psdi.mbo

Class QbeFilter

java.lang.Object

psdi.mbo.QbeFilter

public class QbeFilter
extends java.lang.Object

This helper class collects Qbe expressions per attribute for a Mbo and its related Mbos. The filter can then be used to see if a Mbo satisfies the filter or not.

Author:

John Neville

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	QbeFilter.AttributeExpressions Note that this class is very similar to the inner class with the same name in MboQbe

Constructor Summary

Constructors

Constructor and Description
QbeFilter(MboSet set)
QbeFilter(MboSetInfo ms, boolean processML, UserInfo userInfo) Construct the Query, attached to a certain MboSet with default Locale
QbeFilter(MboSetInfo ms, java.util.Locale l, java.util.TimeZone tz, boolean ml, UserInfo userInfo) Construct the Query, attached to a certain MboSet with specified Locale
QbeFilter(MboSetInfo ms, UserInfo userInfo) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String[][]	getQbe() Return all the QBE expressions defined.
java.lang.String	getQbe(java.lang.String attrName) Gets the Qbe filter for an attribute.
boolean	hasQbe() Is any Qbe Filter defined?
void	ignoreQbeExactMatchSet(boolean flag) Why is this here? Copied from MboQbe.
boolean	isIgnoreQbeExactMatchSet()
boolean	isUsingQbeExactMatch() Return the state of the useExactMatch
void	resetQbe() Reset sets up the filter for use.
boolean	satisfy(MboRemote mbo) Does this Mbo satisfy the defined filter?
void	setOperatorOr() Set the operator to OR
void	setQbe(java.lang.String attrName, java.lang.String expr) Sets the Qbe filter for an attribute.
void	setQbeCaseSensitive(boolean state) Determines case sensitivity of the filter.
void	setQbeExactMatch(boolean state) Determines whether to use equals or like as the default comparision.

Methods inherited from class java.lang.Object

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

Constructor Detail

QbeFilter

public QbeFilter(MboSet set)
          throws java.rmi.RemoteException

Throws:

java.rmi.RemoteException

QbeFilter

public QbeFilter(MboSetInfo ms,
         UserInfo userInfo)

Constructor

QbeFilter

public QbeFilter(MboSetInfo ms,
         boolean processML,
         UserInfo userInfo)

Construct the Query, attached to a certain MboSet with default Locale

QbeFilter

public QbeFilter(MboSetInfo ms,
         java.util.Locale l,
         java.util.TimeZone tz,
         boolean ml,
         UserInfo userInfo)

Construct the Query, attached to a certain MboSet with specified Locale

Method Detail

resetQbe

public void resetQbe()

Reset sets up the filter for use.

setQbe

public void setQbe(java.lang.String attrName,
          java.lang.String expr)
            throws MXException

Sets the Qbe filter for an attribute. This can be an attribute in the parent MboSet, or in a MboSet related to Mbos in the parent MboSet, specified using the usual dot notation. The expression given replaces any previously set expression. If the expression given is null or the empty string, the filter for the attribute is removed.

Parameters:

attrName - The name of the attribute

expr - The expression for the filter

Throws:

MXException

getQbe

public java.lang.String getQbe(java.lang.String attrName)
                        throws MXException

Gets the Qbe filter for an attribute.

Parameters:

attrName - The name of the attribute

Returns:

The filter expression or the empty string if none.

Throws:

MXException

hasQbe

public boolean hasQbe()

Is any Qbe Filter defined?

Returns:

true if any Qbe filter is defined.

satisfy

public boolean satisfy(MboRemote mbo)
                throws MXException,
                       java.rmi.RemoteException

Does this Mbo satisfy the defined filter?

Parameters:

mbo - The Mbo

Returns:

true if the Mbo satisfies the filter.

Throws:

MXException

java.rmi.RemoteException

setQbeExactMatch

public void setQbeExactMatch(boolean state)

Determines whether to use equals or like as the default comparision.

setQbeCaseSensitive

public void setQbeCaseSensitive(boolean state)

Determines case sensitivity of the filter. Only applies to String attributes.

setOperatorOr

public void setOperatorOr()

Set the operator to OR

isUsingQbeExactMatch

public boolean isUsingQbeExactMatch()

Return the state of the useExactMatch

getQbe

public java.lang.String[][] getQbe()
                            throws MXException

Return all the QBE expressions defined. If none are defined, return null ;

Throws:

MXException

ignoreQbeExactMatchSet

public void ignoreQbeExactMatchSet(boolean flag)

Why is this here? Copied from MboQbe.

Parameters:

flag - What value to give the ignore-the-Qbe-Exact-Match-flag flag.

isIgnoreQbeExactMatchSet

public boolean isIgnoreQbeExactMatchSet()