean

defaultValueComputed	back to summary
private DatabaseFunction defaultValueComputed

defaultValueConstraintName	back to summary
private String defaultValueConstraintName

defaultValueDate	back to summary
private Date defaultValueDate

defaultValueNumeric	back to summary
private Number defaultValueNumeric

defaultValueSequenceNext	back to summary
private SequenceNextValueFunction defaultValueSequenceNext

descending	back to summary
private Boolean descending

encoding	back to summary
private String encoding

generationType	back to summary
private String generationType

incrementBy	back to summary
private BigInteger incrementBy

name	back to summary
private String name

remarks	back to summary
private String remarks

startWith	back to summary
private BigInteger startWith

type	back to summary
private String type

value	back to summary
private String value

valueBlobFile	back to summary
private String valueBlobFile

valueBoolean	back to summary
private Boolean valueBoolean

valueClobFile	back to summary
private String valueClobFile

valueComputed	back to summary
private DatabaseFunction valueComputed

valueDate	back to summary
private Date valueDate

valueNumeric	back to summary
private Number valueNumeric

valueSequenceCurrent	back to summary
private SequenceCurrentValueFunction valueSequenceCurrent

valueSequenceNext	back to summary
private SequenceNextValueFunction valueSequenceNext

Constructor Detail

ColumnConfig	back to summary
public ColumnConfig(Column columnSnapshot) Create a ColumnConfig object based on a `Column` snapshot. It will attempt to set as much as possible based on the information in the snapshot.

ColumnConfig	back to summary
public ColumnConfig() Create am empty ColumnConfig object. Boolean and other object values will default to null.

Method Detail

arrayFromNames	back to summary
public static ColumnConfig[] arrayFromNames(String names)

fromName	back to summary
public static ColumnConfig fromName(String name)

getComputed	back to summary
public Boolean getComputed()

getConstraints	back to summary
public ConstraintsConfig getConstraints() Returns the ConstraintsConfig this ColumnConfig is using. Returns null if nho constraints have been assigned yet.

getDefaultOnNull	back to summary
public Boolean getDefaultOnNull()

getDefaultValue	back to summary
public String getDefaultValue() The String default value to assign to this column. If you do not want the default set by `setDefaultValue(String)` use a more specific function like `getDefaultValueNumeric()` or the more generic `getDefaultValueObject()`

getDefaultValueBoolean back to summary

getDefaultValueBoolean	back to summary
public Boolean getDefaultValueBoolean() Return the boolean value this column should default to. See Also `setDefaultValue(String)`

public Boolean getDefaultValueBoolean()

Return the boolean value this column should default to.

See Also: setDefaultValue(String)

getDefaultValueComputed back to summary

getDefaultValueComputed	back to summary
public DatabaseFunction getDefaultValueComputed() Return the function whose value should generate this column's default. See Also `setDefaultValue(String)`

public DatabaseFunction getDefaultValueComputed()

Return the function whose value should generate this column's default.

See Also: setDefaultValue(String)

getDefaultValueConstraintName	back to summary
public String getDefaultValueConstraintName()

getDefaultValueDate back to summary

getDefaultValueDate	back to summary
public Date getDefaultValueDate() Return the date value this column should default to. See Also `setDefaultValue(String)`

public Date getDefaultValueDate()

Return the date value this column should default to.

See Also: setDefaultValue(String)

getDefaultValueNumeric back to summary

getDefaultValueNumeric	back to summary
public Number getDefaultValueNumeric() Return the numeric value this column should default to. See Also `setDefaultValue(String)`

public Number getDefaultValueNumeric()

Return the numeric value this column should default to.

See Also: setDefaultValue(String)

getDefaultValueObject	back to summary
public Object getDefaultValueObject() Return the value to set this column's default to according to the setDefaultValue* function that was called. If none were called, this function returns null.

getDefaultValueSequenceNext	back to summary
public SequenceNextValueFunction getDefaultValueSequenceNext()

getDescending	back to summary
public Boolean getDescending()

getEncoding	back to summary
public String getEncoding() Return encoding of a file, referenced via `valueClobFile`.

getGenerationType	back to summary
public String getGenerationType()

getIncrementBy	back to summary
public BigInteger getIncrementBy() Return the amount to auto increment by.

getName	back to summary
public String getName() The name of the column.

getRemarks	back to summary
public String getRemarks() Return the remarks to apply to this column.

getSerializableFieldType

back to summary

public LiquibaseSerializable.SerializationType getSerializableFieldType(String field)

Overrides liquibase.serializer.AbstractLiquibaseSerializable.getSerializableFieldType.

Implements liquibase.serializer.LiquibaseSerializable.getSerializableFieldType.

Annotations

@Override

getSerializableFieldValue

back to summary

public Object getSerializableFieldValue(String field)

Overrides liquibase.serializer.AbstractLiquibaseSerializable.getSerializableFieldValue.

Implements liquibase.serializer.LiquibaseSerializable.getSerializableFieldValue.

Annotations

@Override

getSerializedObjectName

back to summary

public String getSerializedObjectName()

Implements liquibase.serializer.LiquibaseSerializable.getSerializedObjectName.

Annotations

@Override

getSerializedObjectNamespace

back to summary

public String getSerializedObjectNamespace()

Implements liquibase.serializer.LiquibaseSerializable.getSerializedObjectNamespace.

Annotations

@Override

getStartWith	back to summary
public BigInteger getStartWith() Return the number to start auto incrementing with.

getType	back to summary
public String getType() The data type fof the column. This value will pass through `liquibase.datatype.DataTypeFactory#fromDescription(String, liquibase.database.Database)` before being included in SQL.

getValue back to summary

public String getValue()

The String value to set this column to. If you do not want the value set by setValue(String) use a more specific function like getValueNumeric() or the more generic getValueObject()

If performing an data manipulation operation, the setValue* functions should be used to set what the columns should be set to. If performing a data definition operation, this setValue* functions should be used to set what existing rows should be set to (may be different than the default value for new rows)

getValueBlobFile back to summary

public String getValueBlobFile()

Return the file containing the data to load into a BLOB.

See Also: setValue(String)

getValueBoolean back to summary

public Boolean getValueBoolean()

Return the boolean value this column should be set to.

See Also: setValue(String)

getValueClobFile back to summary

public String getValueClobFile()

Return the file containing the data to load into a CLOB.

See Also: setValue(String)

getValueComputed back to summary

public DatabaseFunction getValueComputed()

Return the function this column should be set from.

See Also: setValue(String)

getValueDate back to summary

public Date getValueDate()

Return the date value this column should be set to.

See Also: setValue(String)

getValueNumeric back to summary

public Number getValueNumeric()

Return the numeric value this column should be set to.

See Also: setValue(String)

getValueObject	back to summary
public Object getValueObject() Return the value from whatever setValue* function was called. Will return null if none were set.

getValueSequenceCurrent	back to summary
public SequenceCurrentValueFunction getValueSequenceCurrent()

getValueSequenceNext	back to summary
public SequenceNextValueFunction getValueSequenceNext()

hasDefaultValue	back to summary
public boolean hasDefaultValue() Returns true if any of the setDefaultValue* functions have had a non-null value set

isAutoIncrement	back to summary
public Boolean isAutoIncrement() Returns true if this Column should be set to be auto increment. Returns null if auto-increment hasn't been explicitly assigned.

load

back to summary

public void load(ParsedNode parsedNode, ResourceAccessor resourceAccessor) throws ParsedNodeException

Overrides liquibase.serializer.AbstractLiquibaseSerializable.load.

Implements liquibase.serializer.LiquibaseSerializable.load.

Annotations

@Override

loadConstraints	back to summary
protected void loadConstraints(ParsedNode constraintsNode) throws ParsedNodeException

setAutoIncrement	back to summary
public ColumnConfig setAutoIncrement(Boolean autoIncrement)

setComputed	back to summary
public ColumnConfig setComputed(Boolean computed)

setConstraints	back to summary
public ColumnConfig setConstraints(ConstraintsConfig constraints)

setDefaultOnNull	back to summary
public ColumnConfig setDefaultOnNull(Boolean defaultOnNull)

setDefaultValue back to summary

public ColumnConfig setDefaultValue(String defaultValue)

Sets the string default value to assign to this column. If you are trying to set a default value type other than a string, use the more specific functions like setDefaultValueNumeric(Number). This method does no processing of the string. Any trimming is expected to be done beforehand. It does not convert the string "null" to null so that you can set the string "null" as a value if you are feeling particularly crazy.

setDefaultValueBoolean

back to summary

public ColumnConfig setDefaultValueBoolean(String defaultValueBoolean)

Set the defaultValueBoolean based on a given string. If the passed value cannot be parsed as a boolean, it is assumed to be a function that returns a boolean. If the string "null" or an empty string is passed, it will set a null value. If "1" is passed, defaultValueBoolean is set to true. If 0 is passed, defaultValueBoolean is set to false

setDefaultValueBoolean	back to summary
public ColumnConfig setDefaultValueBoolean(Boolean defaultValueBoolean)

setDefaultValueComputed	back to summary
public ColumnConfig setDefaultValueComputed(DatabaseFunction defaultValueComputed)

setDefaultValueConstraintName	back to summary
public void setDefaultValueConstraintName(String defaultValueConstraintName)

setDefaultValueDate	back to summary
public ColumnConfig setDefaultValueDate(Date defaultValueDate)

setDefaultValueDate	back to summary
public ColumnConfig setDefaultValueDate(String defaultValueDate) Set the date this column should default to. Supports any of the date or datetime formats handled by `ISODateFormat`. If the passed value cannot be parsed as a date, it is assumed to be a function that returns a date. If the string "null" or an empty string is passed, it will set a null value.

setDefaultValueNumeric

back to summary

public ColumnConfig setDefaultValueNumeric(String defaultValueNumeric)

Set the number this column should use as its default. Supports integers and decimals, and strips off any wrapping parentheses. If the passed value cannot be parsed as a number, it is assumed to be a function that returns a number. If the value "null" is passed, it will set a null value.

A special case is made for "GENERATED_BY_DEFAULT" which simply sets the ColumnConfig object to autoIncrement.

setDefaultValueNumeric	back to summary
public ColumnConfig setDefaultValueNumeric(Number defaultValueNumeric)

setDefaultValueSequenceNext	back to summary
public ColumnConfig setDefaultValueSequenceNext(SequenceNextValueFunction defaultValueSequenceNext)

setDescending	back to summary
public ColumnConfig setDescending(Boolean descending)

setEncoding	back to summary
public ColumnConfig setEncoding(String encoding)

setGenerationType	back to summary
public ColumnConfig setGenerationType(String generationType)

setIncrementBy	back to summary
public ColumnConfig setIncrementBy(BigInteger incrementBy)

setName	back to summary
public ColumnConfig setName(String name)

setName	back to summary
public ColumnConfig setName(String name, boolean computed)

setRemarks	back to summary
public ColumnConfig setRemarks(String remarks)

setStartWith	back to summary
public ColumnConfig setStartWith(BigInteger startWith)

setType	back to summary
public ColumnConfig setType(String type)

setValue back to summary

public ColumnConfig setValue(String value)

Sets the string value this column should be set to. If you are trying to set a value type other than a string, use the more specific functions like setValueNumeric(Number). This method does no processing of the string. Any trimming is expected to be done beforehand. It does not convert the string "null" to null so that you can set the string "null" as a value if you are feeling particularly crazy.

setValueBlobFile	back to summary
public ColumnConfig setValueBlobFile(String valueBlobFile)

setValueBoolean	back to summary
public ColumnConfig setValueBoolean(String valueBoolean) Set the valueBoolean based on a given string. If the passed value cannot be parsed as a boolean, it is assumed to be a function that returns a boolean. If the string "null" or an empty string is passed, it will set a null value. If "1" is passed, defaultValueBoolean is set to true. If 0 is passed, defaultValueBoolean is set to false

setValueBoolean	back to summary
public ColumnConfig setValueBoolean(Boolean valueBoolean)

setValueClobFile	back to summary
public ColumnConfig setValueClobFile(String valueClobFile)

setValueComputed	back to summary
public ColumnConfig setValueComputed(DatabaseFunction valueComputed)

setValueDate back to summary

public ColumnConfig setValueDate(String valueDate) throws DateParseException

Set the date this column should be set to. Supports any of the date or datetime formats handled by ISODateFormat. If the passed value cannot be parsed as a date, it is assumed to be a function that returns a date. If the string "null" is passed, it will set a null value.

Parameters

valueDate:String: the Date Value to use (may be null or "null", or start with "now" or "today").

Exceptions

DateParseException:: if the columnType isn't supported for "now" or "today" values.

setValueDate	back to summary
public ColumnConfig setValueDate(Date valueDate)

setValueNumeric	back to summary
public ColumnConfig setValueNumeric(Number valueNumeric)

setValueNumeric	back to summary
public ColumnConfig setValueNumeric(String valueNumeric) Set the number this column should be set to. Supports integers and decimals, and strips off any wrapping parentheses. If the passed value cannot be parsed as a number in US locale, it is assumed to be a function that returns a number. If the value "null" is passed, it will set a null value.

setValueSequenceCurrent	back to summary
public ColumnConfig setValueSequenceCurrent(SequenceCurrentValueFunction valueSequenceCurrent)

setValueSequenceNext	back to summary
public ColumnConfig setValueSequenceNext(SequenceNextValueFunction valueSequenceNext)

liquibase.change back to summary

public Class ColumnConfig.ValueNumeric

Class Inheritance

extends Number

java.lang.Object
java.lang.Number
liquibase.change.ColumnConfig.ValueNumeric

Field Summary

Modifier and Type	Field and Description
private final Number	delegate
private static final long	serialVersionUID Hides java.lang.Number.serialVersionUID.
private final String	value

Constructor Summary

Access	Constructor and Description
public	ValueNumeric(final String value, final Number numeric)

Method Summary

Modifier and Type	Method and Description
public double	doubleValue() Implements abstract java.lang.Number.doubleValue. Returns the value of the specified number as a `double`.
public boolean	equals(Object the reference object with which to compare. obj) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public float	floatValue() Implements abstract java.lang.Number.floatValue. Returns the value of the specified number as a `float`.
public Number	getDelegate()
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for this object.
public int	intValue() Implements abstract java.lang.Number.intValue. Returns the value of the specified number as an `int`.
public long	longValue() Implements abstract java.lang.Number.longValue. Returns the value of the specified number as a `long`.
private static ColumnConfig.ValueNumeric	of(Locale locale, String value)
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.

Inherited from java.lang.Number:: byteValue shortValue

Field Detail

delegate	back to summary
private final Number delegate

serialVersionUID	back to summary
private static final long serialVersionUID Hides java.lang.Number.serialVersionUID.

value	back to summary
private final String value

Constructor Detail

ValueNumeric	back to summary
public ValueNumeric(final String value, final Number numeric)

Method Detail

doubleValue back to summary

public double doubleValue()

Implements abstract java.lang.Number.doubleValue.

Doc from java.lang.Number.doubleValue.

Returns the value of the specified number as a double.

Returns:double

the numeric value represented by this object after conversion to type double.

Annotations

@Override

equals back to summary

public boolean equals(Object obj)

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

obj: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

floatValue back to summary

public float floatValue()

Implements abstract java.lang.Number.floatValue.

Doc from java.lang.Number.floatValue.

Returns the value of the specified number as a float.

Returns:float

the numeric value represented by this object after conversion to type float.

Annotations

@Override

getDelegate	back to summary
public Number getDelegate()

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