Package org.apache.cayenne.dba.openbase
Class OpenBaseQualifierTranslator
- 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.openbase.OpenBaseQualifierTranslator
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- All Implemented Interfaces:
TraversalHandler
public class OpenBaseQualifierTranslator extends QualifierTranslator
Translates query qualifier to SQL. Used as a helper class by query translators.- Since:
- 1.1
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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 OpenBaseQualifierTranslator(QueryAssembler queryAssembler)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected void
appendExtractFunction(ASTExtract functionExpression)
Special case for extract date/time parts functions as they have many variantsprotected void
appendLiteralDirect(Object val, DbAttribute attr, Expression parentExpression)
Appends SQL code to the query buffer to handleval
as a parameter to the PreparedStatement being built.void
endNode(Expression node, Expression parentNode)
Called during the traversal after an expression node children processing is finished.void
finishedChild(Expression node, int childIndex, boolean hasMoreChildren)
Called during traversal after a child of expression has been visited.void
startNode(Expression node, Expression parentNode)
Called during the traversal before an expression node children processing is started.-
Methods inherited from class org.apache.cayenne.access.translator.select.QualifierTranslator
appendFunction, appendFunctionArg, appendFunctionArgDivider, appendLiteral, appendObjectMatch, clearLastFunctionArgDivider, detectObjectMatch, doAppendPart, doAppendPart, extractQualifier, objectNode, operandForBitwiseAnd, operandForBitwiseLeftShift, operandForBitwiseNot, operandForBitwiseOr, operandForBitwiseRightShift, operandForBitwiseXor, parenthesisNeeded, processRelTermination, setCaseInsensitive, setQualifier, setUseAliasForExpressions
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Methods inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper
appendDbPath, appendLikeEscapeCharacter, appendObjPath, appendPart, getDbEntity, getObjEntity, paramsDbType, processColumn, processColumnWithQuoteSqlIdentifiers, processRelTermination, setForceJoinForRelations
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Constructor Detail
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OpenBaseQualifierTranslator
public OpenBaseQualifierTranslator(QueryAssembler queryAssembler)
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Method Detail
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startNode
public void startNode(Expression node, Expression parentNode)
Description copied from interface:TraversalHandler
Called during the traversal before an expression node children processing is started.- Specified by:
startNode
in interfaceTraversalHandler
- Overrides:
startNode
in classQualifierTranslator
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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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appendLiteralDirect
protected void appendLiteralDirect(Object val, DbAttribute attr, Expression parentExpression) throws IOException
Description copied from class:QueryAssemblerHelper
Appends SQL code to the query buffer to handleval
as a parameter to the PreparedStatement being built. Addsval
into QueryAssembler parameter list.- Overrides:
appendLiteralDirect
in classQueryAssemblerHelper
- Throws:
IOException
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finishedChild
public void finishedChild(Expression node, int childIndex, boolean hasMoreChildren)
Description copied from interface:TraversalHandler
Called during traversal after a child of expression has been visited.- Specified by:
finishedChild
in interfaceTraversalHandler
- Overrides:
finishedChild
in classQualifierTranslator
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appendExtractFunction
protected void appendExtractFunction(ASTExtract functionExpression)
Description copied from class:QualifierTranslator
Special case for extract date/time parts functions as they have many variants- Overrides:
appendExtractFunction
in classQualifierTranslator
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