Uses of Interface
com.metamatrix.query.sql.symbol.Expression

Packages that use Expression

com.metamatrix.query.eval
com.metamatrix.query.optimizer.relational.rules
com.metamatrix.query.optimizer.xml
com.metamatrix.query.parser
com.metamatrix.query.processor.proc
com.metamatrix.query.processor.relational
com.metamatrix.query.resolver.util
com.metamatrix.query.rewriter
com.metamatrix.query.sql.lang
com.metamatrix.query.sql.proc
com.metamatrix.query.sql.symbol
com.metamatrix.query.sql.util
com.metamatrix.query.sql.visitor
com.metamatrix.query.validator

Uses of Expression in com.metamatrix.query.eval

Methods in com.metamatrix.query.eval with parameters of type Expression

static java.lang.Object	Evaluator.evaluate(Expression expression)
java.lang.Object	Evaluator.evaluate(Expression expression, java.util.List tuple)

Uses of Expression in com.metamatrix.query.optimizer.relational.rules

Methods in com.metamatrix.query.optimizer.relational.rules that return types with arguments of type Expression

static java.util.Map<ElementSymbol,Expression>

FrameUtil.buildSymbolMap(GroupSymbol oldGroup, GroupSymbol newGroup, QueryMetadataInterface metadata) creates a symbol map of elements in oldGroup mapped to corresponding elements in newGroup if newGroup is null, then a mapping of oldGroup elements to null constants will be returned

Methods in com.metamatrix.query.optimizer.relational.rules with parameters of type Expression

static boolean

JoinUtil.isNullDependent(QueryMetadataInterface metadata, java.util.Collection innerGroups, Expression expr)

Uses of Expression in com.metamatrix.query.optimizer.xml

Methods in com.metamatrix.query.optimizer.xml that return Expression

Expression

ReferenceBindingReplacerVisitor.replaceExpression(Expression element)

Methods in com.metamatrix.query.optimizer.xml with parameters of type Expression

Expression

ReferenceBindingReplacerVisitor.replaceExpression(Expression element)

Uses of Expression in com.metamatrix.query.parser

Methods in com.metamatrix.query.parser that return Expression

Expression

QueryParser.parseExpression(java.lang.String sql) Takes a SQL string representing an SQL expression and returns the object representation.

Uses of Expression in com.metamatrix.query.processor.proc

Methods in com.metamatrix.query.processor.proc that return Expression

Expression

AbstractAssignmentInstruction.getExpression()

Methods in com.metamatrix.query.processor.proc with parameters of type Expression

void	AbstractAssignmentInstruction.setExpression(Expression expression)

Uses of Expression in com.metamatrix.query.processor.relational

Methods in com.metamatrix.query.processor.relational that return Expression

Expression	LimitNode.getLimitExpr()
Expression	LimitNode.getOffsetExpr()

Methods in com.metamatrix.query.processor.relational with parameters of type Expression

ValueIterator

DependentValueSource.getValueIterator(Expression valueExpression)

Constructors in com.metamatrix.query.processor.relational with parameters of type Expression

LimitNode(int nodeID, Expression limitExpr, Expression offsetExpr)

Uses of Expression in com.metamatrix.query.resolver.util

Methods in com.metamatrix.query.resolver.util that return Expression

static Expression	ResolverUtil.convertExpression(Expression sourceExpression, java.lang.String targetTypeName) Replaces a sourceExpression with a conversion of the source expression to the target type.
static Expression	ResolverUtil.convertExpression(Expression sourceExpression, java.lang.String sourceTypeName, java.lang.String targetTypeName) Replaces a sourceExpression with a conversion of the source expression to the target type.
static Expression	ResolverUtil.getDefault(ElementSymbol symbol, QueryMetadataInterface metadata) Get the default value for the parameter, which could be null if the parameter is set to NULLABLE.

Methods in com.metamatrix.query.resolver.util with parameters of type Expression

static Expression	ResolverUtil.convertExpression(Expression sourceExpression, java.lang.String targetTypeName) Replaces a sourceExpression with a conversion of the source expression to the target type.
static Expression	ResolverUtil.convertExpression(Expression sourceExpression, java.lang.String sourceTypeName, java.lang.String targetTypeName) Replaces a sourceExpression with a conversion of the source expression to the target type.
static void	ResolverUtil.setTypeIfReference(Expression expression, java.lang.Class targetType, LanguageObject surroundingExpression) Utility to set the type of an expression if it is a Reference and has a null type.

Uses of Expression in com.metamatrix.query.rewriter

Methods in com.metamatrix.query.rewriter that return Expression

Expression	VariableSubstitutionVisitor.replaceExpression(Expression expr) Common pattern used by visit methods in this Visitor
static Expression	QueryRewriter.rewriteExpression(Expression expression, Command procCommand, CommandContext context, QueryMetadataInterface metadata)

Methods in com.metamatrix.query.rewriter with parameters of type Expression

static boolean	QueryRewriter.isNull(Expression expr)
Expression	VariableSubstitutionVisitor.replaceExpression(Expression expr) Common pattern used by visit methods in this Visitor
static Expression	QueryRewriter.rewriteExpression(Expression expression, Command procCommand, CommandContext context, QueryMetadataInterface metadata)

Uses of Expression in com.metamatrix.query.sql.lang

Methods in com.metamatrix.query.sql.lang that return Expression

Expression	SPParameter.getExpression() Return the expression defining the value of this parameter
Expression	IsNullCriteria.getExpression() Get expression.
Expression	BetweenCriteria.getExpression() Get expression.
Expression	AbstractSetCriteria.getExpression() Gets the membership expression to be compared.
Expression	MatchCriteria.getLeftExpression() Get left expression.
Expression	AbstractCompareCriteria.getLeftExpression() Get left expression.
Expression	BetweenCriteria.getLowerExpression() Get the lower expression.
Expression	Limit.getOffset()
Expression	SubqueryCompareCriteria.getRightExpression()
Expression	MatchCriteria.getRightExpression() Get right expression.
Expression	CompareCriteria.getRightExpression() Get right expression.
abstract Expression	AbstractCompareCriteria.getRightExpression()
Expression	Limit.getRowLimit()
Expression	DynamicCommand.getSql()
Expression	BetweenCriteria.getUpperExpression() Get the upper expression.
Expression	SetClause.getValue()
Expression	DependentSetCriteria.getValueExpression() Get the independent value expression

Methods in com.metamatrix.query.sql.lang that return types with arguments of type Expression

java.util.LinkedHashMap<ElementSymbol,Expression>

SetClauseList.getClauseMap()

Methods in com.metamatrix.query.sql.lang with parameters of type Expression

void	Update.addChange(ElementSymbol id, Expression value) Add change to change list - a change is represented by a CompareCriteria internally but can be added here as an element and an expression
void	SetClauseList.addClause(ElementSymbol symbol, Expression expression)
void	GroupBy.addSymbol(Expression symbol) Adds a new symbol to the list of symbols.
void	Insert.addValue(Expression value) Adds a value to the list of values
void	BulkInsert.addValue(Expression value)
void	SetCriteria.set(Expression expression, java.util.Collection values) Sets the membership expression and the set of value expressions
void	CompareCriteria.set(Expression leftExpression, int operator, Expression rightExpression) Sets the operands and operator.
void	SPParameter.setExpression(Expression expression) Set the expression defining this parameter
void	IsNullCriteria.setExpression(Expression expression) Set expression.
void	BetweenCriteria.setExpression(Expression expression) Set expression.
void	AbstractSetCriteria.setExpression(Expression expression) Sets the membership expression
void	MatchCriteria.setLeftExpression(Expression expression) Set left expression.
void	AbstractCompareCriteria.setLeftExpression(Expression expression) Set left expression.
void	BetweenCriteria.setLowerExpression(Expression lowerExpression) Set the lower expression.
void	Limit.setOffset(Expression offset)
void	MatchCriteria.setRightExpression(Expression expression) Set right expression.
void	CompareCriteria.setRightExpression(Expression expression) Set right expression.
void	Limit.setRowLimit(Expression rowLimit)
void	DynamicCommand.setSql(Expression sql)
void	BetweenCriteria.setUpperExpression(Expression upperExpression) Set the upper expression.
void	SetClause.setValue(Expression value)
void	DependentSetCriteria.setValueExpression(Expression valueExpression) Set the independent value expression

Constructors in com.metamatrix.query.sql.lang with parameters of type Expression

BetweenCriteria(Expression expression, Expression lowerExpression, Expression upperExpression)
Constructs an instance of this class with an expression

CompareCriteria(Expression leftExpression, int operator, Expression rightExpression)
Constructs an instance of this class for a specific "operand operator operand" clause.

DependentSetCriteria(Expression expr)
Construct with the left expression

DynamicCommand(Expression sql, java.util.List columns, GroupSymbol intoGroup, SetClauseList using)

IsNullCriteria(Expression expression)
Constructs an instance of this class with an expression

Limit(Expression offset, Expression rowLimit)

MatchCriteria(Expression leftExpression, Expression rightExpression)
Constructs an instance of this class from a left and right expression

MatchCriteria(Expression leftExpression, Expression rightExpression, char escapeChar)
Constructs an instance of this class from a left and right expression and an escape character

SetClause(ElementSymbol symbol, Expression value)

SetCriteria(Expression expression, java.util.Collection values)
Constructs an instance of this class with the membership expression and value expressions

SPParameter(int index, Expression expression)
Constructor used when constructing a parameter during execution.

SubqueryCompareCriteria(Expression leftExpression, Command subCommand, int operator, int predicateQuantifier)

SubquerySetCriteria(Expression expression, Command subCommand)

Uses of Expression in com.metamatrix.query.sql.proc

Methods in com.metamatrix.query.sql.proc that return Expression

Expression

AssignmentStatement.getExpression()

Methods in com.metamatrix.query.sql.proc with parameters of type Expression

void	AssignmentStatement.setExpression(Expression expression)

Constructors in com.metamatrix.query.sql.proc with parameters of type Expression

RaiseErrorStatement(Expression message)
Constructor for RaiseErrorStatement.

Uses of Expression in com.metamatrix.query.sql.symbol

Classes in com.metamatrix.query.sql.symbol that implement Expression

class	AbstractCaseExpression
class	AggregateSymbol An aggregate symbol represents an aggregate function in the SELECT or HAVING clauses.
class	AliasSymbol An AliasSymbol wraps a SingleElementSymbol and changes it's name.
class	CaseExpression
class	Constant This class represents a literal value in a SQL string.
class	ElementSymbol This is a subclass of Symbol representing a single element.
class	ExpressionSymbol This is a subclass of Symbol representing an expression in the SELECT clause.
class	Function Represents a function in a sql statement.
class	Reference This class represents a reference within a SQL statement to some other source of data.
class	ScalarSubquery This is an Expression implementation that can be used in a SELECT clause.
class	SearchedCaseExpression
class	SingleElementSymbol This is a subclass of Symbol representing a single output column.

Methods in com.metamatrix.query.sql.symbol that return Expression

Expression	Function.getArg(int index) Get argument at specified index
Expression[]	Function.getArgs() Get function arguments
Expression	AbstractCaseExpression.getElseExpression() Gets the expression in the ELSE part of this expression.
Expression	Reference.getExpression()
Expression	ExpressionSymbol.getExpression() Get the expression for this symbol
Expression	CaseExpression.getExpression() Gets the expression whose evaluation is being tested in this case expression.
Expression	AbstractCaseExpression.getThenExpression(int index) Gets the expression of the THEN part at the given index.
Expression	CaseExpression.getWhenExpression(int index) Gets the WHEN expression at the given 0-based index.

Methods in com.metamatrix.query.sql.symbol with parameters of type Expression

void	Function.setArgs(Expression[] args) Set the function arguments - it is assumed that the args are not null.
void	AbstractCaseExpression.setElseExpression(Expression elseExpression) Sets the expression in the ELSE part of this expression.
void	Reference.setExpression(Expression expression)
void	ExpressionSymbol.setExpression(Expression expression) Set the expression represented by this symbol.
void	CaseExpression.setExpression(Expression expr) Sets the expression for this case expression

Constructors in com.metamatrix.query.sql.symbol with parameters of type Expression

AggregateSymbol(java.lang.String name, java.lang.String aggregateFunction, boolean isDistinct, Expression expression)
Construct an aggregate symbol with all given data.

AggregateSymbol(java.lang.String name, java.lang.String canonicalName, java.lang.String aggregateFunction, boolean isDistinct, Expression expression)
Constructor used for cloning

CaseExpression(Expression expression, java.util.List when, java.util.List then)
Constructor for CaseExpression objects

ExpressionSymbol(java.lang.String name, Expression expression)
Construct an ExpressionSymbol with name and expression.

ExpressionSymbol(java.lang.String name, java.lang.String canonicalName, Expression expression)
Constructor used for cloning

Function(java.lang.String name, Expression[] args)
Construct a function with function name and array of arguments.

Reference(int refIndex, Expression expression)
Constructor for Reference.

Uses of Expression in com.metamatrix.query.sql.util

Methods in com.metamatrix.query.sql.util that return Expression

static Expression	SymbolMap.getExpression(Expression symbol)
Expression	SymbolMap.getMappedExpression(ElementSymbol symbol)

Methods in com.metamatrix.query.sql.util that return types with arguments of type Expression

java.util.Map<ElementSymbol,Expression>	SymbolMap.asMap()
java.util.List<Expression>	SymbolMap.getValues()

Methods in com.metamatrix.query.sql.util with parameters of type Expression

boolean	SymbolMap.addMapping(ElementSymbol symbol, Expression expression)
static Expression	SymbolMap.getExpression(Expression symbol)
ValueIterator	ValueIteratorSource.getValueIterator(Expression valueExpression) Attempt to obtain a ValueIterator from this source.

Method parameters in com.metamatrix.query.sql.util with type arguments of type Expression

static SymbolMap

SymbolMap.createSymbolMap(java.util.List<ElementSymbol> virtualElements, java.util.List<? extends Expression> mappedCols)

Uses of Expression in com.metamatrix.query.sql.visitor

Methods in com.metamatrix.query.sql.visitor that return Expression

Expression	ExpressionMappingVisitor.replaceExpression(Expression element)
Expression	EvaluateExpressionVisitor.replaceExpression(Expression expr) Evaluate the expression.
Expression	CorrelatedVariableSubstitutionVisitor.replaceExpression(Expression expression)
Expression	AbstractSymbolMappingVisitor.replaceExpression(Expression element)

Methods in com.metamatrix.query.sql.visitor with parameters of type Expression

Expression	ExpressionMappingVisitor.replaceExpression(Expression element)
Expression	EvaluateExpressionVisitor.replaceExpression(Expression expr) Evaluate the expression.
Expression	CorrelatedVariableSubstitutionVisitor.replaceExpression(Expression expression)
Expression	AbstractSymbolMappingVisitor.replaceExpression(Expression element)

Uses of Expression in com.metamatrix.query.validator

Methods in com.metamatrix.query.validator with parameters of type Expression

static boolean

ValidationVisitor.isNonComparable(Expression symbol)

Constructor parameters in com.metamatrix.query.validator with type arguments of type Expression

AggregateValidationVisitor(java.util.Set<Expression> groupExpressions)