org.da.sparqlhelper.sparql.model.expressions

Class AbstractExpression

java.lang.Object

org.da.sparqlhelper.sparql.model.expressions.AbstractExpression

All Implemented Interfaces:

Expression, ExpressionOperators

Direct Known Subclasses:

ArithmeticExpression, ComparisonExpression, FunctionExpression, IRIExpression, LiteralExpression, QualifiedNameExpression, VariableExpression

public abstract class AbstractExpression
extends java.lang.Object
implements Expression

Represent an abstract expression appearing in a BIND, FILTER, or COALESCE construct.

Field Summary

Fields

Modifier and Type	Field and Description
protected short	operator The operator.

Fields inherited from interface org.da.sparqlhelper.sparql.model.expressions.ExpressionOperators

AND, DEFAULT, DIVIDE, MINUS, MULTIPLY, NOT, OR, PLUS

Constructor Summary

Constructors

Constructor and Description
AbstractExpression()

Method Summary

Modifier and Type	Method and Description
short	getOperator() Return the operator used to concatenate this expression to the previous one.
void	setOperator(short operator) Set the operator to use for the expression.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.da.sparqlhelper.sparql.model.expressions.Expression

appendContent, checkValidity, create, getContent, getOperatorAsString, getOperatorAsString, getOutputVariables, getVariables, isSimpleExpression

Field Detail

operator

protected short operator

The operator.

See Also:

ExpressionOperators

Constructor Detail

AbstractExpression

public AbstractExpression()

Method Detail

setOperator

public void setOperator(short operator)

Set the operator to use for the expression. It will be used to combine this expression with the previous one. Note that if the expression is the first one in the expressions list, the operator has no effect.

Specified by:

setOperator in interface Expression

Parameters:

operator - the operator

getOperator

public short getOperator()

Return the operator used to concatenate this expression to the previous one.

Specified by:

getOperator in interface Expression

Returns:

the operator

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object