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oracle.imaging
Class Search.Node

java.lang.Object
oracle.imaging.Search.Node

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

Search.Condition, Search.Conjunction

Enclosing class:

Search

public abstract static class Search.Node

extends java.lang.Object

implements java.io.Serializable

The Search.Node class provides the structure for a recursive structuring of the search expression. This class contains a left operand a logical searchOperator and a right operand. Each operand is also a Search.Node. The two classes that implement the behavior for this structure are:

• Search$ConditionThe concret leaf element of the search.
• Search$ConjunctionThe concrete node element of the search.

The search structure allows the logical building of a binary logic tree. This class implements\ the common behavior of the tree allowing the tree to be transversed in a left to right manner.

See Also:

Serialized Form

Nested Class Summary

static class

Search.Node.NodePk FOR INTERNAL USE ONLY

Field Summary

protected long	leftId
protected Search.Node	leftOperand
protected long	rightId
protected Search.Node	rightOperand
protected Search	search
protected long	searchNodeId
protected Search.Operator	searchOperator

Constructor Summary

Search.Node()
Default Constructor required for JAXB serialization.

Method Summary

boolean	getAlwaysDisplayParentheses() Returns the setting of the hint to always display parentheses around this node of a search expression.
Search.Node	getLeftOperand() Obtain the Left Operand for this object.
Search.Node	getRightOperand() Obtain the Right Operand for this object.
Search.Operator	getSearchOperator() Get the current Search Operator for this object.
boolean	isLeaf() A flag indicating whether this is a node or a leaf.
abstract boolean	isValidOperator() Tests the search searchOperator for validity.
void	setAlwaysDisplayParentheses(boolean alwaysDisplayParentheses) Enables or disables the hint to always display parentheses around this node of a search expression whenever the search expression is displayed.
void	setLeftOperand(Search.Node leftOperand) The Left Operand for this node.
void	setRightOperand(Search.Node rightOperand) The Right Operand for this node.
void	setSearchOperator(Search.Operator searchOperator) Saves the search searchOperator for this node of the tree.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

search

protected Search search

searchNodeId

protected long searchNodeId

rightId

protected long rightId

leftId

protected long leftId

leftOperand

protected Search.Node leftOperand

rightOperand

protected Search.Node rightOperand

searchOperator

protected Search.Operator searchOperator

Constructor Detail

Search.Node

public Search.Node()

Default Constructor required for JAXB serialization.

Method Detail

getLeftOperand

public Search.Node getLeftOperand()

Obtain the Left Operand for this object. This may be a node or a leaf.

Returns:

the left operand of the searchExpression.

getRightOperand

public Search.Node getRightOperand()

Obtain the Right Operand for this object. This may be a node or a leaf.

Returns:

the right operand of the searchExpression.

getSearchOperator

public Search.Operator getSearchOperator()

Get the current Search Operator for this object.

Returns:

the searchOperator for this node or condition.

setAlwaysDisplayParentheses

public void setAlwaysDisplayParentheses(boolean alwaysDisplayParentheses)

Enables or disables the hint to always display parentheses around this node of a search expression whenever the search expression is displayed. Enabling these optional parentheticals can sometimes improve the human readability of searches in some circumstances. Note that this setting only affects the legibility of the search expression and not the behavior. Also note that even if this option is disabled, parentheses may still be displayed around this node under some circumstances (e.g. the node implicitly evaluates "right-to-left").

Parameters:

alwaysDisplayParentheses - true to always display parentheses; false otherwise

getAlwaysDisplayParentheses

public boolean getAlwaysDisplayParentheses()

Returns the setting of the hint to always display parentheses around this node of a search expression.

Returns:

true if this node always display parentheses; false otherwise

isLeaf

public boolean isLeaf()

A flag indicating whether this is a node or a leaf.

Returns:

false - This is a node.

isValidOperator

public abstract boolean isValidOperator()

Tests the search searchOperator for validity. Each concrete subclass defines which of the Search$Operatorvalues are valid for that subclass.

Returns:

true if the Search$Operatoris valid.

setSearchOperator

public void setSearchOperator(Search.Operator searchOperator)

Saves the search searchOperator for this node of the tree.

Parameters:

searchOperator - The logical search searchOperator for this node.

setLeftOperand

public void setLeftOperand(Search.Node leftOperand)

The Left Operand for this node. A concrete subclass, either Search$Condition or Search$Conjunction

Parameters:

leftOperand - The left side of the logical expression.

setRightOperand

public void setRightOperand(Search.Node rightOperand)

The Right Operand for this node. A concrete subclass, either Search$Condition or Search$Conjunction

Parameters:

rightOperand - The right side of the logical expression.

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