TestConstraintNode (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.UnaryOperatorNode
      - org.apache.derby.impl.sql.compile.UnaryLogicalOperatorNode
        
        org.apache.derby.impl.sql.compile.TestConstraintNode

All Implemented Interfaces:

Visitable
```
class TestConstraintNode
extends UnaryLogicalOperatorNode
```
A TestConstraintNode is used to determine when a constraint has been violated.

Field Summary

Fields
Modifier and Type	Field	Description
`private UUID`	`cid`
`private java.lang.String`	`constraintName`
`private boolean`	`deferrable`
`private java.lang.String`	`sqlState`
`private java.lang.String`	`tableName`

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.UnaryOperatorNode
K_BASE, K_XMLPARSE, K_XMLSERIALIZE, kind, methodName, operand, operator, receiverInterfaceType, resultInterfaceType, UnaryArgTypes, UnaryMethodNames, UnaryOperators, UnaryResultTypes

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

Constructor Summary

Constructors
Constructor	Description
`TestConstraintNode(ValueNode booleanValue, java.lang.String sqlState, java.lang.String tableName, ConstraintDescriptor cd, 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 the TestConstraint operator.

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.UnaryLogicalOperatorNode
setFullTypeInfo

Methods inherited from class org.apache.derby.impl.sql.compile.UnaryOperatorNode
acceptChildren, addXmlOpMethodParams, bindOperand, bindParameter, categorize, constantExpression, getOperand, getOperatorString, getOrderableVariantType, getParameterOperand, getReceiverInterfaceName, isConstantExpression, isEquivalent, isSameNodeKind, preprocess, printSubNodes, remapColumnReferencesToExpressions, setMethodName, setOperator, toString

Methods inherited from class org.apache.derby.impl.sql.compile.ValueNode
bindExpression, changeToCNF, checkIsBoolean, checkTopPredicatesForEqualsConditions, copyFields, eliminateNots, evaluateConstantExpressions, genEqualsFalseTree, generate, genIsNullTree, genSQLJavaSQLTree, 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

- Field Detail
  - sqlState
```
private final java.lang.String sqlState
```
  - tableName
```
private final java.lang.String tableName
```
  - cid
```
private final UUID cid
```
  - deferrable
```
private final boolean deferrable
```
  - constraintName
```
private final java.lang.String constraintName
```
- Constructor Detail
  - TestConstraintNode
```
TestConstraintNode(ValueNode booleanValue,
                   java.lang.String sqlState,
                   java.lang.String tableName,
                   ConstraintDescriptor cd,
                   ContextManager cm)
            throws StandardException
```
    Parameters:
    
    booleanValue - The operand of the constraint test
    
    sqlState - The SQLState of the exception to throw if the constraint has failed
    
    tableName - The name of the table that the constraint is on
    
    cd - The descriptor of the constraint being checked
    
    cm - context manager
    
    Throws:
    
    StandardException
- 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 operand, check that the operand is SQLBoolean, and set the result type to SQLBoolean.
    
    Overrides:
    
    bindExpression in class UnaryLogicalOperatorNode
    
    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
  - generateExpression
```
void generateExpression(ExpressionClassBuilder acb,
                        MethodBuilder mb)
                 throws StandardException
```
    Do code generation for the TestConstraint operator.
    
    Overrides:
    
    generateExpression in class UnaryOperatorNode
    
    Parameters:
    
    acb - The ExpressionClassBuilder for the class we're generating
    
    mb - The method the expression will go into
    
    Throws:
    
    StandardException - Thrown on error

Class TestConstraintNode

Field Summary

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

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

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

Constructor Summary

Method Summary

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.UnaryLogicalOperatorNode

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

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

Field Detail

sqlState

tableName

cid

deferrable

constraintName

Constructor Detail

TestConstraintNode

Method Detail

bindExpression

generateExpression