Package org.hibernate.dialect

Class DB2SqlAstTranslator<T extends JdbcOperation>

java.lang.Object

org.hibernate.sql.ast.spi.AbstractSqlAstTranslator<T>

org.hibernate.dialect.DB2SqlAstTranslator<T>

All Implemented Interfaces:

Appendable, SqlAppender, SqlAstTranslator<T>, SqlAstWalker

Direct Known Subclasses:

DB2iSqlAstTranslator, DB2zSqlAstTranslator

public class DB2SqlAstTranslator<T extends JdbcOperation>
extends AbstractSqlAstTranslator<T>

A SQL AST translator for DB2.

Nested Class Summary

Nested classes/interfaces inherited from class org.hibernate.sql.ast.spi.AbstractSqlAstTranslator

AbstractSqlAstTranslator.ForUpdateClause, AbstractSqlAstTranslator.LockStrategy, AbstractSqlAstTranslator.SubQueryRelationalRestrictionEmulationRenderer<X extends Expression>

Field Summary

Fields inherited from interface org.hibernate.sql.ast.spi.SqlAppender

CLOSE_PARENTHESIS, COMA_SEPARATOR, COMA_SEPARATOR_CHAR, NO_SEPARATOR, NULL_KEYWORD, OPEN_PARENTHESIS, PARAM_MARKER, WHITESPACE

Constructor Summary

Constructors

Constructor	Description
DB2SqlAstTranslator(SessionFactoryImplementor sessionFactory, Statement statement)

Method Summary

Modifier and Type	Method	Description
DatabaseVersion	getDB2Version()
protected String	getForShare(int timeoutMillis)
protected String	getForUpdate()
protected String	getFromDual()	Some databases require a bit of syntactic noise when there are no tables in the from clause.
protected String	getFromDualForSelectOnly()
protected String	getSkipLocked()
protected void	renderComparison(Expression lhs, ComparisonOperator operator, Expression rhs)
protected void	renderExpressionAsClauseItem(Expression expression)
protected void	renderPartitionItem(Expression expression)
protected boolean	renderReturningClause(MutationStatement statement)
protected void	renderSelectExpression(Expression expression)
protected void	renderSelectTupleComparison(List<SqlSelection> lhsExpressions, SqlTuple tuple, ComparisonOperator operator)
protected boolean	shouldEmulateFetchClause(QueryPart queryPart)
protected boolean	supportsOffsetClause()
protected boolean	supportsRowValueConstructorSyntax()	Is this dialect known to support what ANSI-SQL terms "row value constructor" syntax; sometimes called tuple syntax.
protected boolean	supportsRowValueConstructorSyntaxInInList()	If the dialect supports row values, does it offer such support in IN lists as well?
protected boolean	supportsRowValueConstructorSyntaxInQuantifiedPredicates()	Is this dialect known to support what ANSI-SQL terms "row value constructor" syntax; sometimes called tuple syntax with quantified predicates.
protected void	visitAnsiCaseSearchedExpression(CaseSearchedExpression caseSearchedExpression, Consumer<Expression> resultRenderer)
protected void	visitAnsiCaseSimpleExpression(CaseSimpleExpression caseSimpleExpression, Consumer<Expression> resultRenderer)
void	visitBooleanExpressionPredicate(BooleanExpressionPredicate booleanExpressionPredicate)
protected void	visitDeleteStatementOnly(DeleteStatement statement)
protected void	visitInsertStatementOnly(InsertStatement statement)
void	visitOffsetFetchClause(QueryPart queryPart)
void	visitQueryGroup(QueryGroup queryGroup)
void	visitQuerySpec(QuerySpec querySpec)
protected void	visitReturningColumns(MutationStatement mutationStatement)
protected void	visitUpdateStatementOnly(UpdateStatement statement)

Methods inherited from class org.hibernate.sql.ast.spi.AbstractSqlAstTranslator

addAdditionalWherePredicate, addAppliedParameterBinding, append, append, append, appendBackslashEscapedLikeLiteral, appendSql, appendSql, appendSql, appendSql, appendSql, areAllResultsParameters, areAllResultsParameters, assertRowsOnlyFetchClauseType, castFunction, cleanup, determineLateralEmulationPredicate, determineLockingStrategy, emulateFetchOffsetWithWindowFunctions, emulateFetchOffsetWithWindowFunctions, emulateQuantifiedTupleSubQueryPredicate, emulateQueryPartTableReferenceColumnAliasing, emulateSelectTupleComparison, emulateSortSpecificationNullPrecedence, emulateSubQueryRelationalRestrictionPredicate, emulateTupleComparison, emulateValuesTableReferenceColumnAliasing, getAffectedTableNames, getAppliedParameterBindings, getBooleanType, getClauseStack, getCurrentClauseStack, getCurrentDmlStatement, getCurrentQueryPart, getDialect, getDmlTargetTableAlias, getEffectiveLockMode, getEffectiveLockTimeout, getFetchClauseTypeForRowNumbering, getFilterJdbcParameters, getForUpdateWithClause, getIntegerType, getJdbcLockStrategy, getJdbcParameterBindings, getJdbcServices, getLeftHandExpression, getLimit, getLimitParameter, getLockOptions, getMaxRows, getNoWait, getOffsetParameter, getParameterBinders, getParameterBindValue, getParameterRenderingMode, getQueryPartForRowNumbering, getQueryPartStack, getRowsToSkip, getSelectItemReference, getSessionFactory, getSortSpecificationsRowNumbering, getSql, getSqlAppender, getStatement, getWrapperOptions, hasAggregateFunctions, hasLimit, hasNestedTableGroupsToRender, hasOffset, inOverOrWithinGroupClause, interpretExpression, isLiteral, isParameter, isRowNumberingCurrentQueryPart, isRowsOnlyFetchClauseType, needsMaxRows, needsRowsToSkip, prepareLimitOffsetParameters, processNestedTableGroupJoins, processTableGroupJoin, processTableGroupJoins, registerAffectedTable, registerAffectedTable, render, renderAsLiteral, renderBackslashEscapedLikePattern, renderCaseInsensitiveLikeEmulation, renderCasted, renderCombinedLimitClause, renderCombinedLimitClause, renderCommaSeparated, renderCommaSeparatedSelectExpression, renderCommaSeparatedSelectExpression, renderComparisonDistinctOperator, renderComparisonEmulateCase, renderComparisonEmulateDecode, renderComparisonEmulateIntersect, renderComparisonStandard, renderCycleClause, renderDerivedTableReference, renderExpressionAsLiteral, renderExpressionsAsSubquery, renderFetch, renderFetchExpression, renderFetchPlusOffsetExpression, renderFetchPlusOffsetExpressionAsLiteral, renderFetchPlusOffsetExpressionAsSingleParameter, renderFirstClause, renderFirstClause, renderFirstSkipClause, renderFirstSkipClause, renderForUpdateClause, renderLimitOffsetClause, renderLimitOffsetClause, renderLiteral, renderMaterializationHint, renderNamedTableReference, renderOffset, renderOffsetExpression, renderOffsetFetchClause, renderOffsetFetchClause, renderOrderBy, renderPrimaryTableReference, renderQueryGroup, renderRootTableGroup, renderRowNumber, renderRowNumberingSelectItems, renderRowsToClause, renderRowsToClause, renderSearchClause, renderSelectExpressionWithCastedOrInlinedPlainParameters, renderSelectSimpleComparison, renderSkipFirstClause, renderSkipFirstClause, rendersTableReferenceAlias, renderTableGroup, renderTableGroupJoin, renderTableReferenceIdentificationVariable, renderTableReferenceJoins, renderTopClause, renderTopClause, renderTopStartAtClause, renderTopStartAtClause, renderTupleComparisonStandard, resolveAliasedExpression, resolveAliasedExpression, resolveExpressionToAlias, setLimitParameter, setOffsetParameter, supportsDistinctFromPredicate, supportsDuplicateSelectItemsInQueryGroup, supportsFilterClause, supportsIntersect, supportsNestedSubqueryCorrelation, supportsNullPrecedence, supportsQuantifiedPredicates, supportsRowValueConstructorGtLtSyntax, supportsRowValueConstructorSyntaxInInSubQuery, supportsRowValueConstructorSyntaxInSet, supportsSimpleQueryGrouping, translate, translateDelete, translateInsert, translateSelect, translateUpdate, useOffsetFetchClause, visitAny, visitAssignment, visitBetweenPredicate, visitBinaryArithmeticExpression, visitCaseSearchedExpression, visitCaseSearchedExpression, visitCaseSimpleExpression, visitCaseSimpleExpression, visitCastTarget, visitCollation, visitColumnReference, visitConversion, visitCteContainer, visitDecodeCaseSearchedExpression, visitDeleteStatement, visitDistinct, visitDuration, visitDurationUnit, visitEntityTypeLiteral, visitEvery, visitExistsPredicate, visitExtractUnit, visitFilterFragmentPredicate, visitFilterPredicate, visitFormat, visitForUpdateClause, visitFromClause, visitFunctionTableReference, visitGroupByClause, visitGroupedPredicate, visitHavingClause, visitInListPredicate, visitInsertStatement, visitInSubQueryPredicate, visitJdbcLiteral, visitJunction, visitLikePredicate, visitModifiedSubQueryExpression, visitNamedTableReference, visitNegatedPredicate, visitNullnessPredicate, visitOrderBy, visitOver, visitOverClause, visitOverClause, visitOverflow, visitParameter, visitPartitionByClause, visitPartitionExpressions, visitPartitionExpressions, visitQueryLiteral, visitQueryPartTableReference, visitRelationalPredicate, visitSelectClause, visitSelectStatement, visitSelfRenderingExpression, visitSelfRenderingPredicate, visitSortSpecification, visitSortSpecification, visitSqlFragmentPredicate, visitSqlSelectExpression, visitSqlSelectExpression, visitSqlSelection, visitSqlSelectionExpression, visitSqlSelections, visitStar, visitSummarization, visitTableGroup, visitTableGroupJoin, visitTableReferenceJoin, visitTrimSpecification, visitTuple, visitUnaryOperationExpression, visitUpdateStatement, visitValuesList, visitValuesTableReference, visitWhereClause, withRowNumbering

Methods inherited from class java.lang.Object

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

Constructor Detail

DB2SqlAstTranslator

public DB2SqlAstTranslator(SessionFactoryImplementor sessionFactory,
                           Statement statement)

Method Detail

renderExpressionAsClauseItem

protected void renderExpressionAsClauseItem(Expression expression)

Overrides:

renderExpressionAsClauseItem in class AbstractSqlAstTranslator<T extends JdbcOperation>

visitBooleanExpressionPredicate

public void visitBooleanExpressionPredicate(BooleanExpressionPredicate booleanExpressionPredicate)

Specified by:

visitBooleanExpressionPredicate in interface SqlAstWalker

Overrides:

visitBooleanExpressionPredicate in class AbstractSqlAstTranslator<T extends JdbcOperation>

visitAnsiCaseSearchedExpression

protected void visitAnsiCaseSearchedExpression(CaseSearchedExpression caseSearchedExpression,
                                               Consumer<Expression> resultRenderer)

Overrides:

visitAnsiCaseSearchedExpression in class AbstractSqlAstTranslator<T extends JdbcOperation>

visitAnsiCaseSimpleExpression

protected void visitAnsiCaseSimpleExpression(CaseSimpleExpression caseSimpleExpression,
                                             Consumer<Expression> resultRenderer)

Overrides:

visitAnsiCaseSimpleExpression in class AbstractSqlAstTranslator<T extends JdbcOperation>

getForUpdate

protected String getForUpdate()

Overrides:

getForUpdate in class AbstractSqlAstTranslator<T extends JdbcOperation>

getForShare

protected String getForShare(int timeoutMillis)

Overrides:

getForShare in class AbstractSqlAstTranslator<T extends JdbcOperation>

getSkipLocked

protected String getSkipLocked()

Overrides:

getSkipLocked in class AbstractSqlAstTranslator<T extends JdbcOperation>

shouldEmulateFetchClause

protected boolean shouldEmulateFetchClause(QueryPart queryPart)

supportsOffsetClause

protected boolean supportsOffsetClause()

visitQueryGroup

public void visitQueryGroup(QueryGroup queryGroup)

Specified by:

visitQueryGroup in interface SqlAstWalker

Overrides:

visitQueryGroup in class AbstractSqlAstTranslator<T extends JdbcOperation>

visitQuerySpec

public void visitQuerySpec(QuerySpec querySpec)

Specified by:

visitQuerySpec in interface SqlAstWalker

Overrides:

visitQuerySpec in class AbstractSqlAstTranslator<T extends JdbcOperation>

visitOffsetFetchClause

public void visitOffsetFetchClause(QueryPart queryPart)

Specified by:

visitOffsetFetchClause in interface SqlAstWalker

Overrides:

visitOffsetFetchClause in class AbstractSqlAstTranslator<T extends JdbcOperation>

visitDeleteStatementOnly

protected void visitDeleteStatementOnly(DeleteStatement statement)

Overrides:

visitDeleteStatementOnly in class AbstractSqlAstTranslator<T extends JdbcOperation>

visitUpdateStatementOnly

protected void visitUpdateStatementOnly(UpdateStatement statement)

Overrides:

visitUpdateStatementOnly in class AbstractSqlAstTranslator<T extends JdbcOperation>

visitInsertStatementOnly

protected void visitInsertStatementOnly(InsertStatement statement)

Overrides:

visitInsertStatementOnly in class AbstractSqlAstTranslator<T extends JdbcOperation>

renderReturningClause

protected boolean renderReturningClause(MutationStatement statement)

renderComparison

protected void renderComparison(Expression lhs,
                                ComparisonOperator operator,
                                Expression rhs)

Overrides:

renderComparison in class AbstractSqlAstTranslator<T extends JdbcOperation>

renderSelectExpression

protected void renderSelectExpression(Expression expression)

Overrides:

renderSelectExpression in class AbstractSqlAstTranslator<T extends JdbcOperation>

renderSelectTupleComparison

protected void renderSelectTupleComparison(List<SqlSelection> lhsExpressions,
                                           SqlTuple tuple,
                                           ComparisonOperator operator)

Overrides:

renderSelectTupleComparison in class AbstractSqlAstTranslator<T extends JdbcOperation>

renderPartitionItem

protected void renderPartitionItem(Expression expression)

Overrides:

renderPartitionItem in class AbstractSqlAstTranslator<T extends JdbcOperation>

supportsRowValueConstructorSyntax

protected boolean supportsRowValueConstructorSyntax()

Description copied from class: AbstractSqlAstTranslator

Is this dialect known to support what ANSI-SQL terms "row value constructor" syntax; sometimes called tuple syntax.

Basically, does it support syntax like "... where (FIRST_NAME, LAST_NAME) = ('Steve', 'Ebersole') ...".

Overrides:

supportsRowValueConstructorSyntax in class AbstractSqlAstTranslator<T extends JdbcOperation>

Returns:

True if this SQL dialect is known to support "row value constructor" syntax; false otherwise.

supportsRowValueConstructorSyntaxInInList

protected boolean supportsRowValueConstructorSyntaxInInList()

Description copied from class: AbstractSqlAstTranslator

If the dialect supports row values, does it offer such support in IN lists as well?

For example, "... where (FIRST_NAME, LAST_NAME) IN ( (?, ?), (?, ?) ) ..."

Overrides:

supportsRowValueConstructorSyntaxInInList in class AbstractSqlAstTranslator<T extends JdbcOperation>

Returns:

True if this SQL dialect is known to support "row value constructor" syntax in the IN list; false otherwise.

supportsRowValueConstructorSyntaxInQuantifiedPredicates

protected boolean supportsRowValueConstructorSyntaxInQuantifiedPredicates()

Description copied from class: AbstractSqlAstTranslator

Is this dialect known to support what ANSI-SQL terms "row value constructor" syntax; sometimes called tuple syntax with quantified predicates.

Basically, does it support syntax like "... where (FIRST_NAME, LAST_NAME) = ALL (select ...) ...".

Overrides:

supportsRowValueConstructorSyntaxInQuantifiedPredicates in class AbstractSqlAstTranslator<T extends JdbcOperation>

Returns:

True if this SQL dialect is known to support "row value constructor" syntax with quantified predicates; false otherwise.

getFromDual

protected String getFromDual()

Description copied from class: AbstractSqlAstTranslator

Some databases require a bit of syntactic noise when there are no tables in the from clause.

Overrides:

getFromDual in class AbstractSqlAstTranslator<T extends JdbcOperation>

Returns:

the SQL equivalent to Oracle's from dual.

getFromDualForSelectOnly

protected String getFromDualForSelectOnly()

Overrides:

getFromDualForSelectOnly in class AbstractSqlAstTranslator<T extends JdbcOperation>

visitReturningColumns

protected void visitReturningColumns(MutationStatement mutationStatement)

Overrides:

visitReturningColumns in class AbstractSqlAstTranslator<T extends JdbcOperation>

getDB2Version

public DatabaseVersion getDB2Version()