Package org.intermine.pathquery

Class PathConstraintAttribute

java.lang.Object

org.intermine.pathquery.PathConstraint

org.intermine.pathquery.PathConstraintAttribute

public class PathConstraintAttribute
extends PathConstraint

Representation of a normal attribute constraint in the PathQuery

Author:

Matthew Wakeling

Field Summary

Fields

Modifier and Type	Field	Description
static java.util.Set<ConstraintOp>	VALID_OPS	List of valid ops for this type of constraint

Fields inherited from class org.intermine.pathquery.PathConstraint

op, path

Constructor Summary

Constructors

Constructor	Description
PathConstraintAttribute(java.lang.String path, ConstraintOp op, java.lang.String value)	Constructs a new PathConstraintAttribute.

Method Summary

Modifier and Type	Method	Description
java.lang.String	getValue()	Returns the value that the constraint is constraining to.
java.lang.String	toString()

Methods inherited from class org.intermine.pathquery.PathConstraint

getExtraValue, getIds, getOp, getPath, getType, getValue, getValues

Methods inherited from class java.lang.Object

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

Field Detail

VALID_OPS

public static final java.util.Set<ConstraintOp> VALID_OPS

List of valid ops for this type of constraint

Constructor Detail

PathConstraintAttribute

public PathConstraintAttribute(java.lang.String path,
                               ConstraintOp op,
                               java.lang.String value)

Constructs a new PathConstraintAttribute. The path should be a normal path expression with dots separating the parts. Do not use colons to represent outer joins, and do not use square brackets to represent subclass constraints. The path will be checked for format, but can only be verified once inside a PathQuery object by the PathQuery.verifyQuery() method. This object is used to form a constraint on an attribute.

Parameters:

path - the path that the constraint is attached to

op - the type of operation

value - the value to constrain to, as a String - it will be validated later when the query is validated, as we do not know the attribute type at this stage

Throws:

java.lang.NullPointerException - if path, op, or value are null

java.lang.IllegalArgumentException - if the path contains colons or square brackets, or is otherwise in a bad format, or if the op is invalid for this constraint type

Method Detail

getValue

public java.lang.String getValue()

Returns the value that the constraint is constraining to.

Returns:

a String

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object