com.objectwave.persist.constraints
Class ConstraintSubSelect

java.lang.Object
  |
  +--com.objectwave.persist.constraints.Constraint
        |
        +--com.objectwave.persist.constraints.ConstraintSubSelect

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

public class ConstraintSubSelect

extends Constraint

Define & manage the "any of" and "not any of" constraints.

Version:

1.1

Author:

Steven Sinclair

See Also:

Serialized Form

Field Summary

Fields inherited from class com.objectwave.persist.constraints.Constraint

columnName, defaultObjectFormatter, objectFormatter

Constructor Summary

ConstraintSubSelect()

Method Summary

boolean	checkConstraint(java.lang.Object dataField, java.lang.Object queryField) Check if the dataField is in the list of previously defined fields.
java.lang.String	constructQueryString() Create as string representing an anOf constraint.
void	fromString(java.lang.String str) Parse the string.
static java.util.Vector	getFields()
protected java.lang.String	getQueryStatement()
java.util.Enumeration	getStaticList() Gets the StaticList attribute of the Constraint object
java.lang.String	getSubSelectField()
SQLQuery	getSubSelectQuery()
java.lang.String	getType() This is a unique, readable string identifying the constraint type (ex, anyof, null)
void	setSubSelectField(java.lang.String subSelectField)
void	setSubSelectQuery(SQLQuery subSelectQuery)
void	staticListInsert(java.lang.String field) Each type of constraint will have a specific set of fields associated with it.
java.lang.String	stringify() Stringify the object.

Methods inherited from class com.objectwave.persist.constraints.Constraint

checkConstraint, classOfField, clone, equals, findField, formatString, getColumnName, getField, getNot, getObjectFormatter, getPersistence, isComparisonValueFromPersistentObject, isUsingColumnName, setColumnName, setField, setNot, setObjectFormatter, setPersistence, sqlString, stringToObject, toString

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ConstraintSubSelect

public ConstraintSubSelect()

Method Detail

checkConstraint

public boolean checkConstraint(java.lang.Object dataField,
                               java.lang.Object queryField)

Check if the dataField is in the list of previously defined fields.

Specified by:

checkConstraint in class Constraint

Parameters:

dataField - The data from an object in the 'pool'.

queryField - The data from the Query object. Not used in an anyOf comparison.

Returns:

boolean The result of the constraint comparison

constructQueryString

public java.lang.String constructQueryString()

Create as string representing an anOf constraint.

Specified by:

constructQueryString in class Constraint

Returns:

String The in or not in portion of a where clause.

getQueryStatement

protected java.lang.String getQueryStatement()

Returns:

true if we are to send the buffer on, false if there were no values.

fromString

public void fromString(java.lang.String str)
                throws java.text.ParseException

Description copied from class: Constraint

Parse the string. Probably a string encoded via the toString() call, this method attempts to build the object's state from the information in string "str".

Specified by:

fromString in class Constraint

Parameters:

str -

Throws:

java.text.ParseException

getFields

public static java.util.Vector getFields()

getStaticList

public java.util.Enumeration getStaticList()

Description copied from class: Constraint

Gets the StaticList attribute of the Constraint object

Specified by:

getStaticList in class Constraint

Returns:

The StaticList value

getType

public java.lang.String getType()

Description copied from class: Constraint

This is a unique, readable string identifying the constraint type (ex, anyof, null)

Specified by:

getType in class Constraint

Returns:

The Type value

getSubSelectQuery

public SQLQuery getSubSelectQuery()

getSubSelectField

public java.lang.String getSubSelectField()

setSubSelectQuery

public void setSubSelectQuery(SQLQuery subSelectQuery)

setSubSelectField

public void setSubSelectField(java.lang.String subSelectField)

staticListInsert

public void staticListInsert(java.lang.String field)

Description copied from class: Constraint

Each type of constraint will have a specific set of fields associated with it. This is to allow the user to select them via Gui.

Specified by:

staticListInsert in class Constraint

Parameters:

field -

stringify

public java.lang.String stringify()

Description copied from class: Constraint

Stringify the object. Object serialization may be a better approach. Oh well. Encode the class's type and state in a readable string.

Specified by:

stringify in class Constraint

Returns:

a readable string revealing the contents