org.aksw.sparqlify.algebra.sql.exprs

Class S_Equals

java.lang.Object

org.aksw.sparqlify.algebra.sql.exprs.SqlExprBase

org.aksw.sparqlify.algebra.sql.exprs.SqlExpr2

org.aksw.sparqlify.algebra.sql.exprs.S_Equals

All Implemented Interfaces:

SqlExpr

public class S_Equals
extends SqlExpr2

Field Summary

Fields inherited from class org.aksw.sparqlify.algebra.sql.exprs.SqlExpr2

left, right

Constructor Summary

Constructors

Constructor and Description
S_Equals(SqlExpr left, SqlExpr right)

Method Summary

Methods

Modifier and Type	Method and Description
static SqlExprColumn	asColumn(SqlExpr expr)
static SqlExprValue	asConstant(SqlExpr expr)
static SqlExpr	create(SqlExpr left, SqlExpr right, DatatypeSystemOld system)
static SqlDatatype	getCommonDataype(SqlExpr left, SqlExpr right, DatatypeSystemOld system)
static org.aksw.commons.util.Pair<? extends SqlExpr,? extends SqlExpr>	resolveCast(SqlExpr left, SqlExpr right, DatatypeSystemOld system)
String	toString()
static SqlExprValue	tryCast(SqlExprValue value, SqlDatatype datatype)
static org.aksw.commons.util.Pair<SqlExprColumn,SqlExprValue>	tryMatch(SqlExpr left, SqlExpr right)
static org.aksw.commons.util.Pair<SqlExprColumn,SqlExprValue>	tryMatchDirected(SqlExpr left, SqlExpr right)

Methods inherited from class org.aksw.sparqlify.algebra.sql.exprs.SqlExpr2

getArgs, getLeft, getRight

Methods inherited from class org.aksw.sparqlify.algebra.sql.exprs.SqlExprBase

_getColumnsMentioned, asString, asString, asString, getColumnsMentioned, getDatatype

Methods inherited from class java.lang.Object

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

Constructor Detail

S_Equals

public S_Equals(SqlExpr left,
        SqlExpr right)

Method Detail

toString

public String toString()

Overrides:

toString in class SqlExprBase

getCommonDataype

public static SqlDatatype getCommonDataype(SqlExpr left,
                           SqlExpr right,
                           DatatypeSystemOld system)

asConstant

public static SqlExprValue asConstant(SqlExpr expr)

asColumn

public static SqlExprColumn asColumn(SqlExpr expr)

tryCast

public static SqlExprValue tryCast(SqlExprValue value,
                   SqlDatatype datatype)

resolveCast

public static org.aksw.commons.util.Pair<? extends SqlExpr,? extends SqlExpr> resolveCast(SqlExpr left,
                                                                          SqlExpr right,
                                                                          DatatypeSystemOld system)

tryMatch

public static org.aksw.commons.util.Pair<SqlExprColumn,SqlExprValue> tryMatch(SqlExpr left,
                                                              SqlExpr right)

tryMatchDirected

public static org.aksw.commons.util.Pair<SqlExprColumn,SqlExprValue> tryMatchDirected(SqlExpr left,
                                                                      SqlExpr right)

create

public static SqlExpr create(SqlExpr left,
             SqlExpr right,
             DatatypeSystemOld system)