BinaryLogicalOperatorNode (Apache Derby V10.14 Internals)

java.lang.Object
- org.apache.derby.impl.sql.compile.QueryTreeNode
- - org.apache.derby.impl.sql.compile.ValueNode
  - - org.apache.derby.impl.sql.compile.OperatorNode
    - - org.apache.derby.impl.sql.compile.BinaryOperatorNode
      - org.apache.derby.impl.sql.compile.BinaryLogicalOperatorNode

All Implemented Interfaces:

Visitable

Direct Known Subclasses:

AndNode, IsNode, OrNode
```
abstract class BinaryLogicalOperatorNode
extends BinaryOperatorNode
```

Field Summary

Fields
Modifier and Type Field Description

(package private) boolean shortCircuitValue
- Fields inherited from class org.apache.derby.impl.sql.compile.BinaryOperatorNode
  AND, BinaryArgTypes, BinaryMethodNames, BinaryOperators, BinaryResultTypes, CONCATENATE, DIVIDE, EQ, GE, GT, K_BASE, K_XMLEXISTS, K_XMLQUERY, kind, LE, leftInterfaceType, leftOperand, LIKE, LT, methodName, MINUS, NE, operator, OR, PLUS, receiver, resultInterfaceType, rightInterfaceType, rightOperand, TIMES
- Fields inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode
  AUTOINCREMENT_CREATE_MODIFY, AUTOINCREMENT_CYCLE, AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX
- Fields inherited from class org.apache.derby.impl.sql.compile.ValueNode
  transformed

Fields
Modifier and Type	Field	Description
`(package private) boolean`	`shortCircuitValue`

Constructor Summary

Constructors
Constructor	Description
`BinaryLogicalOperatorNode(ValueNode leftOperand, ValueNode rightOperand, java.lang.String methodName, ContextManager cm)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) ValueNode`	`bindExpression(FromList fromList, SubqueryList subqueryList, java.util.List<AggregateNode> aggregates)`	Bind this logical operator.
`(package private) void`	`generateExpression(ExpressionClassBuilder acb, MethodBuilder mb)`	Do code generation for this logical binary operator.
`(package private) DataTypeDescriptor`	`resolveLogicalBinaryOperator(DataTypeDescriptor leftType, DataTypeDescriptor rightType)`
`(package private) boolean`	`verifyEliminateNots()`	Verify that eliminateNots() did its job correctly.

Methods inherited from class org.apache.derby.impl.sql.compile.BinaryOperatorNode
acceptChildren, bindXMLQuery, categorize, constantExpression, genSQLJavaSQLTree, getLeftOperand, getOrderableVariantType, getReceiverInterfaceName, getRightOperand, isConstantExpression, isEquivalent, isSameNodeKind, preprocess, printSubNodes, remapColumnReferencesToExpressions, setLeftOperand, setLeftRightInterfaceType, setMethodName, setOperator, setRightOperand, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from class org.apache.derby.impl.sql.compile.OperatorNode
pushSqlXmlUtil

Methods inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode
accept, addTag, addUDTUsagePriv, addUDTUsagePriv, bindOffsetFetch, bindRowMultiSet, bindUserCatalogType, bindUserType, checkReliability, checkReliability, convertDefaultNode, copyTagsFrom, createTypeDependency, debugFlush, debugPrint, disablePrivilegeCollection, formatNodeString, generateAuthorizeCheck, getBeginOffset, getClassFactory, getCompilerContext, getContext, getContextManager, getDataDictionary, getDependencyManager, getEndOffset, getExecutionFactory, getGenericConstantActionFactory, getIntProperty, getLanguageConnectionContext, getLongProperty, getNullNode, getOffsetOrderedNodes, getOptimizerFactory, getOptimizerTracer, getParameterTypes, getSchemaDescriptor, getSchemaDescriptor, getStatementType, getTableDescriptor, getTypeCompiler, getUDTDesc, isAtomic, isPrivilegeCollectionRequired, isSessionSchema, isSessionSchema, makeConstantAction, makeTableName, makeTableName, nodeHeader, optimizerTracingIsOn, orReliability, parseSearchCondition, parseStatement, printLabel, referencesSessionSchema, resolveTableToSynonym, setBeginOffset, setEndOffset, setRefActionInfo, stackPrint, taggedWith, treePrint, treePrint, verifyClassExist

Methods inherited from class org.apache.derby.impl.sql.compile.ValueNode
bindExpression, changeToCNF, checkIsBoolean, checkTopPredicatesForEqualsConditions, copyFields, eliminateNots, evaluateConstantExpressions, genEqualsFalseTree, generate, genIsNullTree, getClone, getColumnName, getConstantValueAsObject, getDataValueFactory, getSchemaName, getSourceResultColumn, getTableName, getTablesReferenced, getTransformed, getTypeCompiler, getTypeId, getTypeServices, isBinaryEqualsOperatorNode, isBooleanFalse, isBooleanTrue, isCloneable, isInListProbeNode, isParameterNode, isRelationalOperator, optimizableEqualityNode, putAndsOnTop, requiresTypeFromContext, selectivity, setCollationInfo, setCollationInfo, setCollationUsingCompilationSchema, setCollationUsingCompilationSchema, setNullability, setTransformed, setType, setType, setType, updatableByCursor, verifyChangeToCNF, verifyPutAndsOnTop

- Field Detail
  - shortCircuitValue
```
boolean shortCircuitValue
```
- Constructor Detail
  - BinaryLogicalOperatorNode
```
BinaryLogicalOperatorNode(ValueNode leftOperand,
                          ValueNode rightOperand,
                          java.lang.String methodName,
                          ContextManager cm)
```
- Method Detail
  - bindExpression
```
ValueNode bindExpression(FromList fromList,
                         SubqueryList subqueryList,
                         java.util.List<AggregateNode> aggregates)
                  throws StandardException
```
    Bind this logical operator. All that has to be done for binding a logical operator is to bind the operands, check that both operands are BooleanDataValue, and set the result type to BooleanDataValue.
    
    Overrides:
    
    bindExpression in class BinaryOperatorNode
    
    Parameters:
    
    fromList - The query's FROM list
    
    subqueryList - The subquery list being built as we find SubqueryNodes
    
    aggregates - The aggregate list being built as we find AggregateNodes
    
    Returns:
    
    The new top of the expression tree.
    
    Throws:
    
    StandardException - Thrown on error
  - verifyEliminateNots
```
boolean verifyEliminateNots()
```
    Verify that eliminateNots() did its job correctly. Verify that there are no NotNodes above the top level comparison operators and boolean expressions.
    
    Overrides:
    
    verifyEliminateNots in class ValueNode
    
    Returns:
    
    Boolean which reflects validity of the tree.
  - generateExpression
```
void generateExpression(ExpressionClassBuilder acb,
                        MethodBuilder mb)
                 throws StandardException
```
    Do code generation for this logical binary operator. This is used for AND and OR. the IsNode extends this class but overrides generateExpression.
    
    Overrides:
    
    generateExpression in class BinaryOperatorNode
    
    Parameters:
    
    acb - The ExpressionClassBuilder for the class we're generating
    
    mb - The method the code to place the code
    
    Throws:
    
    StandardException - Thrown on error
  - resolveLogicalBinaryOperator
```
DataTypeDescriptor resolveLogicalBinaryOperator(DataTypeDescriptor leftType,
                                                DataTypeDescriptor rightType)
                                         throws StandardException
```
    Throws:
    
    StandardException

Class BinaryLogicalOperatorNode

Field Summary

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

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

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

Constructor Summary

Method Summary

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

Methods inherited from class java.lang.Object

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

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

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

Field Detail

shortCircuitValue

Constructor Detail

BinaryLogicalOperatorNode

Method Detail

bindExpression

verifyEliminateNots

generateExpression

resolveLogicalBinaryOperator