Uses of Interface
com.hp.hpl.jena.graph.query.Expression

Packages that use Expression

com.hp.hpl.jena.graph.query

Defines the graph-level Query classes, allowing multi-pattern query over arbitrary graphs.

Uses of Expression in com.hp.hpl.jena.graph.query

Classes in com.hp.hpl.jena.graph.query that implement Expression

static class	Expression.Application An abstract base class for apply nodes; subclasses implement getFun(), argCount(), and getArg().
static class	Expression.Base An abstract base class for Expressions; over-ride as appropriate.
static class	Expression.BoolConstant Base class used to implement TRUE and FALSE.
static class	Expression.Literal An abstract base class for literal nodes; subclasses implement getValue().
static class	Expression.Variable An abstract base class for variable nodes; subclasses implement getName().

Fields in com.hp.hpl.jena.graph.query declared as Expression

static Expression	Expression.TRUE An Expression which always evaluates to true.
static Expression	Expression.FALSE An Expression which always evaluates to false.

Methods in com.hp.hpl.jena.graph.query that return Expression

Expression	Expression.getArg(int i) If this Expression is an application, and 0 <= i < argCount(), answer the ith argument.
Expression	Expression.Base.getArg(int i)
abstract Expression	Expression.Application.getArg(int i)

Methods in com.hp.hpl.jena.graph.query with parameters of type Expression

Query	Query.addConstraint(Expression e)
ExpressionSet	ExpressionSet.add(Expression e) Answer this expressionset after e has been anded into it.
static java.util.Set	Expression.Util.variablesOf(Expression e) Answer a set containing exactly the names of variables within e.
static java.util.Set	Expression.Util.addVariablesOf(java.util.Set s, Expression e) Add all the variables of e to s, and answer s.
static Valuator	Expression.Util.prepare(Expression e, VariableIndexes vi) Answer a Valuator v such that v.evalBool(IndexValues iv) will return e.evalBool( vv ) where vv.get(name) = iv.get(vi.indexOf(name))