org.da.sparqlhelper.sparql.model

Class SelectForm

java.lang.Object

org.da.sparqlhelper.sparql.model.AbstractSparqFormExpression

org.da.sparqlhelper.sparql.model.SelectForm

All Implemented Interfaces:

ISparqlFormExpression

public class SelectForm
extends AbstractSparqFormExpression

Represents a SELECT form.

Since:

0.1

Field Summary

Fields inherited from class org.da.sparqlhelper.sparql.model.AbstractSparqFormExpression

parentRequest

Fields inherited from interface org.da.sparqlhelper.sparql.model.ISparqlFormExpression

TYPE_DELETE, TYPE_INSERT, TYPE_INSERT_DATA, TYPE_SELECT, TYPE_WHERE

Constructor Summary

Constructors

Constructor and Description
SelectForm(ISparqlRequestGroup parentRequest)

Method Summary

Modifier and Type	Method and Description
boolean	addSelect(Expression expr, java.lang.String asVar) Add an expression to use for the SELECT part of the Sparql request.
boolean	addSelect(SelectExpression selectExpr) Add an expression to use for the SELECT part of the Sparql request.
boolean	addSelect(java.lang.String... vars) Add several variables to use for the SELECT part of the Sparql request.
boolean	addSelect(java.lang.String var) Add a variable to use for the SELECT part of the Sparql request.
Variable	addSelectVariable(SelectExpression selectExpr) Add a variable for a select expression.
java.lang.String	formExpressionTypeAsString()
char	getFormExpressionType()
java.util.List<SelectItem>	getSelectList()
java.util.Map<java.lang.String,SelectItem>	getSelectMap() Return the map of SELECT items.
boolean	hasSelectForm()
boolean	isEmptySelect()
boolean	isSelect(java.lang.String var) Return true if a variable is in the SELECT list of variables.
boolean	isSelectAll() Return true if SELECT * is set.
boolean	isSelectDistinct() Return true if the SELECT expression should be SELECT DISTINCT.
void	selectDistinct(boolean selectDistinct) Set if the SELECT expression should be SELECT DISTINCT.
void	setHasSelectForm(boolean hasSelectForm)
void	setSelect(java.lang.String... vars) Set the variables to use for the SELECT part of the Sparql request.
boolean	setSelectAll() Set "*" for SELECT all variables.

Methods inherited from class org.da.sparqlhelper.sparql.model.AbstractSparqFormExpression

getSparqlRequest

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectForm

public SelectForm(ISparqlRequestGroup parentRequest)

Method Detail

getFormExpressionType

public char getFormExpressionType()

formExpressionTypeAsString

public java.lang.String formExpressionTypeAsString()

setHasSelectForm

public void setHasSelectForm(boolean hasSelectForm)

hasSelectForm

public boolean hasSelectForm()

isSelectAll

public boolean isSelectAll()

Return true if SELECT * is set.

Returns:

true if SELECT * is set

selectDistinct

public void selectDistinct(boolean selectDistinct)

Set if the SELECT expression should be SELECT DISTINCT.

Parameters:

selectDistinct - true for SELECT DISTINCT

isSelectDistinct

public boolean isSelectDistinct()

Return true if the SELECT expression should be SELECT DISTINCT.

Returns:

true if the SELECT expression should be SELECT DISTINCT

isSelect

public boolean isSelect(java.lang.String var)

Return true if a variable is in the SELECT list of variables.

Parameters:

var - the variable name

Returns:

true if the variable is in the SELECT list of variables

getSelectMap

public java.util.Map<java.lang.String,SelectItem> getSelectMap()

Return the map of SELECT items.

Returns:

the map of SELECT items

getSelectList

public java.util.List<SelectItem> getSelectList()

isEmptySelect

public boolean isEmptySelect()

addSelect

public boolean addSelect(SelectExpression selectExpr)

Add an expression to use for the SELECT part of the Sparql request.

Parameters:

selectExpr - the select expression

Returns:

true if the expression could be added

addSelect

public boolean addSelect(Expression expr,
                         java.lang.String asVar)

Add an expression to use for the SELECT part of the Sparql request.

Parameters:

expr - the expression

asVar - the AS variable

Returns:

true if the variable could be added

addSelectVariable

public Variable addSelectVariable(SelectExpression selectExpr)

Add a variable for a select expression.

Parameters:

selectExpr - the select expression

Returns:

true if there is not variable for the select expression or the variable can be added

setSelect

public void setSelect(java.lang.String... vars)

Set the variables to use for the SELECT part of the Sparql request. Note that it will unset the isSelectAll() property.

Parameters:

vars - the variables

addSelect

public boolean addSelect(java.lang.String var)

Add a variable to use for the SELECT part of the Sparql request.

Parameters:

var - the variable

Returns:

true if the variable could be added

addSelect

public boolean addSelect(java.lang.String... vars)

Add several variables to use for the SELECT part of the Sparql request.

Parameters:

vars - the variables

Returns:

true if all the variables could be added

setSelectAll

public boolean setSelectAll()

Set "*" for SELECT all variables.

Returns:

false if there where already variables in the select