public abstract class BinaryListOperatorNode extends ValueNode
Modifier and Type | Field and Description |
---|---|
(package private) ValueNode |
leftOperand |
(package private) java.lang.String |
methodName |
(package private) java.lang.String |
operator |
(package private) ValueNodeList |
rightOperandList |
transformed
AUTOINCREMENT_CREATE_MODIFY, AUTOINCREMENT_CYCLE, AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX
Constructor and Description |
---|
BinaryListOperatorNode(ValueNode leftOperand,
ValueNodeList rightOperandList,
java.lang.String operator,
java.lang.String methodName,
ContextManager cm) |
Modifier and Type | Method and Description |
---|---|
(package private) void |
acceptChildren(Visitor v)
Accept the visitor for all visitable children of this node.
|
(package private) void |
bindComparisonOperator()
Test the type compatability of the operands and set the type info
for this node.
|
(package private) ValueNode |
bindExpression(FromList fromList,
SubqueryList subqueryList,
java.util.List<AggregateNode> aggregates)
Bind this expression.
|
(package private) boolean |
categorize(JBitSet referencedTabs,
boolean simplePredsOnly)
Categorize this predicate.
|
(package private) boolean |
constantExpression(PredicateList whereClause)
Return whether or not this expression tree represents a constant value.
|
(package private) ValueNode |
getLeftOperand()
Get the leftOperand
|
protected int |
getOrderableVariantType()
Return the variant type for the underlying expression.
|
(package private) ValueNodeList |
getRightOperandList()
Get the rightOperandList
|
(package private) boolean |
isConstantExpression()
Return whether or not this expression tree represents a constant expression.
|
(package private) boolean |
isEquivalent(ValueNode o)
Tests if this node is equivalent to the specified ValueNode.
|
(package private) ValueNode |
preprocess(int numTables,
FromList outerFromList,
SubqueryList outerSubqueryList,
PredicateList outerPredicateList)
Preprocess an expression tree.
|
(package private) void |
printSubNodes(int depth)
Prints the sub-nodes of this object.
|
(package private) ValueNode |
remapColumnReferencesToExpressions()
Remap all ColumnReferences in this tree to be clones of the
underlying expression.
|
(package private) void |
setLeftOperand(ValueNode newLeftOperand)
Set the leftOperand to the specified ValueNode
|
(package private) void |
setRightOperandList(ValueNodeList newRightOperandList)
Set the rightOperandList to the specified ValueNodeList
|
java.lang.String |
toString()
Convert this object to a String.
|
bindExpression, changeToCNF, checkIsBoolean, checkTopPredicatesForEqualsConditions, copyFields, eliminateNots, evaluateConstantExpressions, genEqualsFalseTree, generate, generateExpression, genIsNullTree, genSQLJavaSQLTree, getClone, getColumnName, getConstantValueAsObject, getDataValueFactory, getSchemaName, getSourceResultColumn, getTableName, getTablesReferenced, getTransformed, getTypeCompiler, getTypeId, getTypeServices, isBinaryEqualsOperatorNode, isBooleanFalse, isBooleanTrue, isCloneable, isInListProbeNode, isParameterNode, isRelationalOperator, isSameNodeKind, optimizableEqualityNode, putAndsOnTop, requiresTypeFromContext, selectivity, setCollationInfo, setCollationInfo, setCollationUsingCompilationSchema, setCollationUsingCompilationSchema, setNullability, setTransformed, setType, setType, setType, updatableByCursor, verifyChangeToCNF, verifyEliminateNots, verifyPutAndsOnTop
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
java.lang.String methodName
java.lang.String operator
ValueNode leftOperand
ValueNodeList rightOperandList
BinaryListOperatorNode(ValueNode leftOperand, ValueNodeList rightOperandList, java.lang.String operator, java.lang.String methodName, ContextManager cm) throws java.lang.SecurityException
java.lang.SecurityException
public java.lang.String toString()
void printSubNodes(int depth)
printSubNodes
in class QueryTreeNode
depth
- The depth of this node in the treeValueNode bindExpression(FromList fromList, SubqueryList subqueryList, java.util.List<AggregateNode> aggregates) throws StandardException
bindExpression
in class ValueNode
fromList
- The FROM list for the query this
expression is in, for binding columns.subqueryList
- The subquery list being built as we find SubqueryNodesaggregates
- The aggregate list being built as we find AggregateNodesStandardException
- Thrown on errorvoid bindComparisonOperator() throws StandardException
StandardException
- Thrown on errorValueNode preprocess(int numTables, FromList outerFromList, SubqueryList outerSubqueryList, PredicateList outerPredicateList) throws StandardException
preprocess
in class ValueNode
numTables
- Number of tables in the DML StatementouterFromList
- FromList from outer query blockouterSubqueryList
- SubqueryList from outer query blockouterPredicateList
- PredicateList from outer query blockStandardException
- Thrown on errorvoid setLeftOperand(ValueNode newLeftOperand)
newLeftOperand
- The new leftOperandValueNode getLeftOperand()
void setRightOperandList(ValueNodeList newRightOperandList)
newRightOperandList
- The new rightOperandListValueNodeList getRightOperandList()
boolean categorize(JBitSet referencedTabs, boolean simplePredsOnly) throws StandardException
categorize
in class ValueNode
referencedTabs
- JBitSet with bit map of referenced FromTablessimplePredsOnly
- Whether or not to consider method
calls, field references and conditional nodes
when building bit mapStandardException
- Thrown on errorValueNode remapColumnReferencesToExpressions() throws StandardException
remapColumnReferencesToExpressions
in class ValueNode
StandardException
- Thrown on errorboolean isConstantExpression()
isConstantExpression
in class ValueNode
boolean constantExpression(PredicateList whereClause)
ValueNode
constantExpression
in class ValueNode
ValueNode.constantExpression(org.apache.derby.impl.sql.compile.PredicateList)
protected int getOrderableVariantType() throws StandardException
getOrderableVariantType
in class ValueNode
StandardException
- thrown on errorvoid acceptChildren(Visitor v) throws StandardException
acceptChildren
in class QueryTreeNode
v
- the visitorStandardException
- on errorboolean isEquivalent(ValueNode o) throws StandardException
ValueNode
This method provides basic expression matching facility for the derived class of ValueNode and it is used by the language layer to compare the node structural form of the two expressions for equivalence at bind phase.
Note that it is not comparing the actual row values at runtime to produce a result; hence, when comparing SQL NULLs, they are considered to be equivalent and not unknown.
One usage case of this method in this context is to compare the select column expression against the group by expression to check if they are equivalent. e.g.:
SELECT c1+c2 FROM t1 GROUP BY c1+c2
In general, node equivalence is determined by the derived class of ValueNode. But they generally abide to the rules below:
isEquivalent
in class ValueNode
o
- the node to compare this ValueNode against.true
if the two nodes are equivalent,
false
otherwise.StandardException
Apache Derby V10.13 Internals - Copyright © 2004,2016 The Apache Software Foundation. All Rights Reserved.