org.aksw.sparqlify.algebra.sql.nodes

Class SqlOpTable

java.lang.Object

org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase

org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase0

org.aksw.sparqlify.algebra.sql.nodes.SqlOpLeaf

org.aksw.sparqlify.algebra.sql.nodes.SqlOpTable

All Implemented Interfaces:

SqlOp

public class SqlOpTable
extends SqlOpLeaf

Field Summary

Fields inherited from class org.aksw.sparqlify.algebra.sql.nodes.SqlOpLeaf

aliasName

Fields inherited from class org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase0

isEmpty

Fields inherited from class org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase

schema

Constructor Summary

Constructors

Constructor and Description
SqlOpTable(Schema schema, String tableName) The alias name is assigned automatically by the SqlOpSelectBlockCollector.
SqlOpTable(Schema schema, String tableName, String aliasName)
SqlOpTable(Schema schema, String tableName, String aliasName, boolean isEmpty)

Method Summary

Methods

Modifier and Type	Method and Description
SqlOp	copy(Schema schema, List<SqlOp> newArgs) Create a copy of the SqlOp with a projected schema.
boolean	equals(Object obj)
String	getId()
String	getTableName()
int	hashCode()
String	toString()
void	write(org.apache.jena.atlas.io.IndentedWriter writer)

Methods inherited from class org.aksw.sparqlify.algebra.sql.nodes.SqlOpLeaf

getAliasName, getSubOps, setAliasName

Methods inherited from class org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase0

isEmpty

Methods inherited from class org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase

getSchema

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SqlOpTable

public SqlOpTable(Schema schema,
          String tableName)

The alias name is assigned automatically by the SqlOpSelectBlockCollector. If you think you need this field during the creation of algebraic expressions, you are probably doing something wrong; (at least I did so with the first version of Sparqlify)

SqlOpTable

public SqlOpTable(Schema schema,
          String tableName,
          String aliasName)

SqlOpTable

public SqlOpTable(Schema schema,
          String tableName,
          String aliasName,
          boolean isEmpty)

Method Detail

getTableName

public String getTableName()

write

public void write(org.apache.jena.atlas.io.IndentedWriter writer)

Specified by:

write in interface SqlOp

Overrides:

write in class SqlOpBase

toString

public String toString()

Overrides:

toString in class SqlOpBase

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getId

public String getId()

Specified by:

getId in class SqlOpLeaf

copy

public SqlOp copy(Schema schema,
         List<SqlOp> newArgs)

Description copied from interface: SqlOp

Create a copy of the SqlOp with a projected schema. The new schema will only hold information of the selected columns. Used to filter an Op to only the referenced columns. This is different from a projection!

Specified by:

copy in interface SqlOp

Overrides:

copy in class SqlOpBase