javax.slee.profile.query

Class Equals

java.lang.Object

javax.slee.profile.query.QueryExpression

javax.slee.profile.query.SimpleQueryExpression

javax.slee.profile.query.Equals

All Implemented Interfaces:

Serializable

public final class Equals
extends SimpleQueryExpression

The Equals class represents a dynamic query expression that checks for equality between a profile attribute and a specified value.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Equals(String attrName, Object attrValue) Create an Equals query expression.
Equals(String attrName, String attrValue, QueryCollator collator) Create an Equals query expression.

Method Summary

Methods

Modifier and Type	Method and Description
protected String	getRelation() Get the symbol or other name for this expression relation to be used in the toString output.

Methods inherited from class javax.slee.profile.query.SimpleQueryExpression

getAttributeName, getAttributeValue, getCollator, toString

Methods inherited from class javax.slee.profile.query.QueryExpression

toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Equals

public Equals(String attrName,
      Object attrValue)
       throws NullPointerException

Create an Equals query expression. A profile will match the expression criteria if the value of the attrName attribute is equal to attrValue, as determined by Object.equals(Object).

Parameters:

attrName - the name of the profile attribute to compare.

attrValue - the value of the attribute to compare with.

Throws:

NullPointerException - if either argument is null.

Equals

public Equals(String attrName,
      String attrValue,
      QueryCollator collator)
       throws NullPointerException

Create an Equals query expression. A profile will match the expression criteria if the value of the attrName attribute is equal to attrValue, as determined by Collator.equals(String, String), where the collator is obtained from the specified QueryCollator.

Parameters:

attrName - the name of the profile attribute to compare.

attrValue - the value of the attribute to compare with.

collator - the collator to use for the comparison. May be null.

Throws:

NullPointerException - if either attrName or attrValue is null.

Method Detail

getRelation

protected String getRelation()

Description copied from class: SimpleQueryExpression

Get the symbol or other name for this expression relation to be used in the toString output.

Specified by:

getRelation in class SimpleQueryExpression

Returns:

the symbol or other name for this expression relation.