oracle.jbo.rules
Class JboPrecisionScaleValidator

java.lang.Object
  oracle.jbo.rules.AbstractValidator
      oracle.jbo.rules.JboAbstractValidator
          oracle.jbo.rules.JboPrecisionScaleValidator

All Implemented Interfaces:

JboValidatorHints, JboValidatorInterface, ValidatorConstants, VariableManagerOwner, VariableManagerOwnerBase

public class JboPrecisionScaleValidator
extends JboAbstractValidator
implements JboValidatorInterface

Implements precision and scale validation for numeric attributes and length validation for string and character attributes. The framework applies this validator to Entity Object attributes whose definitions inlcude XML metadata precision or scale values.

This validator is invoked by an Entity Objects's validate() method when an attribute with defined precision or scale is modified.

Field Summary

static int

DEFAULT_SCALE

Fields inherited from class oracle.jbo.rules.JboAbstractValidator

CLASS_INSTANCE, mValidatingAttr

Fields inherited from class oracle.jbo.rules.AbstractValidator

m_children, m_props, mbInverse, mDescription, mErrorMessageClass, mMsgExpr, mMsgId, mMsgIds, mResourceBundleId, mTriggeringAttributeNames, mTriggeringAttributes, mValidatingAttrName

Fields inherited from interface oracle.jbo.rules.ValidatorConstants

ATTR, ATTR_STR, EO, EO_STR, EQUALTO, EXPR, EXPR_STR, GREATERTHAN, GREATERTHANEQUALTO, JBO, JBO_STR, LESSTHAN, LESSTHANEQUALTO, LITERAL, LITERAL_STR, MANDATORY_STR, mCompOperTypeVals, mRhsTypeVals, mSeverityVals, PNAME_CompareLength, PNAME_CompareType, PNAME_CompareValue, PNAME_DataType, PNAME_ErrorMessageExpressions, PNAME_ErrorMessageId, PNAME_ErrorMessageIds, PNAME_Exposed, PNAME_ForPersonalization, PNAME_Inverse, PNAME_Name, PNAME_OnAttribute, PNAME_OnAttributes, PNAME_OnCondition, PNAME_OperandType, PNAME_Severity, PNAME_Subtype, PNAME_TransactionLevel, PNAME_ValidationBeanClass, PNAME_ValName, PNAME_xmlns, PRECISION_SCALE_STR, SEVERITY_ERROR, SEVERITY_RECOVERABLE_ERROR, SEVERITY_VETOABLE_WARNING, SEVERITY_WARNING, SQL, SQL_STR, VALIDATION_XMLNS, VALIDATOR_MSG_ID_PREFIX, VO, VO_STR, VO_USAGE, VO_USAGE_STR

Constructor Summary

JboPrecisionScaleValidator()
Creates a default validator.

Method Summary

java.lang.String	getDefXMLElementTag()
java.lang.String	getDescription() Gets the description of this validator.
java.lang.String	getErrorMsgId()
int	getPrecision() Gets the precision value.
int	getScale() Gets the scale value.
static JboPrecisionScaleValidator	getSingleton()
protected void	initialize(JboValidatorContext evObj)
void	setDescription(java.lang.String description) Sets the description of this validator.
void	setPrecision(int prec) Sets the precision value.
void	setScale(int scale) Sets the scale value.
java.lang.String	toString() Internal: Applications should not use this method.
boolean	validateValue(java.lang.Object value) Validates a value.
static boolean	validateValue(java.lang.Object value, int prec, int scale) Tests the Entity Object against this validator's precision and scale values.
static boolean	validateValueDouble(java.lang.String valStr, double value, int prec, int scale)
static boolean	validateValueLong(java.lang.String valStr, long value, int prec, int scale)
static boolean	validateValueObject(java.lang.Object value, int prec, int scale)
boolean	validateValueWithContext(JboValidatorContext evObj, java.lang.Object value) Validates an Entity Object by invoking validateValue().

Methods inherited from class oracle.jbo.rules.JboAbstractValidator

applyValidatorPersonalization, clone, closeObject, endInit, getDefXMLNameSpace, getFullName, getImageLoc, getName, getTriggeringAttributeDefs, getTriggeringAttributeNames, getValidatingAttributeName, getValueToValidate, getXMLElementTag, isDirty, isForPersonalization, isNew, isReadOnly, raiseException, resolve, setDirty, setForPersonalization, setInitialized, setName, setNew, setNewValue, setTriggeringAttributeNames, setValidatingAttribute, setValidatingAttribute, validate, validateMany

Methods inherited from class oracle.jbo.rules.AbstractValidator

beginInit, convertToJava, createException, createExprValueSupplier, ensureVariableManager, getErrorMessageClass, getErrorMsgExpressions, getInverse, getMessageBundleClass, getOnCondition, getOperandType, getOwner, getProps, getResourceBundleDef, getResourceBundleId, getSeverity, getValidatorSubType, getVariableManager, hasCustomErrorMsgId, hasValidationCondition, hasVariables, initErrMsgParms, initFromXml, initTriggeringAttributeDefs, initValidatorProperties, isMovedToAttrLevel, isTransactionLevel, isTransactionLevel, isValidatable, parseSeverityStr, prepareException, raiseException, readStringArrayList, readUserObjectTrim, setDefaultDescription, setErrorMessageClass, setErrorMsgExpressions, setErrorMsgId, setErrorMsgIds, setInverse, setOnCondition, setOperandType, setProp, setResourceBundleDef, setResourceBundleId, setSeverity, setTransactionLevel, setValidatingAttributeName

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface oracle.jbo.rules.JboValidatorInterface

validate

Methods inherited from interface oracle.jbo.rules.JboValidatorHints

initValidatorProperties, isTransactionLevel

Field Detail

DEFAULT_SCALE

public static final int DEFAULT_SCALE

See Also:

Constant Field Values

Constructor Detail

JboPrecisionScaleValidator

public JboPrecisionScaleValidator()

Creates a default validator.

Use setPrecision and setScale to configure the validatior.

Method Detail

getSingleton

public static JboPrecisionScaleValidator getSingleton()

initialize

protected void initialize(JboValidatorContext evObj)

Overrides:

initialize in class JboAbstractValidator

validateValueWithContext

public boolean validateValueWithContext(JboValidatorContext evObj,
                                        java.lang.Object value)

Validates an Entity Object by invoking validateValue().

Overrides:

validateValueWithContext in class JboAbstractValidator

Parameters:

evObj - an event object indicating the Entity Object to be validated.

Throws:

AttrSetValException - if validation fails.

validateValue

public boolean validateValue(java.lang.Object value)

Description copied from class: JboAbstractValidator

Validates a value.

Subclasses must implement this method.

Specified by:

validateValue in class JboAbstractValidator

Parameters:

value - the object to be validated.

Returns:

true if the object is valid.

validateValueDouble

public static boolean validateValueDouble(java.lang.String valStr,
                                          double value,
                                          int prec,
                                          int scale)

validateValueLong

public static boolean validateValueLong(java.lang.String valStr,
                                        long value,
                                        int prec,
                                        int scale)

validateValueObject

public static boolean validateValueObject(java.lang.Object value,
                                          int prec,
                                          int scale)

validateValue

public static boolean validateValue(java.lang.Object value,
                                    int prec,
                                    int scale)

Tests the Entity Object against this validator's precision and scale values.

The precision value is the maximum allowed number of digits in a number, or the number of characters in a string. The scale value, when less than zero, is the minimum number of digits following the decimal point, and when greater than zero, is the minimum number of digits preceeding the decimal point.

Parameters:

value - the Entity Object to be tested.

Returns:

true if value is valid.

getPrecision

public int getPrecision()

Gets the precision value. For strings, "precision" refers to length.

Returns:

the precision value.

getScale

public int getScale()

Gets the scale value. If scale validation is not to be performed this value is -127.

setPrecision

public void setPrecision(int prec)

Sets the precision value. For strings, "precision" refers to length.

Parameters:

prec - the new precision value.

setScale

public void setScale(int scale)

Sets the scale value. If scale validation is not to be performed this value should be -127.

Parameters:

scale - the new scale value.

toString

public java.lang.String toString()

Internal: Applications should not use this method.

Overrides:

toString in class java.lang.Object

getDescription

public java.lang.String getDescription()

Gets the description of this validator.

Specified by:

getDescription in interface JboValidatorInterface

Overrides:

getDescription in class AbstractValidator

Returns:

a documentation string.

getErrorMsgId

public java.lang.String getErrorMsgId()

Overrides:

getErrorMsgId in class JboAbstractValidator

setDescription

public void setDescription(java.lang.String description)

Sets the description of this validator.

Specified by:

setDescription in interface JboValidatorInterface

Overrides:

setDescription in class AbstractValidator

Parameters:

description - a documentation string.

getDefXMLElementTag

public java.lang.String getDefXMLElementTag()

Specified by:

getDefXMLElementTag in class JboAbstractValidator