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org.hsqldb

public Class RangeVariable

extends Object
Class Inheritance
Known Direct Subclasses
org.hsqldb.RangeVariableJoined
Imports
org.hsqldb.HsqlNameManager.HsqlName, .HsqlNameManager.SimpleName, .ParserDQL.CompileContext, .RangeGroup.RangeGroupSimple, org.hsqldb.error.Error, .ErrorCode, org.hsqldb.index.Index, org.hsqldb.lib.ArrayUtil, .HashMap, .HashSet, .HsqlArrayList, .List, .OrderedHashMap, .OrderedHashSet, .OrderedIntHashSet, .OrderedLongHashSet, org.hsqldb.navigator.RangeIterator, .RowIterator, org.hsqldb.persist.PersistentStore, org.hsqldb.types.Type
Metadata for range variables, including conditions.
Author
Fred Toussi (fredt@users dot sourceforge.net)
Since
1.9.0
Version
2.7.4

Nested and Inner Type Summary

Modifier and TypeClass and Description
public static class
RangeVariable.RangeIteratorBase

pack-priv static class
RangeVariable.RangeIteratorCheck

public static class
RangeVariable.RangeIteratorJoined

public static class
RangeVariable.RangeIteratorMain

public static class
RangeVariable.RangeIteratorRight

public static class
RangeVariable.RangeVariableConditions

Field Summary

Modifier and TypeField and Description
private OrderedHashSet<String>
columnAliases

private HsqlNameManager.SimpleName[]
columnAliasNames

private OrderedHashSet<HsqlNameManager.HsqlName>
columnNames

pack-priv boolean[]
columnsInGroupBy

pack-priv static final RangeVariable[]
emptyArray

pack-priv Expression
filterCondition

pack-priv boolean
hasKeyedColumnInGroupBy

pack-priv boolean
hasLateral

pack-priv boolean
hasLeftJoin

pack-priv boolean
hasRightJoin

pack-priv int
indexDistinctCount

pack-priv boolean
isGenerated

pack-priv boolean
isJoin

pack-priv boolean
isLateral

pack-priv boolean
isLeftJoin

pack-priv boolean
isRightJoin

pack-priv boolean
isViewSubquery

pack-priv Expression
joinCondition

pack-priv RangeVariable.RangeVariableConditions[]
joinConditions

pack-priv int
level

pack-priv boolean[]
namedJoinColumnCheck

pack-priv HashMap<String, Expression>
namedJoinColumnExpressions

pack-priv OrderedHashSet<String>
namedJoinColumns

public static final int
PARAMETER_RANGE

pack-priv ExpressionPeriodOp
periodCondition

public static final int
PLACEHOLDER_RANGE

pack-priv int
rangePosition

pack-priv int
rangePositionInJoin

pack-priv Table
rangeTable

pack-priv int
rangeType

pack-priv int
subRangeCount

public static final int
TABLE_RANGE

pack-priv final HsqlNameManager.SimpleName
tableAlias

public static final int
TRANSITION_RANGE

pack-priv boolean[]
updatedColumns

pack-priv boolean[]
usedColumns

pack-priv OrderedHashMap<String, ColumnSchema>
variables

public static final int
VARIALBE_RANGE

pack-priv RangeVariable.RangeVariableConditions[]
whereConditions

Constructor Summary

AccessConstructor and Description
public
RangeVariable(OrderedHashMap<String, ColumnSchema> variables, HsqlNameManager.SimpleName rangeName, boolean isVariable, int rangeType)

public
RangeVariable(Table table, HsqlNameManager.SimpleName alias, OrderedHashSet<String> columnList, HsqlNameManager.SimpleName[] columnNameList, ParserDQL.CompileContext compileContext)

public
RangeVariable(Table table, int position)

Method Summary

Modifier and TypeMethod and Description
public void
addAllColumns()

public void
addColumn(int columnIndex)

private static void
addConditionsToList(HsqlArrayList<Expression> list, Expression[] array)

public void
addJoinCondition(Expression e)

public void
addNamedJoinColumnExpression(String name, Expression e, int position)

public void
addNamedJoinColumns(OrderedHashSet<String> columns)

public void
addTableColumns(HsqlArrayList<Expression> exprList)

Add all columns to a list of expressions

public int
addTableColumns(HsqlArrayList<Expression> exprList, int position, HashSet<String> exclude)

Add all columns to a list of expressions

public void
addTableColumns(RangeVariable subRange, Expression expression, HashSet<String> exclude)

protected void
addTableColumns(Expression expression, int start, int count, HashSet<String> exclude)

public OrderedHashSet<Expression>
collectAllExpressions(OrderedHashSet<Expression> set, OrderedIntHashSet typeSet, OrderedIntHashSet stopAtTypeSet)

pack-priv OrderedHashSet<RangeVariable>
collectRangeVariables(RangeVariable[] rangeVars, OrderedHashSet<RangeVariable> set)

public String

Returns:

a String representation of this object
describe(Session session, int blanks)

Retrieves a String representation of this obejct.

public int
findColumn(String schemaName, String tableName, String columnName)

public int

Returns:

int index or -1 if not found
findColumn(String
name of column
columnName)

Returns index for column

public PeriodDefinition
findPeriod(String schemaName, String tableName, String periodName)

public ColumnSchema
getColumn(int i)

public HsqlNameManager.SimpleName
getColumnAlias(int i)

public ExpressionColumn
getColumnExpression(String name)

public OrderedHashSet<HsqlNameManager.HsqlName>
getColumnNames()

protected int
getFirstColumnIndex(RangeVariable subRange)

public RangeVariable.RangeIteratorMain
getIterator(Session session)

public static RangeIterator
getIterator(Session session, RangeVariable[] rangeVars)

public Expression
getJoinCondition()

used before condition processing

public RangeVariable
getRangeForTableName(String name)

public Index
getSortIndex()

Used for sort

public OrderedHashSet<TableDerived>
getSubqueries()

public Table
getTable()

public HsqlNameManager.SimpleName
getTableAlias()

public OrderedHashSet<String>
getUniqueColumnNameSet()

public boolean
hasAnyIndexCondition()

public boolean
hasAnyTerminalCondition()

public boolean
hasColumnAlias()

public boolean
hasSingleIndexCondition()

public boolean
hasTableAlias()

public boolean
isVariable()

pack-priv void
moveConditionsToInner(Session session, RangeVariable[] ranges)

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

public void
replaceExpressions(OrderedHashSet<Expression> expressions, int resultRangePosition)

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

public void
resetConditions()

public void
resolveRangeTable(Session session, RangeGroup rangeGroup, RangeGroup[] rangeGroups)

pack-priv void
resolveRangeTableTypes(Session session, RangeVariable[] ranges)

private boolean
resolvesSchemaAndTableName(String schemaName, String tableName)

private boolean
resolvesSchemaName(String name)

private boolean
resolvesTableName(String name)

public boolean
reverseOrder()

public boolean
setDistinctColumnsOnIndex(int[] colMap)

public void
setFilterExpression(Session session, Expression expr)

public void
setForCheckConstraint()

Removes reference to Index to avoid possible memory leaks after alter table or drop index

public void
setJoinCondition(Expression e)

public void
setJoinType(boolean isLeft, boolean isRight)

public void
setRangeTableVariables()

public boolean
setSortIndex(Index index, boolean reversed)

Used for sort

public void
setSystemPeriodCondition(ExpressionPeriodOp condition)

Inherited from java.lang.Object:
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