Package org.apache.cayenne.dba.sqlite

Class SQLiteQualifierTranslator

java.lang.Object

org.apache.cayenne.access.translator.select.QueryAssemblerHelper

org.apache.cayenne.access.translator.select.QualifierTranslator

org.apache.cayenne.dba.sqlite.SQLiteQualifierTranslator

All Implemented Interfaces:

TraversalHandler

public class SQLiteQualifierTranslator
extends QualifierTranslator

Since:

4.0

Field Summary

Fields inherited from class org.apache.cayenne.access.translator.select.QualifierTranslator

caseInsensitive, matchingObject, objectMatchTranslator, qualifier, useAliasForExpressions, waitingForEndNode

Fields inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper

out, queryAssembler, strategy

Constructor Summary

Constructors

Constructor	Description
SQLiteQualifierTranslator(QueryAssembler queryAssembler)

Method Summary

Modifier and Type	Method	Description
protected void	appendExtractFunction(ASTExtract functionExpression)	Translates to cast(strftime('format', column) as integer).
protected void	appendFunction(ASTFunctionCall functionExpression)	Append function name to result SQL Override this method to rename or skip function if generic name isn't supported on target DB.
protected void	appendFunctionArgDivider(ASTFunctionCall functionExpression)	Append divider between function arguments.
protected void	clearLastFunctionArgDivider(ASTFunctionCall functionExpression)	Clear last divider as we currently don't now position of argument until parent element is ended.
void	endNode(Expression node, Expression parentNode)	Called during the traversal after an expression node children processing is finished.
protected boolean	parenthesisNeeded(Expression node, Expression parentNode)

Methods inherited from class org.apache.cayenne.access.translator.select.QualifierTranslator

appendFunctionArg, appendLiteral, appendObjectMatch, detectObjectMatch, doAppendPart, doAppendPart, extractQualifier, finishedChild, objectNode, operandForBitwiseAnd, operandForBitwiseLeftShift, operandForBitwiseNot, operandForBitwiseOr, operandForBitwiseRightShift, operandForBitwiseXor, processRelTermination, setCaseInsensitive, setQualifier, setUseAliasForExpressions, startNode

Methods inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper

appendDbPath, appendLikeEscapeCharacter, appendLiteralDirect, appendObjPath, appendPart, getDbEntity, getObjEntity, paramsDbType, processColumn, processColumnWithQuoteSqlIdentifiers, processRelTermination, setForceJoinForRelations

Methods inherited from class java.lang.Object

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

Constructor Details

SQLiteQualifierTranslator

public SQLiteQualifierTranslator(QueryAssembler queryAssembler)

Method Details

endNode

public void endNode(Expression node,
Expression parentNode)

Description copied from interface: TraversalHandler

Called during the traversal after an expression node children processing is finished.

Specified by:

endNode in interface TraversalHandler

Overrides:

endNode in class QualifierTranslator

appendFunction

protected void appendFunction(ASTFunctionCall functionExpression)

Description copied from class: QualifierTranslator

Append function name to result SQL Override this method to rename or skip function if generic name isn't supported on target DB.

Overrides:

appendFunction in class QualifierTranslator

appendFunctionArgDivider

protected void appendFunctionArgDivider(ASTFunctionCall functionExpression)

Description copied from class: QualifierTranslator

Append divider between function arguments. In overriding methods can be replaced e.g. for " || " for CONCAT operation

Overrides:

appendFunctionArgDivider in class QualifierTranslator

clearLastFunctionArgDivider

protected void clearLastFunctionArgDivider(ASTFunctionCall functionExpression)

Description copied from class: QualifierTranslator

Clear last divider as we currently don't now position of argument until parent element is ended.

Overrides:

clearLastFunctionArgDivider in class QualifierTranslator

parenthesisNeeded

protected boolean parenthesisNeeded(Expression node,
Expression parentNode)

Overrides:

parenthesisNeeded in class QualifierTranslator

appendExtractFunction

protected void appendExtractFunction(ASTExtract functionExpression)

Translates to cast(strftime('format', column) as integer). Depends on connection property "date_class", can be set in connection URL (date_class=text). https://www.sqlite.org/lang_datefunc.html

Overrides:

appendExtractFunction in class QualifierTranslator