edu.ucsb.adl.middleware
Class Query.HierarchicalConstraint

java.lang.Object
  |
  +--edu.ucsb.adl.middleware.Query.Constraint
        |
        +--edu.ucsb.adl.middleware.Query.SimpleConstraint
              |
              +--edu.ucsb.adl.middleware.Query.HierarchicalConstraint

Enclosing class:

Query

public static final class Query.HierarchicalConstraint

extends Query.SimpleConstraint

A hierarchical categorization constraint.

Field Summary

Fields inherited from class edu.ucsb.adl.middleware.Query.SimpleConstraint

m_bucket, m_field, m_operator

Fields inherited from class edu.ucsb.adl.middleware.Query.Constraint

m_parent

Constructor Summary

Query.HierarchicalConstraint(java.lang.String bucket, Query.Field field, java.lang.String operator, java.lang.String term, java.lang.String vocabulary)
Constructs a HierarchicalConstraint.

Method Summary

java.lang.String	getTerm() Returns the target term.
java.lang.String	getVocabulary() Returns the target term's vocabulary.
java.lang.String	toHTML(java.lang.String mapServerURL) Converts the constraint to HTML.
java.lang.String	toXML(int level) Converts the constraint to XML.

Methods inherited from class edu.ucsb.adl.middleware.Query.SimpleConstraint

commonFieldsToXML, getBucket, getField, getOperator

Methods inherited from class edu.ucsb.adl.middleware.Query.Constraint

getParent

Methods inherited from class java.lang.Object

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

Constructor Detail

Query.HierarchicalConstraint

public Query.HierarchicalConstraint(java.lang.String bucket,
                                    Query.Field field,
                                    java.lang.String operator,
                                    java.lang.String term,
                                    java.lang.String vocabulary)

Constructs a HierarchicalConstraint.

Parameters:

bucket - The bucket to constrain, e.g., "types".

field - The field to constrain, or null.

operator - The constraint operator, e.g., "is-a".

term - The target term, e.g., "aerial photographs".

vocabulary - The source of the term, e.g., "ADL Object Type Thesaurus".

Throws:

java.lang.NullPointerException - If any of the arguments other than field is null.

Method Detail

getTerm

public java.lang.String getTerm()

Returns the target term.

Returns:

The target term.

getVocabulary

public java.lang.String getVocabulary()

Returns the target term's vocabulary.

Returns:

The vocabulary.

toHTML

public java.lang.String toHTML(java.lang.String mapServerURL)

Converts the constraint to HTML.

Specified by:

toHTML in class Query.Constraint

Parameters:

mapServerURL - Unused.

Returns:

An HTML fragment consisting of a single <li> element.

toXML

public java.lang.String toXML(int level)

Converts the constraint to XML.

Specified by:

toXML in class Query.Constraint

Parameters:

level - The current indentation level; should be nonnegative.

Returns:

An XML fragment.