com.codestreet.messageforge
Class RFldConstraintStringLength

java.lang.Object
  com.codestreet.messageforge.RFldConstraintString
      com.codestreet.messageforge.RFldConstraintStringLength

All Implemented Interfaces:

RFldConstraint

public class RFldConstraintStringLength

extends RFldConstraintString

Class to represent a minumum/maximum length constraint on a String message field.

Author:

Jawaid Hakim.

Field Summary

protected int	maxLen_ Maximum length allowed.
protected boolean	maxValSet_
protected int	minLen_ Minimum length allowed.
protected boolean	minValSet_
static int	NOTSET Constraint not set.

Method Summary

java.lang.String	errDesc(java.lang.String fldName) Get error description.
boolean	isValid(RFld fld) Check if a message field satisfies the constraint.
boolean	isValid(java.lang.String val) Check if a value satisfies the constraint.
static RFldConstraintStringLength	valueOf(java.lang.String key, java.lang.String fldName, boolean minSet, java.lang.String min, boolean maxSet, java.lang.String max) Factory.

Methods inherited from class com.codestreet.messageforge.RFldConstraintString

validate, validate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NOTSET

public static final int NOTSET

Constraint not set.

See Also:

Constant Field Values

minLen_

protected int minLen_

Minimum length allowed.

maxLen_

protected int maxLen_

Maximum length allowed.

minValSet_

protected boolean minValSet_

maxValSet_

protected boolean maxValSet_

Method Detail

valueOf

public static RFldConstraintStringLength valueOf(java.lang.String key,
                                                 java.lang.String fldName,
                                                 boolean minSet,
                                                 java.lang.String min,
                                                 boolean maxSet,
                                                 java.lang.String max)
                                          throws FieldValidationException

Factory. Returns a RFldConstraintStringLength instance based on the input parameters.

Parameters:

key - Key to use for caching constraint.

fldName - Name of field to which this constraint is bound.

minSet - Flag to indicate whether the minimum value is set.

min - Minimum length allowed. If this is null then no constraint is placed on the minimum length.

max - Maximum length allowed. If this is null then no constraint is placed on the maximum length.

Throws:

FieldValidationException

See Also:

NOTSET

errDesc

public java.lang.String errDesc(java.lang.String fldName)

Get error description.

Parameters:

fldName - Field name.

Returns:

Error description.

isValid

public boolean isValid(RFld fld)

Check if a message field satisfies the constraint.

Specified by:

isValid in interface RFldConstraint

Overrides:

isValid in class RFldConstraintString

Parameters:

fld - Field to validate.

Returns:

true if the field satisfied the constraint. Otherwise, false is returned.

isValid

public boolean isValid(java.lang.String val)

Check if a value satisfies the constraint.

Specified by:

isValid in class RFldConstraintString

Parameters:

val - Value to validate.

Returns:

true if the data satisfies the constraint. Otherwise, false is returned.