Docs For Class SparqlEngineDb

Class SparqlEngineDb_FilterGenerator

Description

Generates SQL from Sparql FILTER parts

author: Christian Weiske <cweiske@cweiske.de>

Located in /sparql/SparqlEngineDb/FilterGenerator.php (line 10)

Variable Summary

static mixed $arDumbOperators

static array $arFuncParamNumbers

static array $arOperatorSwitches

static mixed $typeVariable

static mixed $typeXsdBoolean

static mixed $typeXsdDateTime

static mixed $typeXsdDouble

static mixed $typeXsdInteger

static mixed $typeXsdString

boolean $bOptional

SparqlEngineDb_SqlGenerator $sg

Method Summary

static void mkVal ( $value, [ $type = null])

static void switchOperator ( $op)

SparqlEngineDb_FilterGenerator __construct (SparqlEngineDb_SqlGenerator $sg)

void createBooleanValue ( $tree)

void createEquation ( $tree)

string createFilterSql (array $tree, boolean $bOptional, $nUnionCount)

void createFunction ( $tree)

void createFunction_bound ( $tree)

void createFunction_datatype ( $tree)

void createFunction_isblank ( $tree)

void createFunction_isiri ( $tree)

void createFunction_isliteral ( $tree)

void createFunction_isuri ( $tree)

void createFunction_lang ( $tree)

void createFunction_langmatches ( $tree)

void createFunction_regex ( $tree)

void createFunction_sameterm ( $tree)

void createFunction_str ( $tree)

void createFunction_xsd_datetime ( $tree)

void createSingleTypeCheck ( $val, $tree)

void createTreeSql ( $tree, $parent)

void createTypeEquation ( $operator, $val1, $val2, $tree1, $tree2)

void createValue (array $tree, boolean $bDumbParent)

void getCol ( $tree, $type)

void getDatatypeCol ( $tree)

void getDateConversionSql ( $strValue)

void getIsCol ( $tree)

void getLangCol ( $tree)

void getValueCol ( $tree)

void isNumber ( $tree)

boolean isObject (array $tree)

boolean isObjectOrSubject (array $tree)

boolean isPlainString (array $tree)

void isValueButNotVariableNorString ( $tree)

boolean isVariable (array $tree)

Variables

static mixed $arDumbOperators = array(
'&&', '||'
) (line 56)

access: protected

static array $arFuncParamNumbers = array(
'bound' => array(1, 1),'datatype'=>array(1,1),'isblank'=>array(1,1),'isiri'=>array(1,1),'isliteral'=>array(1,1),'isuri'=>array(1,1),'lang'=>array(1,1),'langmatches'=>array(2,2),'regex'=>array(2,3),'sameterm'=>array(2,2),'str'=>array(1,1),'xsd:datetime'=>array(1,1),) (line 29)

Number of parameters for the functions supported.

First value is minimum, second is maximum.

access: protected

static array $arOperatorSwitches = array(
'>' => '<',
'<' => '>',
'>=' => '<=',
'<=' => '>=',
) (line 49)

List of operators and their counterpart if operands are switched.

(a > b) => (b < a)

access: protected

static mixed $typeVariable = 'variable' (line 65)

access: protected

static mixed $typeXsdBoolean = 'http://www.w3.org/2001/XMLSchema#boolean' (line 60)

access: protected

static mixed $typeXsdDateTime = 'http://www.w3.org/2001/XMLSchema#dateTime' (line 61)

access: protected

static mixed $typeXsdDouble = 'http://www.w3.org/2001/XMLSchema#double' (line 62)

access: protected

static mixed $typeXsdInteger = 'http://www.w3.org/2001/XMLSchema#integer' (line 63)

access: protected

static mixed $typeXsdString = 'http://www.w3.org/2001/XMLSchema#string' (line 64)

access: protected

boolean $bOptional = false (line 22)

If the filter is in an optional statement

access: protected

SparqlEngineDb_SqlGenerator $sg = null (line 16)

SQL Generator

access: protected

Methods

static mkVal (line 662)

access: protected

static void mkVal ( $value, [ $type = null])

$value
$type

static switchOperator (line 799)

access: protected

static void switchOperator ( $op)

Constructor __construct (line 69)

access: public

SparqlEngineDb_FilterGenerator __construct (SparqlEngineDb_SqlGenerator $sg)

SparqlEngineDb_SqlGenerator $sg

createBooleanValue (line 213)

access: protected

void createBooleanValue ( $tree)

$tree

createEquation (line 270)

access: protected

void createEquation ( $tree)

$tree

createFilterSql (line 84)

Creates the SQL representing a Sparql FILTER.

return: SQL WHERE part with prefixed AND
access: public

string createFilterSql (array $tree, boolean $bOptional, $nUnionCount)

array $tree: Filter element tree as returned by SparqlParser::parseConstraintTree()
boolean $bOptional: If the filter is in an optional statement
$nUnionCount

createFunction (line 243)

access: protected

void createFunction ( $tree)

$tree

createFunction_bound (line 400)

Creates an sql statement that returns if the element is a blank node

access: protected

void createFunction_bound ( $tree)

$tree

createFunction_datatype (line 415)

access: protected

void createFunction_datatype ( $tree)

$tree

createFunction_isblank (line 434)

Creates an sql statement that returns if the element is a blank node

access: protected

void createFunction_isblank ( $tree)

$tree

createFunction_isiri (line 450)

access: protected

void createFunction_isiri ( $tree)

$tree

createFunction_isliteral (line 460)

Creates an sql statement that returns the language of the object

access: protected

void createFunction_isliteral ( $tree)

$tree

createFunction_isuri (line 475)

access: protected

void createFunction_isuri ( $tree)

$tree

createFunction_lang (line 493)

Creates an sql statement that returns the language of the object

access: protected

void createFunction_lang ( $tree)

$tree

createFunction_langmatches (line 512)

Creates an sql statement that checks if the variable

matches a given language

access: protected

void createFunction_langmatches ( $tree)

$tree

createFunction_regex (line 559)

Creates an sql statement that checks if the given part matches

an regex

access: protected

void createFunction_regex ( $tree)

$tree

createFunction_sameterm (line 601)

Creates an sql statement that checks if both terms are the same

access: protected

void createFunction_sameterm ( $tree)

$tree

createFunction_str (line 618)

Creates an sql statement that returns the string representation

of the given element

access: protected

void createFunction_str ( $tree)

$tree

createFunction_xsd_datetime (line 639)

Creates an sql statement that returns the datetime representation

of the given element

access: protected

void createFunction_xsd_datetime ( $tree)

$tree

createSingleTypeCheck (line 376)

Creates sql to ensure the type between $val and variable $tree is the same.

access: protected

void createSingleTypeCheck ( $val, $tree)

$val
$tree

createTreeSql (line 102)

access: protected

void createTreeSql ( $tree, $parent)

$tree
$parent

createTypeEquation (line 335)

Generates sql code to make sure the datatypes of the two operands match

access: protected

void createTypeEquation ( $operator, $val1, $val2, $tree1, $tree2)

$operator
$val1
$val2
$tree1
$tree2

createValue (line 141)

Creates the sql for an element of type "value".

access: protected

void createValue (array $tree, boolean $bDumbParent)

array $tree: Element
boolean $bDumbParent: True if the parent is a boolean equation or null.

getCol (line 668)

access: protected

void getCol ( $tree, $type)

$tree
$type

getDatatypeCol (line 680)

access: protected

void getDatatypeCol ( $tree)

$tree

getDateConversionSql (line 688)

access: protected

void getDateConversionSql ( $strValue)

$strValue

getIsCol (line 695)

access: protected

void getIsCol ( $tree)

$tree

getLangCol (line 702)

access: protected

void getLangCol ( $tree)

$tree

getValueCol (line 710)

access: protected

void getValueCol ( $tree)

$tree

isNumber (line 717)

access: protected

void isNumber ( $tree)

$tree

isObject (line 734)

Checks if the given tree element is a variable and the variable is actually an object in the database.

return: True if the element is an object
access: protected

boolean isObject (array $tree)

array $tree: Tree element

isObjectOrSubject (line 749)

Checks if the given tree element is a variable and the variable is actually an object or a subject in the database.

return: True if the element is an object or an subject
access: protected

boolean isObjectOrSubject (array $tree)

array $tree: Tree element

isPlainString (line 766)

Checks if the given tree element is a plain string (no variable)

return: True if the element is a string
access: protected

boolean isPlainString (array $tree)

array $tree: Tree element

isValueButNotVariableNorString (line 774)

access: protected

void isValueButNotVariableNorString ( $tree)

$tree

isVariable (line 789)

Checks if the given tree element is a variable

return: True if the element is a variable
access: protected

boolean isVariable (array $tree)

array $tree: Tree element

Documentation generated on Fri, 1 Jun 2007 16:49:06 +0200 by phpDocumentor 1.3.2