org.hsqldb

Class QueryExpression

java.lang.Object

org.hsqldb.QueryExpression

All Implemented Interfaces:

RangeGroup

Direct Known Subclasses:

QuerySpecification

public class QueryExpression
extends java.lang.Object
implements RangeGroup

Nested Class Summary

Nested classes/interfaces inherited from interface org.hsqldb.RangeGroup

RangeGroup.RangeGroupEmpty, RangeGroup.RangeGroupSimple

Field Summary

Fields

Modifier and Type	Field and Description
static int	EXCEPT
static int	EXCEPT_ALL
Index	fullIndex
Index	idIndex
static int	INTERSECT
static int	INTERSECT_ALL
Index	mainIndex
static int	NOUNION
Index	orderIndex
TableBase	resultTable
static int	UNION
static int	UNION_ALL
static int	UNION_TERM

Fields inherited from interface org.hsqldb.RangeGroup

emptyArray, emptyGroup

Constructor Summary

Constructors

Constructor and Description
QueryExpression(ParserDQL.CompileContext compileContext, QueryExpression leftQueryExpression)

Method Summary

Modifier and Type	Method and Description
void	addExtraConditions(Expression e)
boolean	areColumnsResolved()
OrderedHashSet	collectAllExpressions(OrderedHashSet set, OrderedIntHashSet typeSet, OrderedIntHashSet stopAtTypeSet)
void	collectObjectNames(Set set)
java.lang.String	describe(Session session, int blanks)
Table	getBaseTable()
int[]	getBaseTableColumnMap()
Expression	getCheckCondition()
int	getColumnCount()
HashMappedList	getColumns()
Type[]	getColumnTypes()
QuerySpecification	getMainSelect()
ResultMetaData	getMetaData()
RangeVariable[]	getRangeVariables()
HsqlNameManager.HsqlName[]	getResultColumnNames()
TableBase	getResultTable()
java.lang.Object[]	getSingleRowValues(Session session)
OrderedHashSet	getSubqueries()
HsqlList	getUnresolvedExpressions()
java.lang.Object	getValue(Session session)
java.lang.Object[]	getValues(Session session)
boolean	hasReference(RangeVariable range)
boolean	isInsertable()
boolean	isRecursive()
boolean	isSingleColumn()
boolean	isUpdatable()
boolean	isVariable()
void	replaceColumnReferences(RangeVariable range, Expression[] list)
void	replaceRangeVariables(RangeVariable[] ranges, RangeVariable[] newRanges)
void	resolve(Session session)
void	resolve(Session session, RangeGroup[] rangeGroups, Type[] targetTypes)
void	resolveReferences(Session session, RangeGroup[] rangeGroups)
void	resolveTypes(Session session)
void	setColumnsDefined()
void	setCorrelated()
void	setFullOrder()
void	setReturningResult() Not for views.
void	setSingleRow()
void	setTableColumnNames(HashMappedList list) Used in views after full type resolution
void	setUnionCorresoponding()
void	setUnionCorrespondingColumns(OrderedHashSet names)
void	setView(View view) Used prior to type resolution

Methods inherited from class java.lang.Object

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

Field Detail

NOUNION

public static final int NOUNION

See Also:

Constant Field Values

UNION

public static final int UNION

See Also:

Constant Field Values

UNION_ALL

public static final int UNION_ALL

See Also:

Constant Field Values

INTERSECT

public static final int INTERSECT

See Also:

Constant Field Values

INTERSECT_ALL

public static final int INTERSECT_ALL

See Also:

Constant Field Values

EXCEPT_ALL

public static final int EXCEPT_ALL

See Also:

Constant Field Values

EXCEPT

public static final int EXCEPT

See Also:

Constant Field Values

UNION_TERM

public static final int UNION_TERM

See Also:

Constant Field Values

resultTable

public TableBase resultTable

mainIndex

public Index mainIndex

fullIndex

public Index fullIndex

orderIndex

public Index orderIndex

idIndex

public Index idIndex

Constructor Detail

QueryExpression

public QueryExpression(ParserDQL.CompileContext compileContext,
                       QueryExpression leftQueryExpression)

Method Detail

getRangeVariables

public RangeVariable[] getRangeVariables()

Specified by:

getRangeVariables in interface RangeGroup

setCorrelated

public void setCorrelated()

Specified by:

setCorrelated in interface RangeGroup

isVariable

public boolean isVariable()

Specified by:

isVariable in interface RangeGroup

setSingleRow

public void setSingleRow()

isRecursive

public boolean isRecursive()

setUnionCorresoponding

public void setUnionCorresoponding()

setUnionCorrespondingColumns

public void setUnionCorrespondingColumns(OrderedHashSet names)

setFullOrder

public void setFullOrder()

resolve

public void resolve(Session session)

resolve

public void resolve(Session session,
                    RangeGroup[] rangeGroups,
                    Type[] targetTypes)

resolveReferences

public void resolveReferences(Session session,
                              RangeGroup[] rangeGroups)

resolveTypes

public void resolveTypes(Session session)

getValues

public java.lang.Object[] getValues(Session session)

addExtraConditions

public void addExtraConditions(Expression e)

getSingleRowValues

public java.lang.Object[] getSingleRowValues(Session session)

getValue

public java.lang.Object getValue(Session session)

getSubqueries

public OrderedHashSet getSubqueries()

isSingleColumn

public boolean isSingleColumn()

getMetaData

public ResultMetaData getMetaData()

getMainSelect

public QuerySpecification getMainSelect()

describe

public java.lang.String describe(Session session,
                                 int blanks)

getUnresolvedExpressions

public HsqlList getUnresolvedExpressions()

areColumnsResolved

public boolean areColumnsResolved()

getColumnTypes

public Type[] getColumnTypes()

getColumnCount

public int getColumnCount()

collectAllExpressions

public OrderedHashSet collectAllExpressions(OrderedHashSet set,
                                            OrderedIntHashSet typeSet,
                                            OrderedIntHashSet stopAtTypeSet)

collectObjectNames

public void collectObjectNames(Set set)

getColumns

public HashMappedList getColumns()

setView

public void setView(View view)

Used prior to type resolution

setTableColumnNames

public void setTableColumnNames(HashMappedList list)

Used in views after full type resolution

setColumnsDefined

public void setColumnsDefined()

setReturningResult

public void setReturningResult()

Not for views. Only used on root node.

getResultColumnNames

public HsqlNameManager.HsqlName[] getResultColumnNames()

getResultTable

public TableBase getResultTable()

getBaseTable

public Table getBaseTable()

isUpdatable

public boolean isUpdatable()

isInsertable

public boolean isInsertable()

getBaseTableColumnMap

public int[] getBaseTableColumnMap()

getCheckCondition

public Expression getCheckCondition()

hasReference

public boolean hasReference(RangeVariable range)

replaceColumnReferences

public void replaceColumnReferences(RangeVariable range,
                                    Expression[] list)

replaceRangeVariables

public void replaceRangeVariables(RangeVariable[] ranges,
                                  RangeVariable[] newRanges)