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## org.codehaus.groovy.grails.validation
Class ConstrainedProperty

    java.lang.Object
      org.codehaus.groovy.grails.validation.ConstrainedProperty

    public class ConstrainedProperty

extends Object

Provides the ability to set contraints against a properties of a class. Constraints can either be set via the property setters or via the

    applyConstraint(String constraintName, Object constrainingValue)

in combination with a constraint constant. Example: `... ConstrainedProperty cp = new ConstrainedProperty(owningClass, propertyName, propertyType); if(cp.supportsConstraint( ConstrainedProperty.EMAIL_CONSTRAINT ) ) { cp.applyConstraint( ConstrainedProperty.EMAIL_CONSTRAINT, new Boolean(true) ); }` Alternatively constraints can be applied directly using the java bean getters/setters if a static (as oposed to dynamic) approach to constraint creation is possible: `cp.setEmail(true)`

Since:
  07-Nov-2005
Author:
  Graeme Rocher

Field Summary
`protected Map` | `appliedConstraints`
`static String` | `BLANK_CONSTRAINT`
`protected static ResourceBundle` | `bundle`
`protected static Map` | `constraints`
`static String` | `CREDIT_CARD_CONSTRAINT`
`(package private) static String` | `DEFAULT_BLANK_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_DOESNT_MATCH_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_INVALID_CREDIT_CARD_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_INVALID_EMAIL_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_INVALID_MAX_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_INVALID_MAX_SIZE_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_INVALID_MIN_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_INVALID_MIN_SIZE_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_INVALID_RANGE_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_INVALID_SIZE_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_INVALID_URL_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_INVALID_VALIDATOR_MESSAGE_CODE`
`protected static Map` | `DEFAULT_MESSAGES`
`(package private) static String` | `DEFAULT_NOT_EQUAL_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_NOT_INLIST_MESSAGE_CODE`
`(package private) static String` | `DEFAULT_NULL_MESSAGE_CODE`
`static String` | `EMAIL_CONSTRAINT`
`protected static String` | `EXCEEDED_SUFFIX`
`static String` | `IN_LIST_CONSTRAINT`
`protected static String` | `INVALID_SUFFIX`
`protected static org.apache.commons.logging.Log` | `LOG`
`static String` | `MATCHES_CONSTRAINT`
`static String` | `MAX_CONSTRAINT`
`static String` | `MAX_SIZE_CONSTRAINT`
`protected MessageSource` | `messageSource`
`static String` | `MIN_CONSTRAINT`
`static String` | `MIN_SIZE_CONSTRAINT`
`static String` | `NOT_EQUAL_CONSTRAINT`
`protected static String` | `NOT_PREFIX`
`protected static String` | `NOTMET_SUFFIX`
`static String` | `NULLABLE_CONSTRAINT`
`protected Class` | `owningClass`
`protected String` | `propertyName`
`protected Class` | `propertyType`
`static String` | `RANGE_CONSTRAINT`
`static String` | `SCALE_CONSTRAINT`
`static String` | `SIZE_CONSTRAINT`
`protected static String` | `TOOBIG_SUFFIX`
`protected static String` | `TOOLONG_SUFFIX`
`protected static String` | `TOOSHORT_SUFFIX`
`protected static String` | `TOOSMALL_SUFFIX`
`static String` | `URL_CONSTRAINT`
`static String` | `VALIDATOR_CONSTRAINT`

Constructor Summary
`ConstrainedProperty(Class clazz, String propertyName, Class propertyType)` Constructs a new ConstrainedProperty for the given arguments

Method Summary
`void` | `addMetaConstraint(String name, Object value)` Adds a meta constraints which is a non-validating informational constraint
`void` | `applyConstraint(String constraintName, Object constrainingValue)` Applies a constraint for the specified name and consraint value
`Constraint` | `getAppliedConstraint(String name)` Obtains an applied constraint by name
`Collection` | `getAppliedConstraints()`
`Map` | `getAttributes()`
`String` | `getFormat()`
`List` | `getInList()`
`String` | `getMatches()`
`Comparable` | `getMax()`
`Integer` | `getMaxSize()`
`Object` | `getMetaConstraintValue(String name)` Obtains the value of the named meta constraint
`Comparable` | `getMin()`
`Integer` | `getMinSize()`
`Object` | `getNotEqual()`
`int` | `getOrder()`
`String` | `getPropertyName()`
`Class` | `getPropertyType()`
`groovy.lang.Range` | `getRange()`
`Integer` | `getScale()`
`groovy.lang.Range` | `getSize()`
`String` | `getWidget()`
`boolean` | `hasAppliedConstraint(String constraintName)`
`static boolean` | `hasRegisteredConstraint(String constraintName)`
`boolean` | `isBlank()`
`boolean` | `isCreditCard()`
`boolean` | `isDisplay()`
`boolean` | `isEditable()`
`boolean` | `isEmail()`
`boolean` | `isNullable()`
`boolean` | `isPassword()`
`boolean` | `isUrl()`
`static void` | `registerNewConstraint(String name, Class constraintClass)`
`static void` | `registerNewConstraint(String name, ConstraintFactory factory)`
`void` | `setAttributes(Map attributes)`
`void` | `setBlank(boolean blank)`
`void` | `setCreditCard(boolean creditCard)`
`void` | `setDisplay(boolean display)`
`void` | `setEditable(boolean editable)`
`void` | `setEmail(boolean email)`
`void` | `setFormat(String format)`
`void` | `setInList(List inList)`
`void` | `setMatches(String regex)`
`void` | `setMax(Comparable max)`
`void` | `setMaxSize(Integer maxSize)`
`void` | `setMessageSource(MessageSource source)` The message source used to evaluate error messages
`void` | `setMin(Comparable min)`
`void` | `setMinSize(Integer minSize)`
`void` | `setNotEqual(Object notEqual)`
`void` | `setNullable(boolean nullable)`
`void` | `setOrder(int order)`
`void` | `setPassword(boolean password)`
`void` | `setPropertyName(String propertyName)`
`void` | `setRange(groovy.lang.Range range)`
`void` | `setSize(groovy.lang.Range size)`
`void` | `setUrl(boolean url)`
`void` | `setWidget(String widget)`
`boolean` | `supportsContraint(String constraintName)` Checks with this ConstraintedProperty instance supports applying the specified constraint
`String` | `toString()`
`void` | `validate(Object target, Object propertyValue, Errors errors)` Validate this constrainted property against specified property value

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### DEFAULT_NULL_MESSAGE_CODE

    static final String DEFAULT_NULL_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_INVALID_MIN_SIZE_MESSAGE_CODE

    static final String DEFAULT_INVALID_MIN_SIZE_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_INVALID_MAX_SIZE_MESSAGE_CODE

    static final String DEFAULT_INVALID_MAX_SIZE_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_NOT_EQUAL_MESSAGE_CODE

    static final String DEFAULT_NOT_EQUAL_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_INVALID_MIN_MESSAGE_CODE

    static final String DEFAULT_INVALID_MIN_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_INVALID_MAX_MESSAGE_CODE

    static final String DEFAULT_INVALID_MAX_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_INVALID_SIZE_MESSAGE_CODE

    static final String DEFAULT_INVALID_SIZE_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_NOT_INLIST_MESSAGE_CODE

    static final String DEFAULT_NOT_INLIST_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_INVALID_RANGE_MESSAGE_CODE

    static final String DEFAULT_INVALID_RANGE_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_INVALID_EMAIL_MESSAGE_CODE

    static final String DEFAULT_INVALID_EMAIL_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_INVALID_CREDIT_CARD_MESSAGE_CODE

    static final String DEFAULT_INVALID_CREDIT_CARD_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_INVALID_URL_MESSAGE_CODE

    static final String DEFAULT_INVALID_URL_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_INVALID_VALIDATOR_MESSAGE_CODE

    static final String DEFAULT_INVALID_VALIDATOR_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_DOESNT_MATCH_MESSAGE_CODE

    static final String DEFAULT_DOESNT_MATCH_MESSAGE_CODE

See Also:
  Constant Field Values

### DEFAULT_BLANK_MESSAGE_CODE

    static final String DEFAULT_BLANK_MESSAGE_CODE

See Also:
  Constant Field Values

### bundle

    protected static final ResourceBundle bundle

### CREDIT_CARD_CONSTRAINT

    public static final String CREDIT_CARD_CONSTRAINT

See Also:
  Constant Field Values

### EMAIL_CONSTRAINT

    public static final String EMAIL_CONSTRAINT

See Also:
  Constant Field Values

### BLANK_CONSTRAINT

    public static final String BLANK_CONSTRAINT

See Also:
  Constant Field Values

### RANGE_CONSTRAINT

    public static final String RANGE_CONSTRAINT

See Also:
  Constant Field Values

### IN_LIST_CONSTRAINT

    public static final String IN_LIST_CONSTRAINT

See Also:
  Constant Field Values

### URL_CONSTRAINT

    public static final String URL_CONSTRAINT

See Also:
  Constant Field Values

### MATCHES_CONSTRAINT

    public static final String MATCHES_CONSTRAINT

See Also:
  Constant Field Values

### SIZE_CONSTRAINT

    public static final String SIZE_CONSTRAINT

See Also:
  Constant Field Values

### MIN_CONSTRAINT

    public static final String MIN_CONSTRAINT

See Also:
  Constant Field Values

### MAX_CONSTRAINT

    public static final String MAX_CONSTRAINT

See Also:
  Constant Field Values

### MAX_SIZE_CONSTRAINT

    public static final String MAX_SIZE_CONSTRAINT

See Also:
  Constant Field Values

### MIN_SIZE_CONSTRAINT

    public static final String MIN_SIZE_CONSTRAINT

See Also:
  Constant Field Values

### SCALE_CONSTRAINT

    public static final String SCALE_CONSTRAINT

See Also:
  Constant Field Values

### NOT_EQUAL_CONSTRAINT

    public static final String NOT_EQUAL_CONSTRAINT

See Also:
  Constant Field Values

### NULLABLE_CONSTRAINT

    public static final String NULLABLE_CONSTRAINT

See Also:
  Constant Field Values

### VALIDATOR_CONSTRAINT

    public static final String VALIDATOR_CONSTRAINT

See Also:
  Constant Field Values

### INVALID_SUFFIX

    protected static final String INVALID_SUFFIX

See Also:
  Constant Field Values

### EXCEEDED_SUFFIX

    protected static final String EXCEEDED_SUFFIX

See Also:
  Constant Field Values

### NOTMET_SUFFIX

    protected static final String NOTMET_SUFFIX

See Also:
  Constant Field Values

### NOT_PREFIX

    protected static final String NOT_PREFIX

See Also:
  Constant Field Values

### TOOBIG_SUFFIX

    protected static final String TOOBIG_SUFFIX

See Also:
  Constant Field Values

### TOOLONG_SUFFIX

    protected static final String TOOLONG_SUFFIX

See Also:
  Constant Field Values

### TOOSMALL_SUFFIX

    protected static final String TOOSMALL_SUFFIX

See Also:
  Constant Field Values

### TOOSHORT_SUFFIX

    protected static final String TOOSHORT_SUFFIX

See Also:
  Constant Field Values

### constraints

    protected static Map constraints

### DEFAULT_MESSAGES

    protected static final Map DEFAULT_MESSAGES

### LOG

    protected static final org.apache.commons.logging.Log LOG

### propertyName

    protected String propertyName

### propertyType

    protected Class propertyType

### appliedConstraints

    protected Map appliedConstraints

### owningClass

    protected Class owningClass

### messageSource

    protected MessageSource messageSource

Constructor Detail

### ConstrainedProperty

    public ConstrainedProperty(Class clazz,
                               String propertyName,
                               Class propertyType)

  Constructs a new ConstrainedProperty for the given arguments

  Parameters:
    `clazz` - The owning class
    `propertyName` - The name of the property
    `propertyType` - The property type

Method Detail

### registerNewConstraint

    public static void registerNewConstraint(String name,
                                             Class constraintClass)

### registerNewConstraint

    public static void registerNewConstraint(String name,
                                             ConstraintFactory factory)

### hasRegisteredConstraint

    public static boolean hasRegisteredConstraint(String constraintName)

### getAppliedConstraints

    public Collection getAppliedConstraints()

  Returns:
    Returns the appliedConstraints.

### getAppliedConstraint

    public Constraint getAppliedConstraint(String name)

  Obtains an applied constraint by name

  Parameters:
    `name` - The name of the constraint
  Returns:
    The applied constraint

### hasAppliedConstraint

    public boolean hasAppliedConstraint(String constraintName)

  Parameters:
    `constraintName` - The name of the constraint to check
  Returns:
    Returns true if the specified constraint name is being applied to this property

### getPropertyType

    public Class getPropertyType()

  Returns:
    Returns the propertyType.

### getMax

    public Comparable getMax()

  Returns:
    Returns the max.

### setMax

    public void setMax(Comparable max)

  Parameters:
    `max` - The max to set.

### getMin

    public Comparable getMin()

  Returns:
    Returns the min.

### setMin

    public void setMin(Comparable min)

  Parameters:
    `min` - The min to set.

### getInList

    public List getInList()

  Returns:
    Returns the inList.

### setInList

    public void setInList(List inList)

  Parameters:
    `inList` - The inList to set.

### getRange

    public groovy.lang.Range getRange()

  Returns:
    Returns the range.

### setRange

    public void setRange(groovy.lang.Range range)

  Parameters:
    `range` - The range to set.

### getScale

    public Integer getScale()

  Returns:
    The scale, if defined for this property; null, otherwise

### getSize

    public groovy.lang.Range getSize()

  Returns:
    Returns the size.

### setSize

    public void setSize(groovy.lang.Range size)

  Parameters:
    `size` - The size to set.

### isBlank

    public boolean isBlank()

  Returns:
    Returns the blank.

### setBlank

    public void setBlank(boolean blank)

  Parameters:
    `blank` - The blank to set.

### isEmail

    public boolean isEmail()

  Returns:
    Returns the email.

### setEmail

    public void setEmail(boolean email)

  Parameters:
    `email` - The email to set.

### isCreditCard

    public boolean isCreditCard()

  Returns:
    Returns the creditCard.

### setCreditCard

    public void setCreditCard(boolean creditCard)

  Parameters:
    `creditCard` - The creditCard to set.

### getMatches

    public String getMatches()

  Returns:
    Returns the matches.

### setMatches

    public void setMatches(String regex)

  Parameters:
    `regex` - The matches to set.

### getNotEqual

    public Object getNotEqual()

  Returns:
    Returns the notEqual.

### getMaxSize

    public Integer getMaxSize()

  Returns:
    Returns the maxSize.

### setMaxSize

    public void setMaxSize(Integer maxSize)

  Parameters:
    `maxSize` - The maxSize to set.

### getMinSize

    public Integer getMinSize()

  Returns:
    Returns the minSize.

### setMinSize

    public void setMinSize(Integer minSize)

  Parameters:
    `minSize` - The minLength to set.

### setNotEqual

    public void setNotEqual(Object notEqual)

  Parameters:
    `notEqual` - The notEqual to set.

### isNullable

    public boolean isNullable()

  Returns:
    Returns the nullable.

### setNullable

    public void setNullable(boolean nullable)

  Parameters:
    `nullable` - The nullable to set.

### getPropertyName

    public String getPropertyName()

  Returns:
    Returns the propertyName.

### setPropertyName

    public void setPropertyName(String propertyName)

  Parameters:
    `propertyName` - The propertyName to set.

### isUrl

    public boolean isUrl()

  Returns:
    Returns the url.

### setUrl

    public void setUrl(boolean url)

  Parameters:
    `url` - The url to set.

### isDisplay

    public boolean isDisplay()

  Returns:
    Returns the display.

### setDisplay

    public void setDisplay(boolean display)

  Parameters:
    `display` - The display to set.

### isEditable

    public boolean isEditable()

  Returns:
    Returns the editable.

### setEditable

    public void setEditable(boolean editable)

  Parameters:
    `editable` - The editable to set.

### getOrder

    public int getOrder()

  Returns:
    Returns the order.

### setOrder

    public void setOrder(int order)

  Parameters:
    `order` - The order to set.

### getFormat

    public String getFormat()

### setFormat

    public void setFormat(String format)

### isPassword

    public boolean isPassword()

### setPassword

    public void setPassword(boolean password)

### getAttributes

    public Map getAttributes()

### setAttributes

    public void setAttributes(Map attributes)

### getWidget

    public String getWidget()

### setWidget

    public void setWidget(String widget)

### setMessageSource

    public void setMessageSource(MessageSource source)

  The message source used to evaluate error messages

  Parameters:
    `source` - The MessageSource instance to use to resolve messages

### validate

    public void validate(Object target,
                         Object propertyValue,
                         Errors errors)

  Validate this constrainted property against specified property value

  Parameters:
    `target` - The target object to validate
    `propertyValue` - The value of the property to validate
    `errors` - The Errors instances to report errors to

### supportsContraint

    public boolean supportsContraint(String constraintName)

  Checks with this ConstraintedProperty instance supports applying the specified constraint

  Parameters:
    `constraintName` - The name of the constraint
  Returns:
    True if the constraint is supported

### applyConstraint

    public void applyConstraint(String constraintName,
                                Object constrainingValue)

  Applies a constraint for the specified name and consraint value

  Parameters:
    `constraintName` - The name of the constraint
    `constrainingValue` - The constraining value
  Throws:
    `ConstraintException` - Thrown when the specified constraint is not supported by this ConstrainedProperty. Use `supportsContraint(String constraintName)` to check before calling

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

### addMetaConstraint

    public void addMetaConstraint(String name,
                                  Object value)

  Adds a meta constraints which is a non-validating informational constraint

  Parameters:
    `name` - The name of the constraint
    `value` - The value

### getMetaConstraintValue

    public Object getMetaConstraintValue(String name)

  Obtains the value of the named meta constraint

  Parameters:
    `name` - The name of the constraint
  Returns:
    The value

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