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org.apache.derby.impl.sql.compile
Class DB2LengthOperatorNode  

java.lang.Object
  org.apache.derby.impl.sql.compile.QueryTreeNode
      org.apache.derby.impl.sql.compile.ValueNode
          org.apache.derby.impl.sql.compile.UnaryOperatorNode
              org.apache.derby.impl.sql.compile.DB2LengthOperatorNode

All Implemented Interfaces:

org.apache.derby.iapi.sql.compile.Visitable

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public final class DB2LengthOperatorNode

extends UnaryOperatorNode

This node represents a unary DB2 compatible length operator

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Field Summary

 

Fields inherited from class org.apache.derby.impl.sql.compile.UnaryOperatorNode

IS_NULL, methodName, NOT, operand, operator, operatorType, receiverInterfaceType, resultInterfaceType, UNARY_MINUS, UNARY_PLUS, UnaryArgTypes, UnaryMethodNames, UnaryOperators, UnaryResultTypes, XMLPARSE_OP, XMLSERIALIZE_OP

 

Fields inherited from class org.apache.derby.impl.sql.compile.ValueNode

clause, dataTypeServices, IN_HAVING_CLAUSE, IN_SELECT_LIST, IN_UNKNOWN_CLAUSE, IN_WHERE_CLAUSE, transformed

 

Fields inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode

AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX, beginOffset, endOffset

 

Constructor Summary

DB2LengthOperatorNode()

 

Method Summary
ValueNode	bindExpression(FromList fromList, SubqueryList subqueryList, java.util.Vector aggregateVector)           Bind this operator
void	generateExpression(ExpressionClassBuilder acb, org.apache.derby.iapi.services.compiler.MethodBuilder mb)           Do code generation for this unary operator.
private  int	getConstantLength()
private  int	getConstantNodeLength()
java.lang.String	getReceiverInterfaceName()           This is a length operator node.
void	init(java.lang.Object operand)           Initializer for a DB2LengthOperatorNode

 

Methods inherited from class org.apache.derby.impl.sql.compile.UnaryOperatorNode

accept, addMethodParams, bindParameter, bindUnaryOperator, bindXMLParse, bindXMLSerialize, categorize, constantExpression, getOperand, getOperatorString, getOrderableVariantType, init, isConstantExpression, preprocess, printSubNodes, remapColumnReferencesToExpressions, setClause, setMethodName, setOperator, toString

 

Methods inherited from class org.apache.derby.impl.sql.compile.ValueNode

bindExpression, changeToCNF, checkIsBoolean, checkReliability, checkReliability, checkTopPredicatesForEqualsConditions, copyFields, eliminateNots, genEqualsFalseTree, generate, generateFilter, genIsNullTree, genSQLJavaSQLTree, getClause, getClone, getColumnName, getConstantValueAsObject, getDataValueFactory, getSchemaName, getSourceResultColumn, getTableName, getTablesReferenced, getTransformed, getTypeCompiler, getTypeId, getTypeServices, init, isBinaryEqualsOperatorNode, isBooleanFalse, isBooleanTrue, isCloneable, isParameterNode, isRelationalOperator, optimizableEqualityNode, putAndsOnTop, selectivity, setDescriptor, setTransformed, setType, updatableByCursor, verifyChangeToCNF, verifyEliminateNots, verifyPutAndsOnTop

 

Methods inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode

bind, convertDefaultNode, debugFlush, debugPrint, executeSchemaName, executeStatementName, formatNodeString, foundString, generate, generateAuthorizeCheck, getBeginOffset, getClassFactory, getCompilerContext, getContextManager, getCursorInfo, getDataDictionary, getDependencyManager, getEndOffset, getExecutionFactory, getGenericConstantActionFactory, getIntProperty, getLanguageConnectionContext, getNodeFactory, getNodeType, getNullNode, getParameterTypes, getRowEstimate, getSchemaDescriptor, getSchemaDescriptor, getSPSName, getStatementType, getTableDescriptor, getTypeCompiler, init, init, init, init, init, init, init, init, init, init, init, isAtomic, isInstanceOf, isSessionSchema, isSessionSchema, makeConstantAction, makeResultDescription, makeTableName, needsSavepoint, nodeHeader, optimize, parseQueryText, printLabel, referencesSessionSchema, resolveTableToSynonym, setBeginOffset, setContextManager, setEndOffset, setNodeType, setRefActionInfo, treePrint, treePrint, verifyClassExist

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

DB2LengthOperatorNode

public DB2LengthOperatorNode()

Method Detail

init

public void init(java.lang.Object operand)

Initializer for a DB2LengthOperatorNode

Overrides:

init in class UnaryOperatorNode

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bindExpression

public ValueNode bindExpression(FromList fromList,
                                SubqueryList subqueryList,
                                java.util.Vector aggregateVector)
                         throws org.apache.derby.iapi.error.StandardException

Bind this operator

Overrides:

bindExpression in class UnaryOperatorNode

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getReceiverInterfaceName

public java.lang.String getReceiverInterfaceName()

This is a length operator node. Overrides this method in UnaryOperatorNode for code generation purposes.

Overrides:

getReceiverInterfaceName in class UnaryOperatorNode

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generateExpression

public void generateExpression(ExpressionClassBuilder acb,
                               org.apache.derby.iapi.services.compiler.MethodBuilder mb)
                        throws org.apache.derby.iapi.error.StandardException

Do code generation for this unary operator.

Overrides:

generateExpression in class UnaryOperatorNode

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getConstantLength

private int getConstantLength()
                       throws org.apache.derby.iapi.error.StandardException

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getConstantNodeLength

private int getConstantNodeLength()
                           throws org.apache.derby.iapi.error.StandardException

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> impl >> sql >> [ compile overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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