Package org.apache.cayenne.dba.sqlite
Class SQLiteQualifierTranslator
- java.lang.Object
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- org.apache.cayenne.access.translator.select.QueryAssemblerHelper
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- org.apache.cayenne.access.translator.select.QualifierTranslator
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- org.apache.cayenne.dba.sqlite.SQLiteQualifierTranslator
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- All Implemented Interfaces:
TraversalHandler
public class SQLiteQualifierTranslator extends QualifierTranslator
- Since:
- 4.0
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Field Summary
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Fields inherited from class org.apache.cayenne.access.translator.select.QualifierTranslator
caseInsensitive, matchingObject, objectMatchTranslator, qualifier, useAliasForExpressions, waitingForEndNode
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Fields inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper
out, queryAssembler, strategy
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Constructor Summary
Constructors Constructor Description SQLiteQualifierTranslator(QueryAssembler queryAssembler)
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Method Summary
All Methods Instance Methods Concrete Methods 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)
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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
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Methods inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper
appendDbPath, appendLikeEscapeCharacter, appendLiteralDirect, appendObjPath, appendPart, getDbEntity, getObjEntity, paramsDbType, processColumn, processColumnWithQuoteSqlIdentifiers, processRelTermination, setForceJoinForRelations
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Constructor Detail
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SQLiteQualifierTranslator
public SQLiteQualifierTranslator(QueryAssembler queryAssembler)
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Method Detail
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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 interfaceTraversalHandler
- Overrides:
endNode
in classQualifierTranslator
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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 classQualifierTranslator
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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 classQualifierTranslator
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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 classQualifierTranslator
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parenthesisNeeded
protected boolean parenthesisNeeded(Expression node, Expression parentNode)
- Overrides:
parenthesisNeeded
in classQualifierTranslator
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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 classQualifierTranslator
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