com.hp.hpl.jena.sdb.core.sqlnode
Class SqlSelectBlock

java.lang.Object
  com.hp.hpl.jena.sdb.core.AnnotationsBase
      com.hp.hpl.jena.sdb.core.sqlnode.SqlNodeBase
          com.hp.hpl.jena.sdb.core.sqlnode.SqlNodeBase1
              com.hp.hpl.jena.sdb.core.sqlnode.SqlSelectBlock

All Implemented Interfaces:

Annotations, SqlNode, org.openjena.atlas.io.Printable

public class SqlSelectBlock
extends SqlNodeBase1

A unit that generates an SQL SELECT Statement. The SQL generation process is a pass over the SqlNdoe structure to generate SelectBlocks, then to generate the SQL strings.

Author:

Andy Seaborne

Method Summary

void	add(ColAlias c)
void	addAll(Collection<ColAlias> vc)
SqlNode	apply(SqlTransform transform, SqlNode newSubNode)
SqlSelectBlock	asSelectBlock()
SqlNode	clearView() Prepare the SelectBlock for use as a top level element - may discard the block
SqlNode	copy(SqlNode subNode)
static SqlNode	distinct(SDBRequest request, SqlNode sqlNode)
List<ColAlias>	getCols()
SqlExprList	getConditions()
boolean	getDistinct()
Scope	getIdScope()
long	getLength()
Scope	getNodeScope()
long	getStart()
boolean	hasConditions()
boolean	hasSlice()
boolean	isSelectBlock()
static SqlNode	project(SDBRequest request, SqlNode sqlNode)
static SqlNode	project(SDBRequest request, SqlNode sqlNode, ColAlias col)
static SqlNode	project(SDBRequest request, SqlNode sqlNode, Collection<ColAlias> cols)
static SqlNode	restrict(SDBRequest request, SqlNode sqlNode, SqlExpr expr)
static SqlNode	restrict(SDBRequest request, SqlNode sqlNode, SqlExprList exprs)
void	setBlockAlias(String alias)
static SqlNode	slice(SDBRequest request, SqlNode sqlNode, long start, long length)
static SqlNode	view(SDBRequest request, SqlNode sqlNode)
void	visit(SqlNodeVisitor visitor)

Methods inherited from class com.hp.hpl.jena.sdb.core.sqlnode.SqlNodeBase1

getSubNode

Methods inherited from class com.hp.hpl.jena.sdb.core.sqlnode.SqlNodeBase

asCoalesce, asDistinct, asInnerJoin, asJoin, asLeftJoin, asProject, asRestrict, asTable, getAliasName, isCoalesce, isDistinct, isInnerJoin, isJoin, isLeftJoin, isProject, isRestrict, isTable, output, output, tablesInvolved, toString, usesColumn

Methods inherited from class com.hp.hpl.jena.sdb.core.AnnotationsBase

addNote, addNotes, getNotes, hasNotes, hasOneNote

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.hp.hpl.jena.sdb.core.Annotations

addNote, addNotes, getNotes, hasNotes, hasOneNote

Method Detail

distinct

public static SqlNode distinct(SDBRequest request,
                               SqlNode sqlNode)

project

public static SqlNode project(SDBRequest request,
                              SqlNode sqlNode)

project

public static SqlNode project(SDBRequest request,
                              SqlNode sqlNode,
                              Collection<ColAlias> cols)

project

public static SqlNode project(SDBRequest request,
                              SqlNode sqlNode,
                              ColAlias col)

slice

public static SqlNode slice(SDBRequest request,
                            SqlNode sqlNode,
                            long start,
                            long length)

view

public static SqlNode view(SDBRequest request,
                           SqlNode sqlNode)

restrict

public static SqlNode restrict(SDBRequest request,
                               SqlNode sqlNode,
                               SqlExprList exprs)

restrict

public static SqlNode restrict(SDBRequest request,
                               SqlNode sqlNode,
                               SqlExpr expr)

isSelectBlock

public boolean isSelectBlock()

Specified by:

isSelectBlock in interface SqlNode

Overrides:

isSelectBlock in class SqlNodeBase

asSelectBlock

public SqlSelectBlock asSelectBlock()

Specified by:

asSelectBlock in interface SqlNode

Overrides:

asSelectBlock in class SqlNodeBase

setBlockAlias

public void setBlockAlias(String alias)

getCols

public List<ColAlias> getCols()

add

public void add(ColAlias c)

addAll

public void addAll(Collection<ColAlias> vc)

clearView

public SqlNode clearView()

Prepare the SelectBlock for use as a top level element - may discard the block

getConditions

public SqlExprList getConditions()

hasSlice

public boolean hasSlice()

hasConditions

public boolean hasConditions()

getStart

public long getStart()

getLength

public long getLength()

getIdScope

public Scope getIdScope()

Specified by:

getIdScope in interface SqlNode

Overrides:

getIdScope in class SqlNodeBase1

getNodeScope

public Scope getNodeScope()

Specified by:

getNodeScope in interface SqlNode

Overrides:

getNodeScope in class SqlNodeBase1

apply

public SqlNode apply(SqlTransform transform,
                     SqlNode newSubNode)

Specified by:

apply in class SqlNodeBase1

copy

public SqlNode copy(SqlNode subNode)

Specified by:

copy in class SqlNodeBase1

visit

public void visit(SqlNodeVisitor visitor)

getDistinct

public boolean getDistinct()