Top Description Fields Constructors Methods
org.hibernate.boot.model.naming

public Class Identifier

extends Object
implements Comparable<Identifier>
Class Inheritance
All Implemented Interfaces
java.lang.Comparable
Known Direct Subclasses
org.hibernate.boot.model.naming.DatabaseIdentifier
Imports
java.util.Locale, org.hibernate.dialect.Dialect, org.hibernate.internal.util.StringHelper

Models an identifier (name), which may or may not be quoted.
Author
Steve Ebersole

Field Summary

Modifier and TypeField and Description
private final boolean
private final String

Constructor Summary

AccessConstructor and Description
public
Identifier(String
The identifier text.
text
,
boolean
Is this a quoted identifier?
quoted
)

Constructs an identifier instance.

protected
Identifier(String
The identifier text.
text
)

Constructs an unquoted identifier instance.

Method Summary

Modifier and TypeMethod and Description
public static boolean
public int
compareTo(Identifier
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 String
public String

Returns:

The name
getText
()

Get the identifiers name (text)

public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for the object.
public static boolean

Returns:

true if the given identifier text is considered quoted; false otherwise.
isQuoted
(String name)

Is the given identifier text considered quoted.

public static boolean
isQuoted(String name, int start, int end)

public boolean

Returns:

True if this is a quote identifier; false otherwise.
isQuoted
()

Is this a quoted identifier?

public static Identifier
quote(Identifier identifier)

public String

Returns:

if quoted, identifier name enclosed in dialect-specific open- and end-quotes; otherwise, the unquoted identifier.
render
(Dialect
The dialect whose dialect-specific quoting should be used.
dialect
)

If this is a quoted identifier, then return the identifier name enclosed in dialect-specific open- and end-quotes; otherwise, simply return the unquoted identifier.

public String
public static Identifier

Returns:

The identifier form, or null if text was null
toIdentifier
(String
The text form
text
)

Means to generate an Identifier instance from its simple text form.

public static Identifier

Returns:

The identifier form, or null if text was null
toIdentifier
(String
The text form
text
,
boolean
Whether to quote unquoted text forms
quote
)

Means to generate an Identifier instance from its simple text form.

public static Identifier

Returns:

The identifier form, or null if text was null
toIdentifier
(String
The text form
text
,
boolean
Whether to quote unquoted text forms
quote
,
boolean
Controls whether to treat the result as quoted if text contains characters that are invalid for identifiers
quoteOnNonIdentifierChar
)

Means to generate an Identifier instance from its simple text form.

public String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.
Inherited from java.lang.Object:
clonefinalizegetClassnotifynotifyAllwaitwaitwait

Field Detail

isQuotedback to summary
private final boolean isQuoted
textback to summary
private final String text

Constructor Detail

Identifierback to summary
public Identifier(String text, boolean quoted)

Constructs an identifier instance.

Parameters
text:String

The identifier text.

quoted:boolean

Is this a quoted identifier?

Identifierback to summary
protected Identifier(String text)

Constructs an unquoted identifier instance.

Parameters
text:String

The identifier text.

Method Detail

areEqualback to summary
public static boolean areEqual(Identifier id1, Identifier id2)
compareToback to summary
public int compareTo(Identifier 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:Identifier

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
getCanonicalNameback to summary
public String getCanonicalName()
getTextback to summary
public String getText()

Get the identifiers name (text)

Returns:String

The name

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
isQuotedback to summary
public static boolean isQuoted(String name)

Is the given identifier text considered quoted. The following patterns are recognized as quoted:

  • `name`
  • [name]
  • "name"

That final form using double-quote (") is the JPA-defined quoting pattern. Although it is the standard, it makes for ugly declarations.

Returns:boolean

true if the given identifier text is considered quoted; false otherwise.

isQuotedback to summary
public static boolean isQuoted(String name, int start, int end)
isQuotedback to summary
public boolean isQuoted()

Is this a quoted identifier?

Returns:boolean

True if this is a quote identifier; false otherwise.

quoteback to summary
public static Identifier quote(Identifier identifier)
renderback to summary
public String render(Dialect dialect)

If this is a quoted identifier, then return the identifier name enclosed in dialect-specific open- and end-quotes; otherwise, simply return the unquoted identifier.

Parameters
dialect:Dialect

The dialect whose dialect-specific quoting should be used.

Returns:String

if quoted, identifier name enclosed in dialect-specific open- and end-quotes; otherwise, the unquoted identifier.

renderback to summary
public String render()
toIdentifierback to summary
public static Identifier toIdentifier(String text)

Means to generate an Identifier instance from its simple text form.

If passed text is null, null is returned.

If passed text is surrounded in quote markers, the generated Identifier is considered quoted. Quote markers include back-ticks (`), and double-quotes (").

Parameters
text:String

The text form

Returns:Identifier

The identifier form, or null if text was null

toIdentifierback to summary
public static Identifier toIdentifier(String text, boolean quote)

Means to generate an Identifier instance from its simple text form.

If passed text is null, null is returned.

If passed text is surrounded in quote markers, the generated Identifier is considered quoted. Quote markers include back-ticks (`), and double-quotes (").

Parameters
text:String

The text form

quote:boolean

Whether to quote unquoted text forms

Returns:Identifier

The identifier form, or null if text was null

toIdentifierback to summary
public static Identifier toIdentifier(String text, boolean quote, boolean quoteOnNonIdentifierChar)

Means to generate an Identifier instance from its simple text form.

If passed text is null, null is returned.

If passed text is surrounded in quote markers, the generated Identifier is considered quoted. Quote markers include back-ticks (`), double-quotes (") and brackets ([ and ]).

Parameters
text:String

The text form

quote:boolean

Whether to quote unquoted text forms

quoteOnNonIdentifierChar:boolean

Controls whether to treat the result as quoted if text contains characters that are invalid for identifiers

Returns:Identifier

The identifier form, or null if text was null

toStringback to summary
public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object.

Returns:String

a string representation of the object.

Annotations
@Override