sparql.base

Class Filter

java.lang.Object

sparql.base.Filter

public class Filter
extends java.lang.Object

Represents the filter clause of SPARQL Query.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Filter.ConditionType

Constructor Summary

Constructors

Constructor and Description
Filter(Filter.ConditionType condition, Node left, Node right, java.lang.String dataType) Constructor which is used when both side of filter are nodes.
Filter(Filter.ConditionType condition, Node left, java.lang.String value, java.lang.String dataType) Constructor which is used when the right side is a constant value.

Method Summary

Methods

Modifier and Type	Method and Description
Filter.ConditionType	getCondition() Get type of filter i.e (GRT, LST, GEQ, LEQ, LIKE, Timesemantic_Between).
java.lang.String	getDataType() Get the data type of filter value i.e(xsd:date, int, leave blank for string).
Filter	getLast() Get the last filter object.
Node	getLeft() Get left side filter node.
Filter	getNext() Get the next filter object.
java.lang.String	getNextCondition() Get the relation between the current filter and next one i.e (OR, AND).
Node	getRight() Get the right side filter node.
java.lang.String	getValue() Get the filter clause value.
void	setNext(java.lang.String nextCondition, Filter next) Set next filter object and relation condition to this object.

Methods inherited from class java.lang.Object

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

Constructor Detail

Filter

public Filter(Filter.ConditionType condition,
      Node left,
      java.lang.String value,
      java.lang.String dataType)
       throws java.sql.SQLException

Constructor which is used when the right side is a constant value.

Parameters:

condition - Type of filter.

left - The left side node.

value - Value of filter.

dataType - Data type of value i.e(xsd:date.).

Throws:

java.sql.SQLException

Filter

public Filter(Filter.ConditionType condition,
      Node left,
      Node right,
      java.lang.String dataType)

Constructor which is used when both side of filter are nodes.

Parameters:

condition - Type of filter.

left - The left side node.

right - The right side node.

dataType - Data type of value of right node.

Method Detail

getCondition

public Filter.ConditionType getCondition()

Get type of filter i.e (GRT, LST, GEQ, LEQ, LIKE, Timesemantic_Between).

Returns:

Type of Filter.

getValue

public java.lang.String getValue()

Get the filter clause value.

Returns:

The value that result must be filtered based on that.

getDataType

public java.lang.String getDataType()

Get the data type of filter value i.e(xsd:date, int, leave blank for string).

Returns:

The data type i.e(xsd:date, int, leave blank for string).

getNextCondition

public java.lang.String getNextCondition()

Get the relation between the current filter and next one i.e (OR, AND).

Returns:

A string represent the relation between the current filter and next one.

getLeft

public Node getLeft()

Get left side filter node.

Returns:

A node object of the left filter side.

getRight

public Node getRight()

Get the right side filter node. (Null if the right side is constant value)

Returns:

A node object of the right filter side.(Null if the right side is constant value.)

getNext

public Filter getNext()

Get the next filter object. (Null if there is no other filter).

Returns:

A filter object that links to this object. (Null if there is no other filter.)

setNext

public void setNext(java.lang.String nextCondition,
           Filter next)

Set next filter object and relation condition to this object.

Parameters:

nextCondition - String that represent the link condition i.e (OR, AND)

next - Filter object that link to this object.

getLast

public Filter getLast()

Get the last filter object.

Returns:

The last filter object.