javax.slee.profile.query
Class SimpleQueryExpression

java.lang.Object
  javax.slee.profile.query.QueryExpression
      javax.slee.profile.query.SimpleQueryExpression

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

Equals, HasPrefix, LongestPrefixMatch, NotEquals, OrderedQueryExpression

public abstract class SimpleQueryExpression
extends QueryExpression

The SimpleQueryExpression class is the base class for all dynamic query expressions that perform binary operator comparisons on profile attribute values.

See Also:

Serialized Form

Constructor Summary

protected

SimpleQueryExpression(java.lang.String attrName, java.lang.Object attrValue, QueryCollator collator) Create a SimpleQueryExpression for the attribute with the specified name.

Method Summary

java.lang.String	getAttributeName() Get the name of the profile attribute used by this query expression.
java.lang.Object	getAttributeValue() Get the value the profile attribute will be compared to.
QueryCollator	getCollator() Get the query collator used by this query expression.
protected abstract java.lang.String	getRelation() Get the symbol or other name for this expression relation to be used in the toString output.
protected void	toString(java.lang.StringBuffer buf) Get a string representation for this query expression.

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

SimpleQueryExpression

protected SimpleQueryExpression(java.lang.String attrName,
                                java.lang.Object attrValue,
                                QueryCollator collator)

Create a SimpleQueryExpression for the attribute with the specified name. An optional query collator may also be specified if the type of the attribute being compared is java.lang.String.

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 expression, or null if no collator is specified.

Throws:

java.lang.NullPointerException - if either attrName or attrValue is null.

Method Detail

getAttributeName

public final java.lang.String getAttributeName()

Get the name of the profile attribute used by this query expression.

Returns:

the name of the profile attribute.

getAttributeValue

public final java.lang.Object getAttributeValue()

Get the value the profile attribute will be compared to.

Returns:

the value the profile attribute will be compared to.

getCollator

public final QueryCollator getCollator()

Get the query collator used by this query expression.

Returns:

the query collator, or null if one has not been specified for this query expression.

toString

protected final void toString(java.lang.StringBuffer buf)

Description copied from class: QueryExpression

Get a string representation for this query expression.

Specified by:

toString in class QueryExpression

Parameters:

buf - a string buffer the string representation should be appended to.

getRelation

protected abstract java.lang.String getRelation()

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

Returns:

the symbol or other name for this expression relation.