class BinaryOperatorNode extends OperatorNode
Modifier and Type | Field and Description |
---|---|
(package private) static int |
AND |
(package private) static java.lang.String[][] |
BinaryArgTypes |
(package private) static java.lang.String[] |
BinaryMethodNames |
(package private) static java.lang.String[] |
BinaryOperators |
(package private) static java.lang.String[] |
BinaryResultTypes |
(package private) static int |
CONCATENATE |
(package private) static int |
DIVIDE |
(package private) static int |
EQ |
(package private) static int |
GE |
(package private) static int |
GT |
(package private) static int |
K_BASE |
(package private) static int |
K_XMLEXISTS |
(package private) static int |
K_XMLQUERY |
(package private) int |
kind
This class is used to hold logically different objects for
space efficiency.
|
(package private) static int |
LE |
(package private) java.lang.String |
leftInterfaceType |
(package private) ValueNode |
leftOperand |
(package private) static int |
LIKE |
(package private) static int |
LT |
(package private) java.lang.String |
methodName |
(package private) static int |
MINUS |
(package private) static int |
NE |
(package private) java.lang.String |
operator |
(package private) static int |
OR |
(package private) static int |
PLUS |
(package private) ValueNode |
receiver |
(package private) java.lang.String |
resultInterfaceType |
(package private) java.lang.String |
rightInterfaceType |
(package private) ValueNode |
rightOperand |
(package private) static int |
TIMES |
private java.lang.String |
xmlQuery
The query expression if the operator is XMLEXISTS or XMLQUERY.
|
transformed
AUTOINCREMENT_CREATE_MODIFY, AUTOINCREMENT_CYCLE, AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX
Constructor and Description |
---|
BinaryOperatorNode(ContextManager cm) |
BinaryOperatorNode(ValueNode leftOperand,
ValueNode rightOperand,
int kind,
ContextManager cm)
Constructor for a concrete BinaryOperatorNode
|
BinaryOperatorNode(ValueNode leftOperand,
ValueNode rightOperand,
java.lang.String leftInterfaceType,
java.lang.String rightInterfaceType,
ContextManager cm) |
BinaryOperatorNode(ValueNode leftOperand,
ValueNode rightOperand,
java.lang.String operator,
java.lang.String methodName,
java.lang.String leftInterfaceType,
java.lang.String rightInterfaceType,
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) ValueNode |
bindExpression(FromList fromList,
SubqueryList subqueryList,
java.util.List<AggregateNode> aggregates)
Bind this expression.
|
ValueNode |
bindXMLQuery()
Bind an XMLEXISTS or XMLQUERY operator.
|
(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) void |
generateExpression(ExpressionClassBuilder acb,
MethodBuilder mb)
Do code generation for this binary operator.
|
(package private) ValueNode |
genSQLJavaSQLTree()
generate a SQL->Java->SQL conversion tree above the left and right
operand of this Binary Operator Node if needed.
|
(package private) ValueNode |
getLeftOperand()
Get the leftOperand
|
protected int |
getOrderableVariantType()
Return the variant type for the underlying expression.
|
(package private) java.lang.String |
getReceiverInterfaceName()
Determine the type the binary method is called on.
|
(package private) ValueNode |
getRightOperand()
Get the rightOperand
|
(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) boolean |
isSameNodeKind(ValueNode o)
Some node classes represent several logical node types (to reduce
footprint), which we call kinds.
|
(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 |
setLeftRightInterfaceType(java.lang.String iType)
Set the interface type for the left and right arguments.
|
(package private) void |
setMethodName(java.lang.String methodName)
Set the methodName.
|
(package private) void |
setOperator(java.lang.String operator)
Set the operator.
|
(package private) void |
setRightOperand(ValueNode newRightOperand)
Set the rightOperand to the specified ValueNode
|
java.lang.String |
toString()
Convert this object to a String.
|
pushSqlXmlUtil
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, 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 operator
java.lang.String methodName
ValueNode receiver
static final int PLUS
static final int MINUS
static final int TIMES
static final int DIVIDE
static final int CONCATENATE
static final int EQ
static final int NE
static final int GT
static final int GE
static final int LT
static final int LE
static final int AND
static final int OR
static final int LIKE
ValueNode leftOperand
ValueNode rightOperand
java.lang.String leftInterfaceType
java.lang.String rightInterfaceType
java.lang.String resultInterfaceType
static final int K_XMLEXISTS
static final int K_XMLQUERY
static final int K_BASE
final int kind
kind
represents the logical object
type. See also ValueNode.isSameNodeKind(org.apache.derby.impl.sql.compile.ValueNode)
.static final java.lang.String[] BinaryOperators
static final java.lang.String[] BinaryMethodNames
static final java.lang.String[] BinaryResultTypes
static final java.lang.String[][] BinaryArgTypes
private java.lang.String xmlQuery
BinaryOperatorNode(ContextManager cm)
BinaryOperatorNode(ValueNode leftOperand, ValueNode rightOperand, java.lang.String operator, java.lang.String methodName, java.lang.String leftInterfaceType, java.lang.String rightInterfaceType, ContextManager cm)
BinaryOperatorNode(ValueNode leftOperand, ValueNode rightOperand, java.lang.String leftInterfaceType, java.lang.String rightInterfaceType, ContextManager cm)
BinaryOperatorNode(ValueNode leftOperand, ValueNode rightOperand, int kind, ContextManager cm)
leftOperand
- The left operand of the noderightOperand
- The right operand of the nodekind
- The kind of operator.public java.lang.String toString()
void setOperator(java.lang.String operator)
operator
- The operator.void setMethodName(java.lang.String methodName)
methodName
- The methodName.void setLeftRightInterfaceType(java.lang.String iType)
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 errorpublic ValueNode bindXMLQuery() throws StandardException
StandardException
- Thrown on errorValueNode genSQLJavaSQLTree() throws StandardException
genSQLJavaSQLTree
in class ValueNode
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 generateExpression(ExpressionClassBuilder acb, MethodBuilder mb) throws StandardException
generateExpression
in class ValueNode
acb
- The ExpressionClassBuilder for the class we're generatingmb
- The method the code to place the codeStandardException
- Thrown on errorvoid setLeftOperand(ValueNode newLeftOperand)
newLeftOperand
- The new leftOperandValueNode getLeftOperand()
void setRightOperand(ValueNode newRightOperand)
newRightOperand
- The new rightOperandValueNode getRightOperand()
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)
java.lang.String getReceiverInterfaceName() throws StandardException
StandardException
- Thrown on errorprotected 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 isSameNodeKind(ValueNode o)
ValueNode
ValueNode.isEquivalent(org.apache.derby.impl.sql.compile.ValueNode)
cannot always just use instanceof
to check if the other node
represents the same kind. Hence this method needs to be
overridden by all node classes that represent several kinds.
This default implementation does not look at kinds.
It is only called from implementations of isEquivalent
.isSameNodeKind
in class ValueNode
o
- The other value node whose kind we want to compare with.true
if this
and o
represent the same
logical node type, i.e. kind.boolean 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.