edu.ucsb.adl.middleware
Class Query.BooleanConstraint

java.lang.Object
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  +--edu.ucsb.adl.middleware.Query.Constraint
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        +--edu.ucsb.adl.middleware.Query.BooleanConstraint

Enclosing class:

Query

public static final class Query.BooleanConstraint

extends Query.Constraint

A boolean combination of two or more subconstraints.

Field Summary

static int	AND Identifies the AND operator.
static int	AND_NOT Identifies the AND NOT operator.
static int	OR Identifies the OR operator.

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

m_parent

Constructor Summary

Query.BooleanConstraint(int operator, Query.Constraint[] operands)
Constructs a BooleanConstraint.

Method Summary

Query.Constraint[]	getOperands() Returns the subconstraints.
int	getOperator() Returns the boolean operator.
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.Constraint

getParent

Methods inherited from class java.lang.Object

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

Field Detail

AND

public static final int AND

Identifies the AND operator.

See Also:

Constant Field Values

OR

public static final int OR

Identifies the OR operator.

See Also:

Constant Field Values

AND_NOT

public static final int AND_NOT

Identifies the AND NOT operator.

See Also:

Constant Field Values

Constructor Detail

Query.BooleanConstraint

public Query.BooleanConstraint(int operator,
                               Query.Constraint[] operands)

Constructs a BooleanConstraint.

Parameters:

operator - The boolean operator.

operands - The subconstraints, which should not be modified after calling this method.

Throws:

java.lang.IllegalArgumentException - If operator is invalid, or if operator is AND_NOT and operands does not have exactly two elements, or if otherwise operands has fewer than two elements, or if any element of operands already has a parent constraint.

java.lang.NullPointerException - If operands, or any element of operands, is null.

Method Detail

getOperator

public int getOperator()

Returns the boolean operator.

Returns:

The operator.

getOperands

public Query.Constraint[] getOperands()

Returns the subconstraints.

Returns:

The subconstraints, which should not be modified.

toHTML

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

Converts the constraint to HTML.

Specified by:

toHTML in class Query.Constraint

Parameters:

mapServerURL - The template URL of a map server or null.

Returns:

An HTML fragment consisting of one or more <li> elements.

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.