public Class ExecutionContext

Class Inheritance

extends Object

java.lang.Object
org.apache.pdfbox.pdmodel.common.function.type4.ExecutionContext

Imports

java.util.Stack

Makes up the execution context, holding the available operators and the execution stack.

Field Summary

Modifier and Type	Field and Description
private final Operators	operators
private final Stack<Object>	stack

Constructor Summary

Access	Constructor and Description
public	ExecutionContext(Operators the operator set operatorSet) Creates a new execution context.

Method Summary

Modifier and Type	Method and Description
public Operators	Returns: the operator set getOperators() Returns the operator set used by this execution context.
public Stack<Object>	Returns: the stack getStack() Returns the stack used by this execution context.
public int	Returns: the int value popInt() Pops a value of type int from the stack.
public Number	Returns: the number popNumber() Pops a number (int or real) from the stack.
public float	Returns: the real value popReal() Pops a number from the stack and returns it as a real value.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

operators	back to summary
private final Operators operators

stack	back to summary
private final Stack<Object> stack

Constructor Detail

ExecutionContext	back to summary
public ExecutionContext(Operators operatorSet) Creates a new execution context. Parameters operatorSet:Operators the operator set

ExecutionContext

back to summary

public ExecutionContext(Operators operatorSet)

Creates a new execution context.

Parameters

operatorSet:Operators: the operator set

Method Detail

getOperators	back to summary
public Operators getOperators() Returns the operator set used by this execution context. Returns:Operators the operator set

getOperators

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public Operators getOperators()

Returns the operator set used by this execution context.

Returns:Operators: the operator set

getStack	back to summary
public Stack<Object> getStack() Returns the stack used by this execution context. Returns:Stack<Object> the stack

getStack

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public Stack<Object> getStack()

Returns the stack used by this execution context.

Returns:Stack<Object>: the stack

popInt	back to summary
public int popInt() Pops a value of type int from the stack. If the value is not of type int, a ClassCastException is thrown. Returns:int the int value

popInt

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public int popInt()

Pops a value of type int from the stack. If the value is not of type int, a ClassCastException is thrown.

Returns:int: the int value

popNumber	back to summary
public Number popNumber() Pops a number (int or real) from the stack. If it's neither data type, a ClassCastException is thrown. Returns:Number the number

popNumber

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public Number popNumber()

Pops a number (int or real) from the stack. If it's neither data type, a ClassCastException is thrown.

Returns:Number: the number

popReal	back to summary
public float popReal() Pops a number from the stack and returns it as a real value. If the value is not of a numeric type, a ClassCastException is thrown. Returns:float the real value

popReal

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public float popReal()

Pops a number from the stack and returns it as a real value. If the value is not of a numeric type, a ClassCastException is thrown.

Returns:float: the real value