VarbitConstantNode (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.ConstantNode
    - - org.apache.derby.impl.sql.compile.BitConstantNode
      - org.apache.derby.impl.sql.compile.VarbitConstantNode

All Implemented Interfaces:: Visitable

public final class VarbitConstantNode
extends BitConstantNode

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) static int`	`K_BLOB`
`(package private) static int`	`K_LONGVAR`
`(package private) static int`	`K_VAR`
`(package private) int`	`kind`	This class is used to hold logically different objects for space efficiency.

Fields inherited from class org.apache.derby.impl.sql.compile.ConstantNode
value

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

Constructor Summary

Constructors
Constructor	Description
`VarbitConstantNode(java.lang.String hexValue, int bitLength, ContextManager cm)`
`VarbitConstantNode(TypeId t, ContextManager cm)`	Construct constant node for one of VARBINARY, LONG VARBINARY and BLOB types.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) boolean`	`isSameNodeKind(ValueNode o)`	Some node classes represent several logical node types (to reduce footprint), which we call kinds.

Methods inherited from class org.apache.derby.impl.sql.compile.BitConstantNode
generateConstant, getConstantValueAsObject

Methods inherited from class org.apache.derby.impl.sql.compile.ConstantNode
bindExpression, constantExpression, generateExpression, getClone, getOrderableVariantType, getValue, isCloneable, isConstantExpression, isEquivalent, isNull, setValue, 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.QueryTreeNode
accept, acceptChildren, 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, printSubNodes, referencesSessionSchema, resolveTableToSynonym, setBeginOffset, setEndOffset, setRefActionInfo, stackPrint, taggedWith, treePrint, treePrint, verifyClassExist

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

- Field Detail
  - K_VAR
```
static final int K_VAR
```
    See Also:
    
    Constant Field Values
  - K_LONGVAR
```
static final int K_LONGVAR
```
    See Also:
    
    Constant Field Values
  - K_BLOB
```
static final int K_BLOB
```
    See Also:
    
    Constant Field Values
  - kind
```
final int kind
```
    This class is used to hold logically different objects for space efficiency. kind represents the logical object type. See also ValueNode.isSameNodeKind(org.apache.derby.impl.sql.compile.ValueNode).
- Constructor Detail
  - VarbitConstantNode
```
VarbitConstantNode(TypeId t,
                   ContextManager cm)
            throws StandardException
```
    Construct constant node for one of VARBINARY, LONG VARBINARY and BLOB types.
    
    Parameters:
    
    t - the type for which we want a constant node
    
    cm - context manager
    
    Throws:
    
    StandardException
  - VarbitConstantNode
```
VarbitConstantNode(java.lang.String hexValue,
                   int bitLength,
                   ContextManager cm)
            throws StandardException
```
    Throws:
    
    StandardException
- Method Detail
  - isSameNodeKind
```
boolean isSameNodeKind(ValueNode o)
```
    Description copied from class: ValueNode
    
    Some node classes represent several logical node types (to reduce footprint), which we call kinds. This means that implementations of 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.
    
    Overrides:
    
    isSameNodeKind in class ValueNode
    
    Parameters:
    
    o - The other value node whose kind we want to compare with.
    
    Returns:
    
    true if this and o represent the same logical node type, i.e. kind.

Class VarbitConstantNode

Field Summary

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

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.BitConstantNode

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

Methods inherited from class java.lang.Object

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

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

Field Detail

K_VAR

K_LONGVAR

K_BLOB

kind

Constructor Detail

VarbitConstantNode

VarbitConstantNode

Method Detail

isSameNodeKind